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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM')
120 files changed, 34499 insertions, 0 deletions
diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/main.c new file mode 100644 index 0000000..c3fa83c --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/main.c @@ -0,0 +1,284 @@ +/** + ****************************************************************************** + * @file TIM/6Steps/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_6Steps + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +TIM_BDTRInitTypeDef TIM_BDTRInitStructure; +uint16_t CCR1_Val = 32767; +uint16_t CCR2_Val = 24575; +uint16_t CCR3_Val = 16383; +uint16_t CCR4_Val = 8191; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void SysTick_Configuration(void); +void NVIC_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* NVIC Configuration */ + NVIC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* SysTick Configuration */ + SysTick_Configuration(); + + /*----------------------------------------------------------------------------- + The STM32F10x TIM1 peripheral offers the possibility to program in advance the + configuration for the next TIM1 outputs behaviour (step) and change the configuration + of all the channels at the same time. This operation is possible when the COM + (commutation) event is used. + The COM event can be generated by software by setting the COM bit in the TIM1_EGR + register or by hardware (on TRC rising edge). + In this example, a software COM event is generated each 100 ms: using the Systick + interrupt. + The TIM1 is configured in Timing Mode, each time a COM event occurs, + a new TIM1 configuration will be set in advance. + The following Table describes the TIM1 Channels states: + ----------------------------------------------- + | Step1 | Step2 | Step3 | Step4 | Step5 | Step6 | + ---------------------------------------------------------- + |Channel1 | 1 | 0 | 0 | 0 | 0 | 1 | + ---------------------------------------------------------- + |Channel1N | 0 | 0 | 1 | 1 | 0 | 0 | + ---------------------------------------------------------- + |Channel2 | 0 | 0 | 0 | 1 | 1 | 0 | + ---------------------------------------------------------- + |Channel2N | 1 | 1 | 0 | 0 | 0 | 0 | + ---------------------------------------------------------- + |Channel3 | 0 | 1 | 1 | 0 | 0 | 0 | + ---------------------------------------------------------- + |Channel3N | 0 | 0 | 0 | 0 | 1 | 1 | + ---------------------------------------------------------- + -----------------------------------------------------------------------------*/ + + /* Time Base configuration */ + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseStructure.TIM_Period = 4095; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; + + TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); + + /* Channel 1, 2,3 and 4 Configuration in PWM mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; + TIM_OCInitStructure.TIM_Pulse = 2047; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High; + TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; + TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Set; + + TIM_OC1Init(TIM1, &TIM_OCInitStructure); + + TIM_OCInitStructure.TIM_Pulse = 1023; + TIM_OC2Init(TIM1, &TIM_OCInitStructure); + + TIM_OCInitStructure.TIM_Pulse = 511; + TIM_OC3Init(TIM1, &TIM_OCInitStructure); + + /* Automatic Output enable, Break, dead time and lock configuration*/ + TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; + TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable; + TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF; + TIM_BDTRInitStructure.TIM_DeadTime = 1; + TIM_BDTRInitStructure.TIM_Break = TIM_Break_Enable; + TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High; + TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable; + + TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure); + + TIM_CCPreloadControl(TIM1, ENABLE); + + TIM_ITConfig(TIM1, TIM_IT_COM, ENABLE); + + /* TIM1 counter enable */ + TIM_Cmd(TIM1, ENABLE); + + /* Main Output Enable */ + TIM_CtrlPWMOutputs(TIM1, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM1, GPIOA, GPIOB, GPIOE and AFIO clocks enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOE| + RCC_APB2Periph_GPIOB |RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the TIM1 Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /* GPIOE Configuration: Channel 1/1N, 2/2N, 3/3N as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_11|GPIO_Pin_13| + GPIO_Pin_8|GPIO_Pin_10|GPIO_Pin_12; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + /* GPIOE Configuration: BKIN pin */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + /* TIM1 Full remapping pins */ + GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE); + +#else + /* GPIOA Configuration: Channel 1, 2 and 3 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: Channel 1N, 2N and 3N as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; + GPIO_Init(GPIOB, &GPIO_InitStructure); + + /* GPIOB Configuration: BKIN pin */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(GPIOB, &GPIO_InitStructure); +#endif +} + +/** + * @brief Configures the SysTick. + * @param None + * @retval None + */ +void SysTick_Configuration(void) +{ + /* Setup SysTick Timer for 100 msec interrupts */ + if (SysTick_Config((SystemCoreClock) / 10)) + { + /* Capture error */ + while (1); + } + + NVIC_SetPriority(SysTick_IRQn, 0x0); +} + +/** + * @brief Configures the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable the TIM1 Interrupt */ +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + NVIC_InitStructure.NVIC_IRQChannel = TIM1_TRG_COM_TIM17_IRQn; +#else + NVIC_InitStructure.NVIC_IRQChannel = TIM1_TRG_COM_IRQn; +#endif + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); + +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/readme.txt new file mode 100644 index 0000000..2fc3977 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/readme.txt @@ -0,0 +1,127 @@ +/** + @page TIM_6Steps TIM 6 Steps example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/6Steps/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM 6 Steps example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM1 peripheral to generate 6 Steps. +The STM32F10x TIM1 peripheral offers the possibility to program in advance the +configuration for the next TIM1 outputs behaviour (step) and change the configuration +of all the channels at the same time. This operation is possible when the COM +(commutation) event is used. +The COM event can be generated by software by setting the COM bit in the TIM1_EGR +register or by hardware (on TRC rising edge). +In this example, a software COM event is generated each 100 ms: using the SysTick +interrupt. +The TIM1 is configured in Timing Mode, each time a COM event occurs, a new TIM1 +configuration will be set in advance. + +The break Polarity is used at High level. + +The following Table describes the TIM1 Channels states: +@verbatim + ----------------------------------------------- + | Step1 | Step2 | Step3 | Step4 | Step5 | Step6 | + ---------------------------------------------------------- + |Channel1 | 1 | 0 | 0 | 0 | 0 | 1 | + ---------------------------------------------------------- + |Channel1N | 0 | 0 | 1 | 1 | 0 | 0 | + ---------------------------------------------------------- + |Channel2 | 0 | 0 | 0 | 1 | 1 | 0 | + ---------------------------------------------------------- + |Channel2N | 1 | 1 | 0 | 0 | 0 | 0 | + ---------------------------------------------------------- + |Channel3 | 0 | 1 | 1 | 0 | 0 | 0 | + ---------------------------------------------------------- + |Channel3N | 0 | 0 | 0 | 0 | 1 | 1 | + ---------------------------------------------------------- + @endverbatim + +@par Directory contents + + - TIM/6Steps/stm32f10x_conf.h Library Configuration file + - TIM/6Steps/stm32f10x_it.c Interrupt handlers + - TIM/6Steps/stm32f10x_it.h Interrupt handlers header file + - TIM/6Steps/main.c Main program + - TIM/6Steps/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + + - STM3210C-EVAL Set-up + - Connect the TIM1 pins(TIM1 full remapped pins) to an oscilloscope to monitor the different waveforms: + - TIM1_CH3 pin (PE.13) + - TIM1_CH1N pin (PE.08) + - TIM1_CH2 pin (PE.11) + - TIM1_CH3N pin (PE.12) + - TIM1_CH1 pin (PE.09) + - TIM1_CH2N pin (PE.10) + - Connect the TIM1 break pin TIM1_BKIN pin (PE.15) to the GND. To generate a + break event, switch this pin level from 0V to 3.3V. + + - STM3210E-EVAL, STM3210B-EVAL, STM32100B-EVAL and STM32100E-EVAL Set-up + - Connect the TIM1 pins to an oscilloscope to monitor the different waveforms: + - TIM1_CH3 pin (PA.10) + - TIM1_CH1N pin (PB.13) + - TIM1_CH2 pin (PA.09) + - TIM1_CH3N pin (PB.15) + - TIM1_CH1 pin (PA.08) + - TIM1_CH2N pin (PB.14) + - Connect the TIM1 break pin TIM1_BKIN pin (PB.12) to the GND. To generate a + break event, switch this pin level from 0V to 3.3V. + + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_conf.h new file mode 100644 index 0000000..53e2221 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_conf.h @@ -0,0 +1,78 @@ +/** + ****************************************************************************** + * @file TIM/6Steps/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_it.c new file mode 100644 index 0000000..f90cc9f --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_it.c @@ -0,0 +1,293 @@ +/** + ****************************************************************************** + * @file TIM/6Steps/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_6Steps + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +__IO uint32_t step = 1; + +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{ + /* Generate TIM1 COM event by software */ + TIM_GenerateEvent(TIM1, TIM_EventSource_COM); +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles TIM1 Trigger and commutation interrupts + * requests. + * @param None + * @retval None + */ +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) +void TIM1_TRG_COM_TIM17_IRQHandler(void) +#else +void TIM1_TRG_COM_IRQHandler(void) +#endif +{ + /* Clear TIM1 COM pending bit */ + TIM_ClearITPendingBit(TIM1, TIM_IT_COM); + + if (step == 1) + { + /* Next step: Step 2 Configuration ---------------------------- */ + /* Channel3 configuration */ + TIM_CCxCmd(TIM1, TIM_Channel_3, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_3, TIM_CCxN_Disable); + + /* Channel1 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_1, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Enable); + TIM_CCxNCmd(TIM1, TIM_Channel_1, TIM_CCxN_Disable); + + /* Channel2 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_2, TIM_OCMode_PWM1 ); + TIM_CCxCmd(TIM1, TIM_Channel_2, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_2, TIM_CCxN_Enable); + step++; + } + else if (step == 2) + { + /* Next step: Step 3 Configuration ---------------------------- */ + /* Channel2 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_2, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_2, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_2, TIM_CCxN_Enable); + + /* Channel3 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_3, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_3, TIM_CCx_Enable); + TIM_CCxNCmd(TIM1, TIM_Channel_3, TIM_CCxN_Disable); + + /* Channel1 configuration */ + TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_1, TIM_CCxN_Disable); + step++; + } + else if (step == 3) + { + /* Next step: Step 4 Configuration ---------------------------- */ + /* Channel3 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_3, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_3, TIM_CCx_Enable); + TIM_CCxNCmd(TIM1, TIM_Channel_3, TIM_CCxN_Disable); + + /* Channel2 configuration */ + TIM_CCxCmd(TIM1, TIM_Channel_2, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_2, TIM_CCxN_Disable); + + /* Channel1 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_1, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_1, TIM_CCxN_Enable); + step++; + } + else if (step == 4) + { + /* Next step: Step 5 Configuration ---------------------------- */ + /* Channel3 configuration */ + TIM_CCxCmd(TIM1, TIM_Channel_3, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_3, TIM_CCxN_Disable); + + /* Channel1 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_1, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_1, TIM_CCxN_Enable); + + /* Channel2 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_2, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_2, TIM_CCx_Enable); + TIM_CCxNCmd(TIM1, TIM_Channel_2, TIM_CCxN_Disable); + step++; + } + else if (step == 5) + { + /* Next step: Step 6 Configuration ---------------------------- */ + /* Channel3 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_3, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_3, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_3, TIM_CCxN_Enable); + + /* Channel1 configuration */ + TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_1, TIM_CCxN_Disable); + + /* Channel2 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_2, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_2, TIM_CCx_Enable); + TIM_CCxNCmd(TIM1, TIM_Channel_2, TIM_CCxN_Disable); + step++; + } + else + { + /* Next step: Step 1 Configuration ---------------------------- */ + /* Channel1 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_1, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_1, TIM_CCx_Enable); + TIM_CCxNCmd(TIM1, TIM_Channel_2, TIM_CCxN_Disable); + + /* Channel3 configuration */ + TIM_SelectOCxM(TIM1, TIM_Channel_3, TIM_OCMode_PWM1); + TIM_CCxCmd(TIM1, TIM_Channel_3, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_3, TIM_CCxN_Enable); + + /* Channel2 configuration */ + TIM_CCxCmd(TIM1, TIM_Channel_2, TIM_CCx_Disable); + TIM_CCxNCmd(TIM1, TIM_Channel_2, TIM_CCxN_Disable); + step = 1; + } +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_it.h new file mode 100644 index 0000000..12ed6f1 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/stm32f10x_it.h @@ -0,0 +1,51 @@ +/** + ****************************************************************************** + * @file TIM/6Steps/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) +void TIM1_TRG_COM_TIM17_IRQHandler(void); +#else +void TIM1_TRG_COM_IRQHandler(void); +#endif + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/system_stm32f10x.c new file mode 100644 index 0000000..be27213 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/6Steps/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/6Steps/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/main.c new file mode 100644 index 0000000..7f23815 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/main.c @@ -0,0 +1,210 @@ +/** + ****************************************************************************** + * @file TIM/7PWM_Output/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_7PWM_Output + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t TimerPeriod = 0; +uint16_t Channel1Pulse = 0, Channel2Pulse = 0, Channel3Pulse = 0, Channel4Pulse = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* TIM1 Configuration --------------------------------------------------- + Generate 7 PWM signals with 4 different duty cycles: + TIM1CLK = SystemCoreClock, Prescaler = 0, TIM1 counter clock = SystemCoreClock + SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices and to 24 MHz for Low-Density Value line and + Medium-Density Value line devices + + The objective is to generate 7 PWM signal at 17.57 KHz: + - TIM1_Period = (SystemCoreClock / 17570) - 1 + The channel 1 and channel 1N duty cycle is set to 50% + The channel 2 and channel 2N duty cycle is set to 37.5% + The channel 3 and channel 3N duty cycle is set to 25% + The channel 4 duty cycle is set to 12.5% + The Timer pulse is calculated as follows: + - ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100 + ----------------------------------------------------------------------- */ + /* Compute the value to be set in ARR regiter to generate signal frequency at 17.57 Khz */ + TimerPeriod = (SystemCoreClock / 17570 ) - 1; + /* Compute CCR1 value to generate a duty cycle at 50% for channel 1 and 1N */ + Channel1Pulse = (uint16_t) (((uint32_t) 5 * (TimerPeriod - 1)) / 10); + /* Compute CCR2 value to generate a duty cycle at 37.5% for channel 2 and 2N */ + Channel2Pulse = (uint16_t) (((uint32_t) 375 * (TimerPeriod - 1)) / 1000); + /* Compute CCR3 value to generate a duty cycle at 25% for channel 3 and 3N */ + Channel3Pulse = (uint16_t) (((uint32_t) 25 * (TimerPeriod - 1)) / 100); + /* Compute CCR4 value to generate a duty cycle at 12.5% for channel 4 */ + Channel4Pulse = (uint16_t) (((uint32_t) 125 * (TimerPeriod- 1)) / 1000); + + /* Time Base configuration */ + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseStructure.TIM_Period = TimerPeriod; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; + + TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); + + /* Channel 1, 2,3 and 4 Configuration in PWM mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; + TIM_OCInitStructure.TIM_Pulse = Channel1Pulse; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; + TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High; + TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; + TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; + + TIM_OC1Init(TIM1, &TIM_OCInitStructure); + + TIM_OCInitStructure.TIM_Pulse = Channel2Pulse; + TIM_OC2Init(TIM1, &TIM_OCInitStructure); + + TIM_OCInitStructure.TIM_Pulse = Channel3Pulse; + TIM_OC3Init(TIM1, &TIM_OCInitStructure); + + TIM_OCInitStructure.TIM_Pulse = Channel4Pulse; + TIM_OC4Init(TIM1, &TIM_OCInitStructure); + + /* TIM1 counter enable */ + TIM_Cmd(TIM1, ENABLE); + + /* TIM1 Main Output Enable */ + TIM_CtrlPWMOutputs(TIM1, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM1, GPIOA, GPIOB, GPIOE and AFIO clocks enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOE| + RCC_APB2Periph_GPIOB |RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the TIM1 Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /* GPIOE Configuration: Channel 1/1N, 2/2N, 3/3N and 4 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_11|GPIO_Pin_13|GPIO_Pin_14| + GPIO_Pin_8|GPIO_Pin_10|GPIO_Pin_12; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + /* TIM1 Full remapping pins */ + GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE); + +#else + /* GPIOA Configuration: Channel 1, 2 and 3 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: Channel 1N, 2N and 3N as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; + GPIO_Init(GPIOB, &GPIO_InitStructure); + +#endif +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/readme.txt new file mode 100644 index 0000000..d2c3069 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/readme.txt @@ -0,0 +1,110 @@ +/** + @page TIM_7PWM_Output TIM 7 PWM Output example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/7PWM_Output/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM 7 PWM Output example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM1 peripheral to generate 7 PWM signals +with 4 different duty cycles (50%, 37.5%, 25% and 12.5%). + +TIM1CLK = SystemCoreClock, Prescaler = 0, TIM1 counter clock = SystemCoreClock +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices. For Low-Density Value line, Medium-Density and +High-density Value line devices, SystemCoreClock is set to 24 MHz. + +The objective is to generate 7 PWM signal at 17.57 KHz: + - TIM1_Period = (SystemCoreClock / 17570) - 1 +The channel 1 and channel 1N duty cycle is set to 50% +The channel 2 and channel 2N duty cycle is set to 37.5% +The channel 3 and channel 3N duty cycle is set to 25% +The channel 4 duty cycle is set to 12.5% +The Timer pulse is calculated as follows: + - ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100 + +The TIM1 waveform can be displayed using an oscilloscope. + +@par Directory contents + + - TIM/7PWM_Output/stm32f10x_conf.h Library Configuration file + - TIM/7PWM_Output/stm32f10x_it.c Interrupt handlers + - TIM/7PWM_Output/stm32f10x_it.h Interrupt handlers header file + - TIM/7PWM_Output/main.c Main program + - TIM/7PWM_Output/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + + - STM3210C-EVAL Set-up + - Connect the TIM1 pins(TIM1 full remapped pins) to an oscilloscope to monitor the different waveforms: + - TIM1_CH1 pin (PE.08) + - TIM1_CH1N pin (PE.09) + - TIM1_CH2 pin (PE.10) + - TIM1_CH2N pin (PE.11) + - TIM1_CH3 pin (PE.12) + - TIM1_CH3N pin (PE.13) + - TIM1_CH4 pin (PE.14) + + - STM3210E-EVAL, STM3210B-EVAL, STM32100B-EVAL and STM32100E-EVAL Set-up + - Connect the TIM1 pins to an oscilloscope to monitor the different waveforms: + - TIM1_CH1 pin (PA.08) + - TIM1_CH1N pin (PB.13) + - TIM1_CH2 pin (PA.09) + - TIM1_CH2N pin (PB.14) + - TIM1_CH3 pin (PA.10) + - TIM1_CH3N pin (PB.15) + - TIM1_CH4 pin (PA.11) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_conf.h new file mode 100644 index 0000000..9827ef8 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_conf.h @@ -0,0 +1,78 @@ +/** + ****************************************************************************** + * @file TIM/7PWM_Output/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_it.c new file mode 100644 index 0000000..bf0b15b --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_it.c @@ -0,0 +1,158 @@ +/** + ****************************************************************************** + * @file TIM/7PWM_Output/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_7PWM_Output + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_it.h new file mode 100644 index 0000000..4f1bba1 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/7PWM_Output/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/system_stm32f10x.c new file mode 100644 index 0000000..19c5e51 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/7PWM_Output/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/7PWM_Output/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/main.c new file mode 100644 index 0000000..172f3ee --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/main.c @@ -0,0 +1,251 @@ +/** + ****************************************************************************** + * @file TIM/Cascade_Synchro/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_Cascade_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* Timers synchronisation in cascade mode ---------------------------- + 1/TIM2 is configured as Master Timer: + - PWM Mode is used + - The TIM2 Update event is used as Trigger Output + + 2/TIM3 is slave for TIM2 and Master for TIM4, + - PWM Mode is used + - The ITR1(TIM2) is used as input trigger + - Gated mode is used, so start and stop of slave counter + are controlled by the Master trigger output signal(TIM2 update event). + - The TIM3 Update event is used as Trigger Output. + + 3/TIM4 is slave for TIM3, + - PWM Mode is used + - The ITR2(TIM3) is used as input trigger + - Gated mode is used, so start and stop of slave counter + are controlled by the Master trigger output signal(TIM3 update event). + + * For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHz, the TIM2 counter clock is 72 MHz. + + The Master Timer TIM2 is running at TIM2 frequency : + TIM2 frequency = (TIM2 counter clock)/ (TIM2 period + 1) = 281.250 KHz + and the duty cycle = TIM2_CCR1/(TIM2_ARR + 1) = 25%. + + The TIM3 is running: + - At (TIM2 frequency)/ (TIM3 period + 1) = 70.312 KHz and a duty cycle + equal to TIM3_CCR1/(TIM3_ARR + 1) = 25% + + The TIM4 is running: + - At (TIM3 frequency)/ (TIM4 period + 1) = 17.578 KHz and a duty cycle + equal to TIM4_CCR1/(TIM4_ARR + 1) = 25% + + * For Low-Density Value line,Medium-Density and High-Density Value line devices: + The TIMxCLK is fixed to 24 MHz, the TIM2 counter clock is 24 MHz. + So TIM2 frequency = 93.750 KHz, + TIM3 is running at 23.437 KHz, + and TIM4 is running at 5.85 KHz + -------------------------------------------------------------------- */ + + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 255; + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); + + TIM_TimeBaseStructure.TIM_Period = 3; + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + TIM_TimeBaseStructure.TIM_Period = 3; + TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); + + /* Master Configuration in PWM1 Mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 64; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM2, &TIM_OCInitStructure); + + /* Select the Master Slave Mode */ + TIM_SelectMasterSlaveMode(TIM2, TIM_MasterSlaveMode_Enable); + + /* Master Mode selection */ + TIM_SelectOutputTrigger(TIM2, TIM_TRGOSource_Update); + + /* Slaves Configuration: PWM1 Mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 1; + + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + TIM_OC1Init(TIM4, &TIM_OCInitStructure); + + /* Slave Mode selection: TIM3 */ + TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Gated); + TIM_SelectInputTrigger(TIM3, TIM_TS_ITR1); + + /* Select the Master Slave Mode */ + TIM_SelectMasterSlaveMode(TIM3, TIM_MasterSlaveMode_Enable); + + /* Master Mode selection: TIM3 */ + TIM_SelectOutputTrigger(TIM3, TIM_TRGOSource_Update); + + /* Slave Mode selection: TIM4 */ + TIM_SelectSlaveMode(TIM4, TIM_SlaveMode_Gated); + TIM_SelectInputTrigger(TIM4, TIM_TS_ITR2); + + /* TIM enable counter */ + TIM_Cmd(TIM3, ENABLE); + TIM_Cmd(TIM2, ENABLE); + TIM_Cmd(TIM4, ENABLE); + + while (1) + { + } +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM2, TIM3 and TIM4 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | + RCC_APB1Periph_TIM4, ENABLE); + + /* GPIOA, GPIOB, GPIOC and AFIO clocks enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | + RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the GPIOD Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /*GPIOB Configuration: PC6(TIM3 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 ; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); + +#else +/* GPIOA Configuration: PA6(TIM3 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); +#endif + /* GPIOA Configuration: PA0(TIM2 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: PB6(TIM4 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + + GPIO_Init(GPIOB, &GPIO_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/readme.txt new file mode 100644 index 0000000..c842531 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/readme.txt @@ -0,0 +1,127 @@ +/** + @page TIM_Cascade_Synchro TIM Cascade Synchro example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/Cascade_Synchro/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM Cascade Synchro example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to synchronize TIM peripherals in cascade mode. +In this example three timers are used: + +Timers synchronisation in cascade mode: + +1/TIM2 is configured as Master Timer: + - PWM Mode is used + - The TIM2 Update event is used as Trigger Output + +2/TIM3 is slave for TIM2 and Master for TIM4, + - PWM Mode is used + - The ITR1(TIM2) is used as input trigger + - Gated mode is used, so start and stop of slave counter + are controlled by the Master trigger output signal(TIM2 update event). + - The TIM3 Update event is used as Trigger Output. + +3/TIM4 is slave for TIM3, + - PWM Mode is used + - The ITR2(TIM3) is used as input trigger + - Gated mode is used, so start and stop of slave counter are controlled by the + Master trigger output signal(TIM3 update event). + +o For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHz, the TIM2 counter clock is 72 MHz. + + The Master Timer TIM2 is running at TIM2 frequency : + TIM2 frequency = (TIM2 counter clock)/ (TIM2 period + 1) = 281.250 KHz + and the duty cycle = TIM2_CCR1/(TIM2_ARR + 1) = 25%. + + The TIM3 is running at: + (TIM2 frequency)/ (TIM3 period + 1) = 70.312 KHz and a duty cycle equal + to TIM3_CCR1/(TIM3_ARR + 1) = 25% + + The TIM4 is running at: + (TIM3 frequency)/ (TIM4 period + 1) = 17.578 Hz and a duty cycle equal + to TIM4_CCR1/(TIM4_ARR + 1) = 25% + +o For Low-Density Value line, Medium-Density and High-Density Value line devices: + The TIMxCLK is fixed to 24 MHz, the TIM2 counter clock is 24 MHz. + So TIM2 frequency = 93.750 KHz, + TIM3 is running at 23.437 KHz, + and TIM4 is running at 5.85 KHz + +@par Directory contents + + - TIM/Cascade_Synchro/stm32f10x_conf.h Library Configuration file + - TIM/Cascade_Synchro/stm32f10x_it.c Interrupt handlers + - TIM/Cascade_Synchro/stm32f10x_it.h Interrupt handlers header file + - TIM/Cascade_Synchro/main.c Main program + - TIM/Cascade_Synchro/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM3210C-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - TIM2 CH1 (PA.00) + - TIM3 CH1 (PC.06) Remapped pin + - TIM4 CH1 (PB.06) + + - STM3210E-EVAL, STM3210B-EVAL, STM32100B-EVAL and STM32100E-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - TIM2 CH1 (PA.00) + - TIM3 CH1 (PA.06) + - TIM4 CH1 (PB.06) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_conf.h new file mode 100644 index 0000000..e42fe40 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/Cascade_Synchro/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_it.c new file mode 100644 index 0000000..0e0b5bb --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_it.c @@ -0,0 +1,158 @@ +/** + ****************************************************************************** + * @file TIM/Cascade_Synchro/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_Cascade_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_it.h new file mode 100644 index 0000000..ea41bc8 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/Cascade_Synchro/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/system_stm32f10x.c new file mode 100644 index 0000000..4a408b6 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Cascade_Synchro/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/Cascade_Synchro/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/main.c new file mode 100644 index 0000000..8095899 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/main.c @@ -0,0 +1,240 @@ +/** + ****************************************************************************** + * @file TIM/ComplementarySignals/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_ComplementarySignals + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +TIM_BDTRInitTypeDef TIM_BDTRInitStructure; +uint16_t TimerPeriod = 0; +uint16_t Channel1Pulse = 0, Channel2Pulse = 0, Channel3Pulse = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* ----------------------------------------------------------------------- + TIM1 Configuration to: + + 1/ Generate 3 complementary PWM signals with 3 different duty cycles: + TIM1CLK is fixed to SystemCoreClock, the TIM1 Prescaler is equal to 0 so the + TIM1 counter clock used is SystemCoreClock. + * SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices. For Low-Density Value line and Medium-Density + Value line devices, SystemCoreClock is set to 24 MHz. + + The objective is to generate PWM signal at 17.57 KHz: + - TIM1_Period = (SystemCoreClock / 17570) - 1 + + The Three Duty cycles are computed as the following description: + + The channel 1 duty cycle is set to 50% so channel 1N is set to 50%. + The channel 2 duty cycle is set to 25% so channel 2N is set to 75%. + The channel 3 duty cycle is set to 12.5% so channel 3N is set to 87.5%. + The Timer pulse is calculated as follows: + - ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100 + + 2/ Insert a dead time equal to 11/SystemCoreClock ns + 3/ Configure the break feature, active at High level, and using the automatic + output enable feature + 4/ Use the Locking parameters level1. + ----------------------------------------------------------------------- */ + + /* Compute the value to be set in ARR register to generate signal frequency at 17.57 Khz */ + TimerPeriod = (SystemCoreClock / 17570) - 1; + /* Compute CCR1 value to generate a duty cycle at 50% for channel 1 */ + Channel1Pulse = (uint16_t) (((uint32_t) 5 * (TimerPeriod - 1)) / 10); + /* Compute CCR2 value to generate a duty cycle at 25% for channel 2 */ + Channel2Pulse = (uint16_t) (((uint32_t) 25 * (TimerPeriod - 1)) / 100); + /* Compute CCR3 value to generate a duty cycle at 12.5% for channel 3 */ + Channel3Pulse = (uint16_t) (((uint32_t) 125 * (TimerPeriod - 1)) / 1000); + + /* Time Base configuration */ + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseStructure.TIM_Period = TimerPeriod; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; + + TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); + + /* Channel 1, 2 and 3 Configuration in PWM mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; + TIM_OCInitStructure.TIM_Pulse = Channel1Pulse; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; + TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low; + TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; + TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; + + TIM_OC1Init(TIM1, &TIM_OCInitStructure); + + TIM_OCInitStructure.TIM_Pulse = Channel2Pulse; + TIM_OC2Init(TIM1, &TIM_OCInitStructure); + + TIM_OCInitStructure.TIM_Pulse = Channel3Pulse; + TIM_OC3Init(TIM1, &TIM_OCInitStructure); + + /* Automatic Output enable, Break, dead time and lock configuration*/ + TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; + TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable; + TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_1; + TIM_BDTRInitStructure.TIM_DeadTime = 11; + TIM_BDTRInitStructure.TIM_Break = TIM_Break_Enable; + TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High; + TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable; + + TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure); + + /* TIM1 counter enable */ + TIM_Cmd(TIM1, ENABLE); + + /* Main Output Enable */ + TIM_CtrlPWMOutputs(TIM1, ENABLE); + + while (1) + { + } +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM1, GPIOA, GPIOB, GPIOE and AFIO clocks enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOE| + RCC_APB2Periph_GPIOB |RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the TIM1 Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /* GPIOE Configuration: Channel 1/1N, 2/2N, 3/3N as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_11|GPIO_Pin_13| + GPIO_Pin_8|GPIO_Pin_10|GPIO_Pin_12; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + /* GPIOE Configuration: BKIN pin */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + /* TIM1 Full remapping pins */ + GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE); + +#else + /* GPIOA Configuration: Channel 1, 2 and 3 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: Channel 1N, 2N and 3N as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; + GPIO_Init(GPIOB, &GPIO_InitStructure); + + /* GPIOB Configuration: BKIN pin */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(GPIOB, &GPIO_InitStructure); +#endif +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/readme.txt new file mode 100644 index 0000000..4174001 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/readme.txt @@ -0,0 +1,120 @@ +/** + @page TIM_ComplementarySignals TIM Complementary Signals example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/ComplementarySignals/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM Complementary Signals example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM1 peripheral to generate three +complementary TIM1 signals, to insert a defined dead time value, to use the break +feature and to lock the desired parameters. + +TIM1CLK is fixed to SystemCoreClock, the TIM1 Prescaler is equal to 0 so the +TIM1 counter clock used is SystemCoreClock. +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices. For Low-Density Value line, Medium-Density and +High-Density Value line devices, SystemCoreClock is set to 24 MHz. + +The objective is to generate PWM signal at 17.57 KHz: + - TIM1_Period = (SystemCoreClock / 17570) - 1 + +The Three Duty cycles are computed as the following description: +The channel 1 duty cycle is set to 50% so channel 1N is set to 50%. +The channel 2 duty cycle is set to 25% so channel 2N is set to 75%. +The channel 3 duty cycle is set to 12.5% so channel 3N is set to 87.5%. +The Timer pulse is calculated as follows: + - ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100 + +A dead time equal to 11/SystemCoreClock is inserted between the different +complementary signals, and the Lock level 1 is selected. +The break Polarity is used at High level. + +The TIM1 waveform can be displayed using an oscilloscope. + +@par Directory contents + + - TIM/ComplementarySignals/stm32f10x_conf.h Library Configuration file + - TIM/ComplementarySignals/stm32f10x_it.c Interrupt handlers + - TIM/ComplementarySignals/stm32f10x_it.h Interrupt handlers header file + - TIM/ComplementarySignals/main.c Main program + - TIM/ComplementarySignals/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + + - STM3210C-EVAL Set-up + - Connect the TIM1 pins(TIM1 full remapped pins) to an oscilloscope to monitor the different waveforms: + - TIM1_CH1 pin (PE.09) + - TIM1_CH1N pin (PE.08) + - TIM1_CH2 pin (PE.11) + - TIM1_CH1N pin (PE.10) + - TIM1_CH3 pin (PE.13) + - TIM1_CH3N pin (PE.12) + - Connect the TIM1 break pin TIM1_BKIN pin (PE.15) to the GND. To generate a + break event, switch this pin level from 0V to 3.3V. + + - STM3210E-EVAL, STM3210B-EVAL, STM32100B-EVAL and STM32100E-EVAL Set-up + - Connect the TIM1 pins to an oscilloscope to monitor the different waveforms: + - TIM1_CH1 pin (PA.08) + - TIM1_CH1N pin (PB.13) + - TIM1_CH2 pin (PA.09) + - TIM1_CH2N pin (PB.14) + - TIM1_CH3 pin (PA.10) + - TIM1_CH3N pin (PB.15) + + - Connect the TIM1 break pin TIM1_BKIN pin (PB.12) to the GND. To generate a + break event, switch this pin level from 0V to 3.3V. + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_conf.h new file mode 100644 index 0000000..5985ace --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/ComplementarySignals/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_it.c new file mode 100644 index 0000000..3725d4d --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_it.c @@ -0,0 +1,158 @@ +/** + ****************************************************************************** + * @file TIM/ComplementarySignals/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_ComplementarySignals + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_it.h new file mode 100644 index 0000000..b4e5a70 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/ComplementarySignals/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/system_stm32f10x.c new file mode 100644 index 0000000..4ebbc9b --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ComplementarySignals/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/ComplementarySignals/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/main.c new file mode 100644 index 0000000..f1266dd --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/main.c @@ -0,0 +1,226 @@ +/** + ****************************************************************************** + * @file TIM/DMA/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_DMA + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +#define TIM1_CCR3_Address 0x40012C3C + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t SRC_Buffer[3] = {0, 0, 0}; +uint16_t TimerPeriod = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void DMA_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* DMA Configuration */ + DMA_Configuration(); + + /* TIM1 DMA Transfer example ------------------------------------------------- + TIM1CLK = SystemCoreClock, Prescaler = 0, TIM1 counter clock = SystemCoreClock + SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices and to 24 MHz for Low-Density Value line and + Medium-Density Value line devices. + + The objective is to configure TIM1 channel 3 to generate complementary PWM + signal with a frequency equal to 17.57 KHz: + - TIM1_Period = (SystemCoreClock / 17570) - 1 + and a variable duty cycle that is changed by the DMA after a specific number of + Update DMA request. + + The number of this repetitive requests is defined by the TIM1 Repetition counter, + each 3 Update Requests, the TIM1 Channel 3 Duty Cycle changes to the next new + value defined by the SRC_Buffer . + -----------------------------------------------------------------------------*/ + /* Compute the value to be set in ARR register to generate signal frequency at 17.57 Khz */ + TimerPeriod = (SystemCoreClock / 17570 ) - 1; + /* Compute CCR1 value to generate a duty cycle at 50% */ + SRC_Buffer[0] = (uint16_t) (((uint32_t) 5 * (TimerPeriod - 1)) / 10); + /* Compute CCR1 value to generate a duty cycle at 37.5% */ + SRC_Buffer[1] = (uint16_t) (((uint32_t) 375 * (TimerPeriod - 1)) / 1000); + /* Compute CCR1 value to generate a duty cycle at 25% */ + SRC_Buffer[2] = (uint16_t) (((uint32_t) 25 * (TimerPeriod - 1)) / 100); + + /* TIM1 Peripheral Configuration --------------------------------------------*/ + /* Time Base configuration */ + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseStructure.TIM_Period = TimerPeriod; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_RepetitionCounter = 2; + + TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); + + /* Channel 3 Configuration in PWM mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; + TIM_OCInitStructure.TIM_Pulse = SRC_Buffer[0]; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; + TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low; + TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; + TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; + + TIM_OC3Init(TIM1, &TIM_OCInitStructure); + + /* TIM1 Update DMA Request enable */ + TIM_DMACmd(TIM1, TIM_DMA_Update, ENABLE); + + /* TIM1 counter enable */ + TIM_Cmd(TIM1, ENABLE); + + /* Main Output Enable */ + TIM_CtrlPWMOutputs(TIM1, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM1, GPIOA and GPIOB clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | + RCC_APB2Periph_GPIOB, ENABLE); + /* DMA clock enable */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); +} + +/** + * @brief Configure the TIM1 Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* GPIOA Configuration: Channel 3 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: Channel 3N as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; + GPIO_Init(GPIOB, &GPIO_InitStructure); +} + +/** + * @brief Configures the DMA. + * @param None + * @retval None + */ +void DMA_Configuration(void) +{ + DMA_InitTypeDef DMA_InitStructure; + + /* DMA1 Channel5 Config */ + DMA_DeInit(DMA1_Channel5); + + DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)TIM1_CCR3_Address; + DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)SRC_Buffer; + DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; + DMA_InitStructure.DMA_BufferSize = 3; + DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; + DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; + DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; + DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; + DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; + DMA_InitStructure.DMA_Priority = DMA_Priority_High; + DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; + + DMA_Init(DMA1_Channel5, &DMA_InitStructure); + + /* DMA1 Channel5 enable */ + DMA_Cmd(DMA1_Channel5, ENABLE); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/readme.txt new file mode 100644 index 0000000..436b3fb --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/readme.txt @@ -0,0 +1,95 @@ +/** + @page TIM_DMA TIM DMA example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/DMA/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM DMA example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example provides a description of how to use DMA with TIM1 Update request +to transfer Data from memory to TIM1 Capture Compare Register3. + +TIM1CLK = SystemCoreClock, Prescaler = 0, TIM1 counter clock = SystemCoreClock +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices. For Low-Density Value line, Medium-Density and +High-Density Value line devices, SystemCoreClock is set to 24 MHz. + +The objective is to configure TIM1 channel 3 to generate complementary PWM +signal with a frequency equal to 17.57 KHz: + - TIM1_Period = (SystemCoreClock / 17570) - 1 +and a variable duty cycle that is changed by the DMA after a specific number of +Update DMA request. + +The number of this repetitive requests is defined by the TIM1 Repetion counter, +each 3 Update Requests, the TIM1 Channel 3 Duty Cycle changes to the next new +value defined by the SRC_Buffer. + + +@par Directory contents + + - TIM/DMA/stm32f10x_conf.h Library Configuration file + - TIM/DMA/stm32f10x_it.c Interrupt handlers + - TIM/DMA/stm32f10x_it.h Interrupt handlers header file + - TIM/DMA/main.c Main program + - TIM/DMA/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100E-EVAL, STM32100B-EVAL, STM3210C-EVAL, STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - TIM1 CH3 (PA.10) + - TIM1 CH3N (PB.15) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_conf.h new file mode 100644 index 0000000..84b2d00 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/DMA/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_it.c new file mode 100644 index 0000000..7fca938 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_it.c @@ -0,0 +1,159 @@ +/** + ****************************************************************************** + * @file TIM/DMA/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_DMA + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_it.h new file mode 100644 index 0000000..e5284ca --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/DMA/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/system_stm32f10x.c new file mode 100644 index 0000000..ed65f3b --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMA/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/DMA/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c new file mode 100644 index 0000000..af8bbf8 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c @@ -0,0 +1,173 @@ +/** + ****************************************************************************** + * @file TIM/DMABurst/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_DMABurst + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +#define TIM1_DMAR_ADDRESS ((uint32_t)0x40012C4C) /* TIM ARR (Auto Reload Register) address */ + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +GPIO_InitTypeDef GPIO_InitStructure; +DMA_InitTypeDef DMA_InitStructure; +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t SRC_Buffer[6] = {0x0FFF, 0x0000, 0x0555}; + +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* TIM1 and GPIOA clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA, ENABLE); + + /* DMA clock enable */ + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); + + /* GPIOA Configuration: Channel 1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* TIM1 DeInit */ + TIM_DeInit(TIM1); + + /* DMA1 Channel5 Config */ + DMA_DeInit(DMA1_Channel5); + + DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)TIM1_DMAR_ADDRESS; + DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)SRC_Buffer; + DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; + DMA_InitStructure.DMA_BufferSize = 3; + DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; + DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; + DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; + DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; + DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; + DMA_InitStructure.DMA_Priority = DMA_Priority_High; + DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; + DMA_Init(DMA1_Channel5, &DMA_InitStructure); + + /* Time base configuration */ + /* ----------------------------------------------------------------------- + TIM1 Configuration: generate 1 PWM signal using the DMA burst mode: + The TIM1CLK frequency is set to SystemCoreClock (Hz), to get TIM1 counter + clock at 24 MHz the Prescaler is computed as following: + - Prescaler = (TIM1CLK / TIM1 counter clock) - 1 + SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices and to 24 MHz for Low-Density Value line and + Medium-Density Value line devices + + The TIM1 period is 5.8 KHz: TIM1 Frequency = TIM1 counter clock/(ARR + 1) + = 24 MHz / 4096 = 5.8KHz KHz + TIM1 Channel1 duty cycle = (TIM1_CCR1/ TIM1_ARR)* 100 = 33.33% + ----------------------------------------------------------------------- */ + TIM_TimeBaseStructure.TIM_Period = 0xFFFF; + TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t) (SystemCoreClock / 24000000) - 1; + TIM_TimeBaseStructure.TIM_ClockDivision = 0x0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); + + /* TIM Configuration in PWM Mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 0xFFF; + TIM_OC1Init(TIM1, &TIM_OCInitStructure); + + /* TIM1 DMAR Base register and DMA Burst Length Config */ + TIM_DMAConfig(TIM1, TIM_DMABase_ARR, TIM_DMABurstLength_3Transfers); + + /* TIM1 DMA Update enable */ + TIM_DMACmd(TIM1, TIM_DMA_Update, ENABLE); + + /* TIM1 enable */ + TIM_Cmd(TIM1, ENABLE); + + /* TIM1 PWM Outputs Enable */ + TIM_CtrlPWMOutputs(TIM1, ENABLE); + + /* DMA1 Channel5 enable */ + DMA_Cmd(DMA1_Channel5, ENABLE); + + /* Wait until DMA1 Channel5 end of Transfer */ + while (!DMA_GetFlagStatus(DMA1_FLAG_TC5)) + { + } + + /* Infinite loop */ + while(1) + { + } +} + + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/readme.txt new file mode 100644 index 0000000..cdb3d47 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/readme.txt @@ -0,0 +1,101 @@ +/** + @page TIM1_DMABURST TIM1 DMA Burst transfer example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/DMABurst/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM1 DMA Burst transfer example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to update the TIM1 channel1 period and the duty cycle +using the TIM1 DMA burst feature. + +Every update DMA request, the DMA will do 3 transfers of half words into Timer +registers beginning from ARR register. +On the DMA update request, 0x0FFF will be transferred into ARR, 0x0000 +will be transferred into RCR, 0x0555 will be transferred into CCR1. + +The TIM1CLK frequency is set to SystemCoreClock (Hz), to get TIM1 counter +clock at 24 MHz the Prescaler is computed as following: + - Prescaler = (TIM1CLK / TIM1 counter clock) - 1 +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices and to 24 MHz for Value line devices. + +The TIM1 period is 5.8 KHz: TIM1 Frequency = TIM1 counter clock/(ARR + 1) + = 24 MHz / 4096 = 5.8 KHz +The TIM1 CCR1 register value is equal to 0x555, so the TIM1 Channel 1 generates a +PWM signal with a frequency equal to 5.8 KHz and a duty cycle equal to 33.33%: +TIM1 Channel1 duty cycle = (TIM1_CCR1/ TIM1_ARR + 1)* 100 = 33.33% + +The PWM waveform can be displayed using an oscilloscope. + +@note No need of RCR update, but we should do it because of the ARR and CCR1 + mapping. + + +@par Directory contents + + - TIM/DMABurst/stm32f10x_conf.h Library Configuration file + - TIM/DMABurst/stm32f10x_it.c Interrupt handlers + - TIM/DMABurst/stm32f10x_it.h Interrupt handlers header file + - TIM/DMABurst/main.c Main program + - TIM/DMABurst/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100E-EVAL, STM32100B-EVAL, STM3210C-EVAL, STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - TIM1 CH1 (PA.08) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_conf.h new file mode 100644 index 0000000..a1b5c9d --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/DMABurst/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_it.c new file mode 100644 index 0000000..d63d587 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_it.c @@ -0,0 +1,167 @@ +/** + ****************************************************************************** + * @file TIM/DMABurst/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_DMABurst + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + { + } +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + { + } +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + { + } +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + { + } +} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{ +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{ +} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{ +} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{ +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_it.h new file mode 100644 index 0000000..d8fbfd4 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/DMABurst/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/system_stm32f10x.c new file mode 100644 index 0000000..6bd940a --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/DMABurst/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/main.c new file mode 100644 index 0000000..13e96b4 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/main.c @@ -0,0 +1,288 @@ +/** + ****************************************************************************** + * @file TIM/ExtTrigger_Synchro/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_ExtTrigger_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_ICInitTypeDef TIM_ICInitStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* Configure the GPIO ports */ + GPIO_Configuration(); + + /* Timers synchronisation in cascade mode with an external trigger ----- + 1/TIM1 is configured as Master Timer: + - Toggle Mode is used + - The TIM1 Enable event is used as Trigger Output + + 2/TIM1 is configured as Slave Timer for an external Trigger connected + to TIM1 TI2 pin (TIM1 CH2 configured as input pin): + - The TIM1 TI2FP2 is used as Trigger Input + - Rising edge is used to start and stop the TIM1: Gated Mode. + + 3/TIM3 is slave for TIM1 and Master for TIM4, + - Toggle Mode is used + - The ITR1(TIM1) is used as input trigger + - Gated mode is used, so start and stop of slave counter + are controlled by the Master trigger output signal(TIM1 enable event). + - The TIM3 enable event is used as Trigger Output. + + 4/TIM4 is slave for TIM3, + - Toggle Mode is used + - The ITR2(TIM3) is used as input trigger + - Gated mode is used, so start and stop of slave counter + are controlled by the Master trigger output signal(TIM3 enable event). + + * For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHZ, the Prescaler is equal to 2 so the TIMx clock + counter is equal to 24 MHz. + The Three Timers are running at: + TIMx frequency = TIMx clock counter/ 2*(TIMx_Period + 1) = 162.1 KHz. + + * For Low-Density Value line and Medium-Density Value line devices: + The TIMxCLK is fixed to 24 MHz, the Prescaler is equal to 2 so the TIMx clock + counter is equal to 8 MHz. + TIMx frequency = TIMx clock counter/ 2*(TIMx_Period + 1) = 54 KHz. + + The starts and stops of the TIM1 counters are controlled by the + external trigger. + The TIM3 starts and stops are controlled by the TIM1, and the TIM4 + starts and stops are controlled by the TIM3. + -------------------------------------------------------------------- */ + + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 73; + TIM_TimeBaseStructure.TIM_Prescaler = 2; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); + + TIM_TimeBaseStructure.TIM_Period = 73; + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + TIM_TimeBaseStructure.TIM_Period = 73; + TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); + + /* Master Configuration in Toggle Mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 64; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM1, &TIM_OCInitStructure); + + /* TIM1 Input Capture Configuration */ + TIM_ICInitStructure.TIM_Channel = TIM_Channel_2; + TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; + TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; + TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; + TIM_ICInitStructure.TIM_ICFilter = 0; + + TIM_ICInit(TIM1, &TIM_ICInitStructure); + + /* TIM1 Input trigger configuration: External Trigger connected to TI2 */ + TIM_SelectInputTrigger(TIM1, TIM_TS_TI2FP2); + TIM_SelectSlaveMode(TIM1, TIM_SlaveMode_Gated); + + /* Select the Master Slave Mode */ + TIM_SelectMasterSlaveMode(TIM1, TIM_MasterSlaveMode_Enable); + + /* Master Mode selection: TIM1 */ + TIM_SelectOutputTrigger(TIM1, TIM_TRGOSource_Enable); + + /* Slaves Configuration: Toggle Mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + TIM_OC1Init(TIM4, &TIM_OCInitStructure); + + /* Slave Mode selection: TIM3 */ + TIM_SelectInputTrigger(TIM3, TIM_TS_ITR0); + TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Gated); + + /* Select the Master Slave Mode */ + TIM_SelectMasterSlaveMode(TIM3, TIM_MasterSlaveMode_Enable); + + /* Master Mode selection: TIM3 */ + TIM_SelectOutputTrigger(TIM3, TIM_TRGOSource_Enable); + + /* Slave Mode selection: TIM4 */ + TIM_SelectInputTrigger(TIM4, TIM_TS_ITR2); + TIM_SelectSlaveMode(TIM4, TIM_SlaveMode_Gated); + + /* TIM1 Main Output Enable */ + TIM_CtrlPWMOutputs(TIM1, ENABLE); + + /* TIM enable counter */ + TIM_Cmd(TIM1, ENABLE); + TIM_Cmd(TIM3, ENABLE); + TIM_Cmd(TIM4, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM1, TIM3 and TIM4 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3 | + RCC_APB1Periph_TIM4, ENABLE); + + /* TIM1, GPIOA, GPIOE, GPIOC and GPIOB clocks enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | + RCC_APB2Periph_GPIOE | RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the GPIO Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; +#ifdef STM32F10X_CL + /* GPIOE Configuration: Channel 1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + /* GPIOE Configuration: Channel 2 as Input floating */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + /* TIM1 Full remapping pins */ + GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE); + + /*GPIOB Configuration: TIM3 channel1, 2, 3 and 4 */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); + + /* GPIOB Configuration: PB.06(TIM4 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + + GPIO_Init(GPIOB, &GPIO_InitStructure); + +#else + /* GPIOA Configuration: PA.08(TIM1 CH1) and PA.06(TIM3 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: PB.06(TIM4 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + + GPIO_Init(GPIOB, &GPIO_InitStructure); + + /* GPIOA Configuration: PA.09(TIM1 CH2) */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + + GPIO_Init(GPIOA, &GPIO_InitStructure); + +#endif + +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/readme.txt new file mode 100644 index 0000000..cb3db14 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/readme.txt @@ -0,0 +1,138 @@ +/** + @page TIM_ExtTrigger_Synchro TIM External Trigger Synchro example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/ExtTrigger_Synchro/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM External Trigger Synchro example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to synchronize TIM peripherals in cascade mode with an +external trigger. +In this example three timers are used: + +1/TIM1 is configured as Master Timer: + - Toggle Mode is used + - The TIM1 Enable event is used as Trigger Output + +2/TIM1 is configured as Slave Timer for an external Trigger connected to TIM1 + TI2 pin (TIM1 CH2 configured as input pin): + - The TIM1 TI2FP2 is used as Trigger Input + - Rising edge is used to start and stop the TIM1: Gated Mode. + +3/TIM3 is slave for TIM1 and Master for TIM4, + - Toggle Mode is used + - The ITR1(TIM1) is used as input trigger + - Gated mode is used, so start and stop of slave counter + are controlled by the Master trigger output signal(TIM1 enable event). + - The TIM3 enable event is used as Trigger Output. + +4/TIM4 is slave for TIM3, + - Toggle Mode is used + - The ITR2(TIM3) is used as input trigger + - Gated mode is used, so start and stop of slave counter + are controlled by the Master trigger output signal(TIM3 enable event). + + * For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHZ, the Prescaler is equal to 2 so the TIMx clock + counter is equal to 24 MHz. + The Three Timers are running at: + TIMx frequency = TIMx clock counter/ 2*(TIMx_Period + 1) = 162.1 KHz. + + * For Low-Density Value line, Medium-Density Value line and High-Density Value line devices: + The TIMxCLK is fixed to 24 MHz, the Prescaler is equal to 2 so the TIMx clock + counter is equal to 8 MHz. + TIMx frequency = TIMx clock counter/ 2*(TIMx_Period + 1) = 54 KHz. + +The starts and stops of the TIM1 counters are controlled by the external trigger. +The TIM3 starts and stops are controlled by the TIM1, and the TIM4 starts and +stops are controlled by the TIM3. + +@par Directory contents + + - TIM/ExtTrigger_Synchro/stm32f10x_conf.h Library Configuration file + - TIM/ExtTrigger_Synchro/stm32f10x_it.c Interrupt handlers + - TIM/ExtTrigger_Synchro/stm32f10x_it.h Interrupt handlers header file + - TIM/ExtTrigger_Synchro/main.c Main program + - TIM/ExtTrigger_Synchro/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100B-EVAL Set-up + - Connect an external trigger, with a frequency <= xx KHz, to the TIM1 CH2 + pin (PA.09). In this example the frequency is equal to x KHz. + + - Connect the following pins to an oscilloscope to monitor the different waveforms: + - TIM1 CH1 (PA.08) + - TIM3 CH1 (PA.06) + - TIM4 CH1 (PB.06) + + - STM3210C-EVAL Set-up + - Connect an external trigger, with a frequency <= 40KHz, to the TIM1 CH2 + pin (PE.11). In this example the frequency is equal to 5 KHz. + + - Connect the following pins to an oscilloscope to monitor the different waveforms: + - TIM1 CH1 (PE.09) + - TIM3 CH1 (PC.06) + - TIM4 CH1 (PB.06) + + - STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up + - Connect an external trigger, with a frequency <= 40KHz, to the TIM1 CH2 + pin (PA.09). In this example the frequency is equal to 5 KHz. + + - Connect the following pins to an oscilloscope to monitor the different waveforms: + - TIM1 CH1 (PA.08) + - TIM3 CH1 (PA.06) + - TIM4 CH1 (PB.06) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_conf.h new file mode 100644 index 0000000..2481540 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/ExtTrigger_Synchro/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_it.c new file mode 100644 index 0000000..a0540f0 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_it.c @@ -0,0 +1,159 @@ +/** + ****************************************************************************** + * @file TIM/ExtTrigger_Synchro/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_ExtTrigger_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void TPPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_it.h new file mode 100644 index 0000000..fa673a8 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/ExtTrigger_Synchro/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/system_stm32f10x.c new file mode 100644 index 0000000..cea3764 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/ExtTrigger_Synchro/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/ExtTrigger_Synchro/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/main.c new file mode 100644 index 0000000..2eaa2c5 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/main.c @@ -0,0 +1,168 @@ +/** + ****************************************************************************** + * @file TIM/InputCapture/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_Input_Capture + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_ICInitTypeDef TIM_ICInitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void NVIC_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* NVIC configuration */ + NVIC_Configuration(); + + /* Configure the GPIO ports */ + GPIO_Configuration(); + + /* TIM3 configuration: Input Capture mode --------------------- + The external signal is connected to TIM3 CH2 pin (PA.07) + The Rising edge is used as active edge, + The TIM3 CCR2 is used to compute the frequency value + ------------------------------------------------------------ */ + + TIM_ICInitStructure.TIM_Channel = TIM_Channel_2; + TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; + TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; + TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; + TIM_ICInitStructure.TIM_ICFilter = 0x0; + + TIM_ICInit(TIM3, &TIM_ICInitStructure); + + /* TIM enable counter */ + TIM_Cmd(TIM3, ENABLE); + + /* Enable the CC2 Interrupt Request */ + TIM_ITConfig(TIM3, TIM_IT_CC2, ENABLE); + + while (1); +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM3 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); + + /* GPIOA and GPIOB clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); +} + +/** + * @brief Configure the GPIOD Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* TIM3 channel 2 pin (PA.07) configuration */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); +} + +/** + * @brief Configure the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable the TIM3 global Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/readme.txt new file mode 100644 index 0000000..7e3f72b --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/readme.txt @@ -0,0 +1,95 @@ +/** + @page TIM_Input_Capture TIM Input Capture example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/InputCapture/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM Input Capture example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to use the TIM peripheral to measure the frequency of an +external signal. + +The TIMxCLK frequency is set to SystemCoreClock (Hz), the Prescaler is 0 so the +TIM3 counter clock is SystemCoreClock (Hz). +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices. For Low-Density Value line and Medium-Density +Value line devices, SystemCoreClock is set to 24 MHz. + +TIM3 is configured in Input Capture Mode: the external signal is connected to +TIM3 Channel2 used as input pin. +To measure the frequency we use the TIM3 CC2 interrupt request, +so In the TIM3_IRQHandler routine, the frequency of the external signal is computed. +The "TIM3Freq" variable contains the external signal frequency: +TIM3Freq = TIM3 counter clock / Capture in Hz, +where the Capture is the difference between two consecutive TIM3 captures. + +For Low-density, Medium-density, High-density and Connectivity line devices, +the minimum frequency value to measure is 1100 Hz. +For Low-Density Value line, Medium-Density and High-Density Value line devices, +the minimum frequency value to measure is 366 Hz. + +@par Directory contents + + - TIM/InputCapture/stm32f10x_conf.h Library Configuration file + - TIM/InputCapture/stm32f10x_it.c Interrupt handlers + - TIM/InputCapture/stm32f10x_it.h Interrupt handlers header file + - TIM/InputCapture/main.c Main program + - TIM/InputCapture/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100E-EVAL, STM32100B-EVAL, STM3210C-EVAL, STM3210E-EVAL and STM3210B-EVAL Set-up + - Connect the external signal to measure to the TIM3 CH2 pin (PA.07). + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_conf.h new file mode 100644 index 0000000..a1620b0 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/InputCapture/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_it.c new file mode 100644 index 0000000..61a3258 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_it.c @@ -0,0 +1,205 @@ +/** + ****************************************************************************** + * @file TIM/InputCapture/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_Input_Capture + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +__IO uint16_t IC3ReadValue1 = 0, IC3ReadValue2 = 0; +__IO uint16_t CaptureNumber = 0; +__IO uint32_t Capture = 0; +__IO uint32_t TIM3Freq = 0; + +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/******************************************************************************/ +/** + * @brief This function handles TIM3 global interrupt request. + * @param None + * @retval None + */ +void TIM3_IRQHandler(void) +{ + if(TIM_GetITStatus(TIM3, TIM_IT_CC2) == SET) + { + /* Clear TIM3 Capture compare interrupt pending bit */ + TIM_ClearITPendingBit(TIM3, TIM_IT_CC2); + if(CaptureNumber == 0) + { + /* Get the Input Capture value */ + IC3ReadValue1 = TIM_GetCapture2(TIM3); + CaptureNumber = 1; + } + else if(CaptureNumber == 1) + { + /* Get the Input Capture value */ + IC3ReadValue2 = TIM_GetCapture2(TIM3); + + /* Capture computation */ + if (IC3ReadValue2 > IC3ReadValue1) + { + Capture = (IC3ReadValue2 - IC3ReadValue1); + } + else + { + Capture = ((0xFFFF - IC3ReadValue1) + IC3ReadValue2); + } + /* Frequency computation */ + TIM3Freq = (uint32_t) SystemCoreClock / Capture; + CaptureNumber = 0; + } + } +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_it.h new file mode 100644 index 0000000..8ad4cc3 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_it.h @@ -0,0 +1,47 @@ +/** + ****************************************************************************** + * @file TIM/InputCapture/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); +void TIM3_IRQHandler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/system_stm32f10x.c new file mode 100644 index 0000000..4b41133 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/InputCapture/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/main.c new file mode 100644 index 0000000..8691aa2 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/main.c @@ -0,0 +1,235 @@ +/** + ****************************************************************************** + * @file TIM/OCActive/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OCActive + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t CCR1_Val = 1000; +uint16_t CCR2_Val = 500; +uint16_t CCR3_Val = 250; +uint16_t CCR4_Val = 125; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* Configure the GPIO ports */ + GPIO_Configuration(); + + /* --------------------------------------------------------------- + TIM3 Configuration: + TIM3CLK = SystemCoreClock / 2, + The objective is to get TIM3 counter clock at 1 KHz: + - Prescaler = (TIM3CLK / TIM3 counter clock) - 1 + And generate 4 signals with 4 different delays: + TIM3_CH1 delay = CCR1_Val/TIM3 counter clock = 1000 ms + TIM3_CH2 delay = CCR2_Val/TIM3 counter clock = 500 ms + TIM3_CH3 delay = CCR3_Val/TIM3 counter clock = 250 ms + TIM3_CH4 delay = CCR4_Val/TIM3 counter clock = 125 ms + + * SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices and to 24 MHz for Low-Density Value line and + Medium-Density Value line devices + --------------------------------------------------------------- */ + /*Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 2000) - 1; + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 65535; + TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + /* Output Compare Active Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Active; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1_Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Disable); + + /* Output Compare Active Mode configuration: Channel2 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR2_Val; + + TIM_OC2Init(TIM3, &TIM_OCInitStructure); + + TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Disable); + + /* Output Compare Active Mode configuration: Channel3 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR3_Val; + + TIM_OC3Init(TIM3, &TIM_OCInitStructure); + + TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Disable); + + /* Output Compare Active Mode configuration: Channel4 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR4_Val; + + TIM_OC4Init(TIM3, &TIM_OCInitStructure); + + TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Disable); + + TIM_ARRPreloadConfig(TIM3, ENABLE); + +#ifdef STM32F10X_CL + /* Set PD.07 pin */ + GPIO_SetBits(GPIOD, GPIO_Pin_7); +#else + /* Set PC.06 pin */ + GPIO_SetBits(GPIOC, GPIO_Pin_6); +#endif + + /* TIM3 enable counter */ + TIM_Cmd(TIM3, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* PCLK1 = HCLK/4 */ + RCC_PCLK1Config(RCC_HCLK_Div4); + + /* TIM3 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); + + /* GPIOA and GPIOC clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOB | + RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the TIM3 and the GPIOE Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /*GPIOB Configuration: TIM3 channel1, 2, 3 and 4 */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); + + /* GPIOD Configuration: Pin7 an Output push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; + + GPIO_Init(GPIOD, &GPIO_InitStructure); +#else + /* GPIOA Configuration:TIM3 Channel1, 2, 3 and 4 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); + + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1; + GPIO_Init(GPIOB, &GPIO_InitStructure); + + /* GPIOC Configuration: Pin6 an Output push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; + + GPIO_Init(GPIOC, &GPIO_InitStructure); +#endif +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/readme.txt new file mode 100644 index 0000000..e285817 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/readme.txt @@ -0,0 +1,123 @@ +/** + @page TIM_OCActive TIM OC Active example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/OCActive/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM OC Active example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM peripheral to generate four different +signals with four different delays. + +The TIM3CLK frequency is set to SystemCoreClock / 2 (Hz), and the objective is +to get TIM3 counter clock at 1 KHz so the Prescaler is computed as following: + - Prescaler = (TIM3CLK / TIM3 counter clock) - 1 +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices and to 24 MHz for Low-Density Value line, +Medium-Density Value line and High-Density Value line devices. + +The TIM3 CCR1 register value is equal to 1000: +TIM3_CH1 delay = CCR1_Val/TIM3 counter clock = 1000 ms +so the TIM3 Channel 1 generates a signal with a delay equal to 1000 ms. + +The TIM3 CCR2 register value is equal to 500: +TIM3_CH2 delay = CCR2_Val/TIM3 counter clock = 500 ms +so the TIM3 Channel 2 generates a signal with a delay equal to 500 ms. + +The TIM3 CCR3 register value is equal to 250: +TIM3_CH3 delay = CCR3_Val/TIM3 counter clock = 250 ms +so the TIM3 Channel 3 generates a signal with a delay equal to 250 ms. + +The TIM3 CCR4 register value is equal to 125: +TIM3_CH4 delay = CCR4_Val/TIM3 counter clock = 125 ms +so the TIM3 Channel 4 generates a signal with a delay equal to 125 ms. + +The delay correspond to the time difference between PC.06 and +TIM3_CHx signal rising edges in case of STM32100E-EVAL, STM32100B-EVAL, STM3210E-EVAL +and STM3210B-EVAL + +The delay correspond to the time difference between PD.07 and +TIM3_CHx signal rising edges in case of STM3210C-EVAL + +@par Directory contents + + - TIM/OCActive/stm32f10x_conf.h Library Configuration file + - TIM/OCActive/stm32f10x_it.c Interrupt handlers + - TIM/OCActive/stm32f10x_it.h Interrupt handlers header file + - TIM/OCActive/main.c Main program + - TIM/OCActive/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + + - STM3210C-EVAL Set-up + - Connect the TIM3 pins(TIM3 full remapped pins) to an oscilloscope to + monitor the different waveforms: + - PD.07 + - PC.06 (TIM3_CH1) + - PC.07 (TIM3_CH2) + - PC.08 (TIM3_CH3) + - PC.09 (TIM3_CH4) + + - STM32100E-EVAL, STM32100B-EVAL, STM3210E-EVAL and STM3210B-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - PC.06 + - PA.06 (TIM3_CH1) + - PA.07 (TIM3_CH2) + - PB.00 (TIM3_CH3) + - PB.01 (TIM3_CH4) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_conf.h new file mode 100644 index 0000000..df1947d --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/OCActive/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_it.c new file mode 100644 index 0000000..822ef7d --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_it.c @@ -0,0 +1,159 @@ +/** + ****************************************************************************** + * @file TIM/OCActive/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OCActive + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_it.h new file mode 100644 index 0000000..8dd2f45 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/OCActive/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/system_stm32f10x.c new file mode 100644 index 0000000..0f6a448 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCActive/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/OCActive/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/main.c new file mode 100644 index 0000000..98e6bc1 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/main.c @@ -0,0 +1,229 @@ +/** + ****************************************************************************** + * @file TIM/OCInactive/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OCInactive + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t CCR1_Val = 1000; +uint16_t CCR2_Val = 500; +uint16_t CCR3_Val = 250; +uint16_t CCR4_Val = 125; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void NVIC_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* NVIC Configuration */ + NVIC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* --------------------------------------------------------------- + TIM2 Configuration: + TIM2CLK = SystemCoreClock / 2, + The objective is to get TIM2 counter clock at 1 KHz: + - Prescaler = (TIM2CLK / TIM2 counter clock) - 1 + And generate 4 signals with 4 different delays: + TIM2_CH1 delay = CCR1_Val/TIM2 counter clock = 1000 ms + TIM2_CH2 delay = CCR2_Val/TIM2 counter clock = 500 ms + TIM2_CH3 delay = CCR3_Val/TIM2 counter clock = 250 ms + TIM2_CH4 delay = CCR4_Val/TIM2 counter clock = 125 ms + + * SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices and to 24 MHz for Low-Density Value line and + Medium-Density Value line devices + --------------------------------------------------------------- */ + /* Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 2000) - 1; + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 65535; + TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); + + /* Output Compare Active Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Inactive; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1_Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM2, &TIM_OCInitStructure); + + TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Disable); + + /* Output Compare Active Mode configuration: Channel2 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR2_Val; + + TIM_OC2Init(TIM2, &TIM_OCInitStructure); + + TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Disable); + + /* Output Compare Active Mode configuration: Channel3 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR3_Val; + + TIM_OC3Init(TIM2, &TIM_OCInitStructure); + + TIM_OC3PreloadConfig(TIM2, TIM_OCPreload_Disable); + + /* Output Compare Active Mode configuration: Channel4 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR4_Val; + + TIM_OC4Init(TIM2, &TIM_OCInitStructure); + + TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Disable); + + TIM_ARRPreloadConfig(TIM2, ENABLE); + + /* TIM IT enable */ + TIM_ITConfig(TIM2, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4, ENABLE); + + /* Set PC.06, PC.07, PC.08 and PC.09 pins */ + GPIO_SetBits(GPIOC, GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9); + + /* TIM2 enable counter */ + TIM_Cmd(TIM2, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* PCLK1 = HCLK/4 */ + RCC_PCLK1Config(RCC_HCLK_Div4); + + /* TIM2 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); + + /* GPIOC clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); +} + +/** + * @brief Configure the GPIOD Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* GPIOC Configuration: Pin6, 7, 8 and 9 as output push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); +} + +/** + * @brief Configure the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable the TIM2 Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + + NVIC_Init(&NVIC_InitStructure); + +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/readme.txt new file mode 100644 index 0000000..c0ea6a0 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/readme.txt @@ -0,0 +1,109 @@ +/** + @page TIM_OCInactive TIM OC Inactive example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/OCInactive/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM OC Inactive example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM peripheral in Output Compare Inactive +mode with the corresponding Interrupt requests for each channel. + +The TIM2CLK frequency is set to SystemCoreClock / 2 (Hz), and the objective is +to get TIM2 counter clock at 1 KHz so the Prescaler is computed as following: + - Prescaler = (TIM2CLK / TIM2 counter clock) - 1 +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices and to 24 MHz for Value line devices. + +The TIM2 CCR1 register value is equal to 1000: +TIM2_CC1 delay = CCR1_Val/TIM2 counter clock = 1000 ms +so the PC.06 is reset after a delay equal to 1000 ms. + +The TIM2 CCR2 register value is equal to 500: +TIM2_CC2 delay = CCR2_Val/TIM2 counter clock = 500 ms +so the PC.07 is reset after a delay equal to 500 ms. + +The TIM2 CCR3 register value is equal to 250: +TIM2_CC3 delay = CCR3_Val/TIM2 counter clock = 250 ms +so the PC.08 is reset after a delay equal to 250 ms. + +The TIM2 CCR4 register value is equal to 125: +TIM2_CC4 delay = CCR4_Val/TIM2 counter clock = 125 ms +so the PC.09 is reset after a delay equal to 125 ms. + +While the counter is lower than the Output compare registers values, which +determines the Output delay, the PC.06, PC.07, PC.08 and PC.09 pin are turned on. + +When the counter value reaches the Output compare registers values, the Output +Compare interrupts are generated and, in the handler routine, these pins are turned off. + +@par Directory contents + + - TIM/OCInactive/stm32f10x_conf.h Library Configuration file + - TIM/OCInactive/stm32f10x_it.c Interrupt handlers + - TIM/OCInactive/stm32f10x_it.h Interrupt handlers header file + - TIM/OCInactive/main.c Main program + - TIM/OCInactive/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100B-EVAL, STM3210E-EVAL, STM32100E-EVAL STM3210B-EVAL and STM3210C-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - PC.06 + - PC.07 + - PC.08 + - PC.09 + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_conf.h new file mode 100644 index 0000000..156e993 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/OCInactive/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_it.c new file mode 100644 index 0000000..a6d417f --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_it.c @@ -0,0 +1,204 @@ +/** + ****************************************************************************** + * @file TIM/OCInactive/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OCInactive + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles TIM2 global interrupt request. + * @param None + * @retval None + */ +void TIM2_IRQHandler(void) +{ + if (TIM_GetITStatus(TIM2, TIM_IT_CC1) != RESET) + { + /* Clear TIM2 Capture Compare1 interrupt pending bit*/ + TIM_ClearITPendingBit(TIM2, TIM_IT_CC1); + + /* PC.06 turnoff after 1000 ms */ + GPIO_ResetBits(GPIOC, GPIO_Pin_6); + } + else if (TIM_GetITStatus(TIM2, TIM_IT_CC2) != RESET) + { + /* Clear TIM2 Capture Compare2 interrupt pending bit*/ + TIM_ClearITPendingBit(TIM2, TIM_IT_CC2); + + /* PC.07 turnoff after 500 ms */ + GPIO_ResetBits(GPIOC, GPIO_Pin_7); + } + else if (TIM_GetITStatus(TIM2, TIM_IT_CC3) != RESET) + { + /* Clear TIM2 Capture Compare3 interrupt pending bit*/ + TIM_ClearITPendingBit(TIM2, TIM_IT_CC3); + + /* PC.08 turnoff after 250 ms */ + GPIO_ResetBits(GPIOC, GPIO_Pin_8); + } + else + { + /* Clear TIM2 Capture Compare4 interrupt pending bit*/ + TIM_ClearITPendingBit(TIM2, TIM_IT_CC4); + + /* PC.09 turnoff after 125 ms */ + GPIO_ResetBits(GPIOC, GPIO_Pin_9); + } +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_it.h new file mode 100644 index 0000000..02716ff --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/stm32f10x_it.h @@ -0,0 +1,47 @@ +/** + ****************************************************************************** + * @file TIM/OCInactive/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); +void TIM2_IRQHandler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/system_stm32f10x.c new file mode 100644 index 0000000..019413e --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCInactive/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/OCInactive/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/main.c new file mode 100644 index 0000000..5498f0f --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/main.c @@ -0,0 +1,233 @@ +/** + ****************************************************************************** + * @file TIM/OCToggle/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OCToggle + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +__IO uint16_t CCR1_Val = 32768; +__IO uint16_t CCR2_Val = 16384; +__IO uint16_t CCR3_Val = 8192; +__IO uint16_t CCR4_Val = 4096; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void NVIC_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* NVIC Configuration */ + NVIC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* --------------------------------------------------------------------------- + TIM3 Configuration: Output Compare Toggle Mode: + TIM3CLK = SystemCoreClock / 2, + The objective is to get TIM3 counter clock at 12 MHz: + - Prescaler = (TIM3CLK / TIM3 counter clock) - 1 + CC1 update rate = TIM3 counter clock / CCR1_Val = 366.2 Hz + CC2 update rate = TIM3 counter clock / CCR2_Val = 732.4 Hz + CC3 update rate = TIM3 counter clock / CCR3_Val = 1464.8 Hz + CC4 update rate = TIM3 counter clock / CCR4_Val = 2929.6 Hz + ----------------------------------------------------------------------------*/ + /* Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1; + + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 65535; + TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + /* Output Compare Toggle Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1_Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Disable); + + /* Output Compare Toggle Mode configuration: Channel2 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR2_Val; + + TIM_OC2Init(TIM3, &TIM_OCInitStructure); + + TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Disable); + + /* Output Compare Toggle Mode configuration: Channel3 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR3_Val; + + TIM_OC3Init(TIM3, &TIM_OCInitStructure); + + TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Disable); + + /* Output Compare Toggle Mode configuration: Channel4 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR4_Val; + + TIM_OC4Init(TIM3, &TIM_OCInitStructure); + + TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Disable); + + /* TIM enable counter */ + TIM_Cmd(TIM3, ENABLE); + + /* TIM IT enable */ + TIM_ITConfig(TIM3, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* PCLK1 = HCLK/4 */ + RCC_PCLK1Config(RCC_HCLK_Div4); + + /* TIM3 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); + + /* GPIOA clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB| + RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the TIM3 Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /*GPIOB Configuration: TIM3 channel1, 2, 3 and 4 */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); + +#else + /* GPIOA Configuration:TIM3 Channel1, 2, 3 and 4 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); + + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1; + GPIO_Init(GPIOB, &GPIO_InitStructure); +#endif +} + +/** + * @brief Configure the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable the TIM3 global Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/readme.txt new file mode 100644 index 0000000..06d8bb6 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/readme.txt @@ -0,0 +1,113 @@ +/** + @page TIM_OCToggle TIM OC Toggle example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/OCToggle/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM OC Toggle example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM3 peripheral to generate four different +signals with four different frequencies. + +The TIM3CLK frequency is set to SystemCoreClock / 2 (Hz), and we want to get TIM3 +counter clock at 12 MHz so the Prescaler is computed as following: + - Prescaler = (TIM3CLK / TIM3 counter clock) - 1 +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices and to 24 MHz for Low-Density Value line, +Medium-Density Value line and High-Density devices. + +The TIM3 CCR1 register value is equal to 32768: +CC1 update rate = TIM3 counter clock / CCR1_Val = 366.2 Hz, +so the TIM3 Channel 1 generates a periodic signal with a frequency equal to 183.1 Hz. + +The TIM3 CCR2 register is equal to 16384: +CC2 update rate = TIM3 counter clock / CCR2_Val = 732.4 Hz +so the TIM3 channel 2 generates a periodic signal with a frequency equal to 366.3 Hz. + +The TIM3 CCR3 register is equal to 8192: +CC3 update rate = TIM3 counter clock / CCR3_Val = 1464.8 Hz +so the TIM3 channel 3 generates a periodic signal with a frequency equal to 732.4 Hz. + +The TIM3 CCR4 register is equal to 4096: +CC4 update rate = TIM3 counter clock / CCR4_Val = 2929.6 Hz +so the TIM3 channel 4 generates a periodic signal with a frequency equal to 1464.8 Hz. + +@par Directory contents + + - TIM/OCToggle/stm32f10x_conf.h Library Configuration file + - TIM/OCToggle/stm32f10x_it.c Interrupt handlers + - TIM/OCToggle/stm32f10x_it.h Interrupt handlers header file + - TIM/OCToggle/main.c Main program + - TIM/OCToggle/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + + - STM3210C-EVAL Set-up + - Connect the TIM1 pins(TIM3 full remapped pins) to an oscilloscope to monitor + the different waveforms: + - PC.06 (TIM3_CH1) + - PC.07 (TIM3_CH2) + - PC.08 (TIM3_CH3) + - PC.09 (TIM3_CH4) + + - STM32100B-EVAL, STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - PA.06 (TIM3_CH1) + - PA.07 (TIM3_CH2) + - PB.00 (TIM3_CH3) + - PB.01 (TIM3_CH4) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_conf.h new file mode 100644 index 0000000..47fca7d --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/OCToggle/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_it.c new file mode 100644 index 0000000..a5bac39 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_it.c @@ -0,0 +1,209 @@ +/** + ****************************************************************************** + * @file TIM/OCToggle/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OCToggle + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +uint16_t capture = 0; +extern __IO uint16_t CCR1_Val; +extern __IO uint16_t CCR2_Val; +extern __IO uint16_t CCR3_Val; +extern __IO uint16_t CCR4_Val; + +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles TIM3 global interrupt request. + * @param None + * @retval None + */ +void TIM3_IRQHandler(void) +{ + /* TIM3_CH1 toggling with frequency = 183.1 Hz */ + if (TIM_GetITStatus(TIM3, TIM_IT_CC1) != RESET) + { + TIM_ClearITPendingBit(TIM3, TIM_IT_CC1 ); + capture = TIM_GetCapture1(TIM3); + TIM_SetCompare1(TIM3, capture + CCR1_Val ); + } + + /* TIM3_CH2 toggling with frequency = 366.2 Hz */ + if (TIM_GetITStatus(TIM3, TIM_IT_CC2) != RESET) + { + TIM_ClearITPendingBit(TIM3, TIM_IT_CC2); + capture = TIM_GetCapture2(TIM3); + TIM_SetCompare2(TIM3, capture + CCR2_Val); + } + + /* TIM3_CH3 toggling with frequency = 732.4 Hz */ + if (TIM_GetITStatus(TIM3, TIM_IT_CC3) != RESET) + { + TIM_ClearITPendingBit(TIM3, TIM_IT_CC3); + capture = TIM_GetCapture3(TIM3); + TIM_SetCompare3(TIM3, capture + CCR3_Val); + } + + /* TIM3_CH4 toggling with frequency = 1464.8 Hz */ + if (TIM_GetITStatus(TIM3, TIM_IT_CC4) != RESET) + { + TIM_ClearITPendingBit(TIM3, TIM_IT_CC4); + capture = TIM_GetCapture4(TIM3); + TIM_SetCompare4(TIM3, capture + CCR4_Val); + } +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_it.h new file mode 100644 index 0000000..93e159b --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/stm32f10x_it.h @@ -0,0 +1,47 @@ +/** + ****************************************************************************** + * @file TIM/OCToggle/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); +void TIM3_IRQHandler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/system_stm32f10x.c new file mode 100644 index 0000000..d53ad96 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OCToggle/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/OCToggle/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/main.c new file mode 100644 index 0000000..75ccc2f --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/main.c @@ -0,0 +1,198 @@ +/** + ****************************************************************************** + * @file TIM/OnePulse/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OnePulse + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_ICInitTypeDef TIM_ICInitStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* Configure the GPIO ports */ + GPIO_Configuration(); + + /* TIM4 configuration: One Pulse mode ------------------------ + The external signal is connected to TIM4_CH2 pin (PB.07), + The Rising edge is used as active edge, + The One Pulse signal is output on TIM4_CH1 pin (PB.06) + The TIM_Pulse defines the delay value + The (TIM_Period - TIM_Pulse) defines the One Pulse value. + TIM2CLK = SystemCoreClock, we want to get TIM2 counter clock at 24 MHz: + - Prescaler = (TIM2CLK / TIM2 counter clock) - 1 + The Autoreload value is 65535 (TIM4->ARR), so the maximum frequency value + to trigger the TIM4 input is 24000000/65535 = 300 Hz. + + The TIM_Pulse defines the delay value, the delay value is fixed + to 682.6 us: + delay = CCR1/TIM4 counter clock = 682.6 us. + The (TIM_Period - TIM_Pulse) defines the One Pulse value, + the pulse value is fixed to 2.048 ms: + One Pulse value = (TIM_Period - TIM_Pulse) / TIM4 counter clock = 2.048 ms. + + * SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices and to 24 MHz for Value line devices + ------------------------------------------------------------ */ + + /* Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1; + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 65535; + TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); + + /* TIM4 PWM2 Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 16383; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM4, &TIM_OCInitStructure); + + /* TIM4 configuration in Input Capture Mode */ + + TIM_ICStructInit(&TIM_ICInitStructure); + + TIM_ICInitStructure.TIM_Channel = TIM_Channel_2; + TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; + TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; + TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; + TIM_ICInitStructure.TIM_ICFilter = 0; + + TIM_ICInit(TIM4, &TIM_ICInitStructure); + + /* One Pulse Mode selection */ + TIM_SelectOnePulseMode(TIM4, TIM_OPMode_Single); + + /* Input Trigger selection */ + TIM_SelectInputTrigger(TIM4, TIM_TS_TI2FP2); + + /* Slave Mode selection: Trigger Mode */ + TIM_SelectSlaveMode(TIM4, TIM_SlaveMode_Trigger); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM4 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); + + /* GPIOB clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); +} + +/** + * @brief Configure the GPIOD Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* TIM4_CH1 pin (PB.06) configuration */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOB, &GPIO_InitStructure); + + /* TIM4_CH2 pin (PB.07) configuration */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + + GPIO_Init(GPIOB, &GPIO_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/readme.txt new file mode 100644 index 0000000..2c01dca --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/readme.txt @@ -0,0 +1,97 @@ +/** + @page TIM_OnePulse TIM One Pulse example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/OnePulse/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM One Pulse example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to use the TIM peripheral to generate a One pulse Mode +after a Rising edge of an external signal is received in Timer Input pin. + +TIM2CLK = SystemCoreClock, we want to get TIM2 counter clock at 24 MHz: + - Prescaler = (TIM2CLK / TIM2 counter clock) - 1 +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices and to 24 MHz for Low-Density Value line, +Medium-Density Value line and High-Density devices. + +The Autoreload value is 65535 (TIM4->ARR), so the maximum frequency value to +trigger the TIM4 input is 24000000/65535 = 300 Hz. + +The TIM4 is configured as follows: +The One Pulse mode is used, the external signal is connected to TIM4 CH2 pin (PB.07), +the rising edge is used as active edge, the One Pulse signal is output +on TIM4_CH1 (PB.06). + +The TIM_Pulse defines the delay value, the delay value is fixed to: +delay = CCR1/TIM4 counter clock = 16383 / 24000000 = 682.6 us. +The (TIM_Period - TIM_Pulse) defines the One Pulse value, the pulse value is fixed to: +One Pulse value = (TIM_Period - TIM_Pulse)/TIM4 counter clock + = (65535 - 16383) / 24000000 = 2.048 ms. + +@par Directory contents + + - TIM/OnePulse/stm32f10x_conf.h Library Configuration file + - TIM/OnePulse/stm32f10x_it.c Interrupt handlers + - TIM/OnePulse/stm32f10x_it.h Interrupt handlers header file + - TIM/OnePulse/main.c Main program + - TIM/OnePulse/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100B-EVAL, STM3210E-EVAL, STM3210B-EVAL, STM32100E-EVAL and STM3210C-EVAL Set-up + - Connect the external signal to the TIM4_CH2 pin (PB.07) + - Connect the TIM4_CH1 (PB.06) pin to an oscilloscope to monitor the waveform. + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_conf.h new file mode 100644 index 0000000..e93a14c --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/OnePulse/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_it.c new file mode 100644 index 0000000..623bf36 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_it.c @@ -0,0 +1,158 @@ +/** + ****************************************************************************** + * @file TIM/OnePulse/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_OnePulse + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_it.h new file mode 100644 index 0000000..b7643cf --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/OnePulse/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/system_stm32f10x.c new file mode 100644 index 0000000..eca0ad8 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/OnePulse/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/OnePulse/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/main.c new file mode 100644 index 0000000..b430f26 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/main.c @@ -0,0 +1,178 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Input/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_PWM_Input + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_ICInitTypeDef TIM_ICInitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void NVIC_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* NVIC configuration */ + NVIC_Configuration(); + + /* Configure the GPIO ports */ + GPIO_Configuration(); + + /* TIM3 configuration: PWM Input mode ------------------------ + The external signal is connected to TIM3 CH2 pin (PA.01), + The Rising edge is used as active edge, + The TIM3 CCR2 is used to compute the frequency value + The TIM3 CCR1 is used to compute the duty cycle value + ------------------------------------------------------------ */ + + TIM_ICInitStructure.TIM_Channel = TIM_Channel_2; + TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; + TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; + TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; + TIM_ICInitStructure.TIM_ICFilter = 0x0; + + TIM_PWMIConfig(TIM3, &TIM_ICInitStructure); + + /* Select the TIM3 Input Trigger: TI2FP2 */ + TIM_SelectInputTrigger(TIM3, TIM_TS_TI2FP2); + + /* Select the slave Mode: Reset Mode */ + TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Reset); + + /* Enable the Master/Slave Mode */ + TIM_SelectMasterSlaveMode(TIM3, TIM_MasterSlaveMode_Enable); + + /* TIM enable counter */ + TIM_Cmd(TIM3, ENABLE); + + /* Enable the CC2 Interrupt Request */ + TIM_ITConfig(TIM3, TIM_IT_CC2, ENABLE); + + while (1); +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM3 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); + + /* GPIOA clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); +} + +/** + * @brief Configure the GPIO Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* TIM3 channel 2 pin (PA.07) configuration */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); +} + +/** + * @brief Configure the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable the TIM3 global Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/readme.txt new file mode 100644 index 0000000..10772aa --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/readme.txt @@ -0,0 +1,97 @@ +/** + @page TIM_PWM_Input TIM PWM Input example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/PWM_Input/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM PWM Input example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to use the TIM peripheral to measure the frequency and +duty cycle of an external signal. + +The TIMxCLK frequency is set to SystemCoreClock (Hz), the Prescaler is 0 so the +TIM3 counter clock is SystemCoreClock (Hz). +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices. For Low-Density Value line, Medium-Density +Value line and High-Density devices, SystemCoreClock is set to 24 MHz. + +TIM3 is configured in PWM Input Mode: the external signal is connected to +TIM3 Channel2 used as input pin. +To measure the frequency and the duty cycle we use the TIM3 CC2 interrupt request, +so In the TIM3_IRQHandler routine, the frequency and the duty cycle of the external +signal are computed. +The "Frequency" variable contains the external signal frequency: +Frequency = TIM3 counter clock / TIM3_CCR2 in Hz, +The "DutyCycle" variable contains the external signal duty cycle: +DutyCycle = (TIM3_CCR1*100)/(TIM3_CCR2) in %. + +For Low-density, Medium-density, High-density and Connectivity line devices, +the minimum frequency value to measure is 1100 Hz. +For Low-Density Value line and Medium-Density Value line devices, the minimum +frequency value to measure is 366 Hz. + +@par Directory contents + + - TIM/PWM_Input/stm32f10x_conf.h Library Configuration file + - TIM/PWM_Input/stm32f10x_it.c Interrupt handlers + - TIM/PWM_Input/stm32f10x_it.h Interrupt handlers header file + - TIM/PWM_Input/main.c Main program + - TIM/PWM_Input/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100B-EVAL, STM3210E-EVAL, STM32100E-EVAL, STM3210B-EVAL and STM3210C-EVAL Set-up + - Connect the external signal to measure to the TIM3 CH2 pin (PA.07). + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_conf.h new file mode 100644 index 0000000..37b05f7 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Input/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_it.c new file mode 100644 index 0000000..994ff18 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_it.c @@ -0,0 +1,195 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Input/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_PWM_Input + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +__IO uint16_t IC2Value = 0; +__IO uint16_t DutyCycle = 0; +__IO uint32_t Frequency = 0; + +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles TIM3 global interrupt request. + * @param None + * @retval None + */ +void TIM3_IRQHandler(void) +{ + /* Clear TIM3 Capture compare interrupt pending bit */ + TIM_ClearITPendingBit(TIM3, TIM_IT_CC2); + + /* Get the Input Capture value */ + IC2Value = TIM_GetCapture2(TIM3); + + if (IC2Value != 0) + { + /* Duty cycle computation */ + DutyCycle = (TIM_GetCapture1(TIM3) * 100) / IC2Value; + + /* Frequency computation */ + Frequency = SystemCoreClock / IC2Value; + } + else + { + DutyCycle = 0; + Frequency = 0; + } +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_it.h new file mode 100644 index 0000000..2f22517 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/stm32f10x_it.h @@ -0,0 +1,47 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Input/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); +void TIM3_IRQHandler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/system_stm32f10x.c new file mode 100644 index 0000000..00a2f82 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Input/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Input/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/main.c new file mode 100644 index 0000000..58c7df7 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/main.c @@ -0,0 +1,215 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Output/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_PWM_Output + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t CCR1_Val = 333; +uint16_t CCR2_Val = 249; +uint16_t CCR3_Val = 166; +uint16_t CCR4_Val = 83; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* ----------------------------------------------------------------------- + TIM3 Configuration: generate 4 PWM signals with 4 different duty cycles: + The TIM3CLK frequency is set to SystemCoreClock (Hz), to get TIM3 counter + clock at 24 MHz the Prescaler is computed as following: + - Prescaler = (TIM3CLK / TIM3 counter clock) - 1 + SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density + and Connectivity line devices and to 24 MHz for Low-Density Value line and + Medium-Density Value line devices + + The TIM3 is running at 36 KHz: TIM3 Frequency = TIM3 counter clock/(ARR + 1) + = 24 MHz / 666 = 36 KHz + TIM3 Channel1 duty cycle = (TIM3_CCR1/ TIM3_ARR)* 100 = 50% + TIM3 Channel2 duty cycle = (TIM3_CCR2/ TIM3_ARR)* 100 = 37.5% + TIM3 Channel3 duty cycle = (TIM3_CCR3/ TIM3_ARR)* 100 = 25% + TIM3 Channel4 duty cycle = (TIM3_CCR4/ TIM3_ARR)* 100 = 12.5% + ----------------------------------------------------------------------- */ + /* Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1; + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 665; + TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + /* PWM1 Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1_Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable); + + /* PWM1 Mode configuration: Channel2 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR2_Val; + + TIM_OC2Init(TIM3, &TIM_OCInitStructure); + + TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable); + + /* PWM1 Mode configuration: Channel3 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR3_Val; + + TIM_OC3Init(TIM3, &TIM_OCInitStructure); + + TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable); + + /* PWM1 Mode configuration: Channel4 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR4_Val; + + TIM_OC4Init(TIM3, &TIM_OCInitStructure); + + TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Enable); + + TIM_ARRPreloadConfig(TIM3, ENABLE); + + /* TIM3 enable counter */ + TIM_Cmd(TIM3, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM3 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); + + /* GPIOA and GPIOB clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | + RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the TIM3 Ouput Channels. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /*GPIOB Configuration: TIM3 channel1, 2, 3 and 4 */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); + +#else + /* GPIOA Configuration:TIM3 Channel1, 2, 3 and 4 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); + + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1; + GPIO_Init(GPIOB, &GPIO_InitStructure); +#endif +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/readme.txt new file mode 100644 index 0000000..469aa30 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/readme.txt @@ -0,0 +1,115 @@ +/** + @page TIM_PWM_Output TIM PWM Output example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/PWM_Output/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM PWM Output example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM peripheral in PWM (Pulse Width Modulation) +mode. + +The TIM3CLK frequency is set to SystemCoreClock / 2 (Hz), to get TIM3 counter +clock at 24 MHz the Prescaler is computed as following: + - Prescaler = (TIM3CLK / TIM3 counter clock) - 1 +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices and to 24 MHz for Value line devices. + +The TIM3 is running at 36 KHz: TIM3 Frequency = TIM3 counter clock/(ARR + 1) + = 24 MHz / 666 = 36 KHz +The TIM3 CCR1 register value is equal to 500, so the TIM3 Channel 1 generates a +PWM signal with a frequency equal to 36 KHz and a duty cycle equal to 50%: +TIM3 Channel1 duty cycle = (TIM3_CCR1/ TIM3_ARR + 1)* 100 = 50% + +The TIM3 CCR2 register value is equal to 375, so the TIM3 Channel 2 generates a +PWM signal with a frequency equal to 36 KHz and a duty cycle equal to 37.5%: +TIM3 Channel2 duty cycle = (TIM3_CCR2/ TIM3_ARR + 1)* 100 = 37.5% + +The TIM3 CCR3 register value is equal to 250, so the TIM3 Channel 3 generates a +PWM signal with a frequency equal to 36 KHz and a duty cycle equal to 25%: +TIM3 Channel3 duty cycle = (TIM3_CCR3/ TIM3_ARR + 1)* 100 = 25% + +The TIM3 CCR4 register value is equal to 125, so the TIM3 Channel 4 generates a +PWM signal with a frequency equal to 36 KHz and a duty cycle equal to 12.5%: +TIM3 Channel4 duty cycle = (TIM3_CCR4/ TIM3_ARR + 1)* 100 = 12.5% + +The PWM waveform can be displayed using an oscilloscope. + +@par Directory contents + + - TIM/PWM_Output/stm32f10x_conf.h Library Configuration file + - TIM/PWM_Output/stm32f10x_it.c Interrupt handlers + - TIM/PWM_Output/stm32f10x_it.h Interrupt handlers header file + - TIM/PWM_Output/main.c Main program + - TIM/PWM_Output/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM3210C-EVAL Set-up + - Connect the following pins(TIM3 full remapping pins) to an oscilloscope to monitor the different + waveforms: + - PC.06: (TIM3_CH1) + - PC.07: (TIM3_CH2) + - PC.08: (TIM3_CH3) + - PC.09: (TIM3_CH4) + + - STM32100B-EVAL, STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different + waveforms: + - PA.06: (TIM3_CH1) + - PA.07: (TIM3_CH2) + - PB.00: (TIM3_CH3) + - PB.01: (TIM3_CH4) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_conf.h new file mode 100644 index 0000000..605b2ad --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Output/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_it.c new file mode 100644 index 0000000..01c4cb1 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_it.c @@ -0,0 +1,159 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Output/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_PWM_Output + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_it.h new file mode 100644 index 0000000..bfcc9ea --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Output/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/system_stm32f10x.c new file mode 100644 index 0000000..8dc4018 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/PWM_Output/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/PWM_Output/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/main.c new file mode 100644 index 0000000..199efb6 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/main.c @@ -0,0 +1,232 @@ +/** + ****************************************************************************** + * @file TIM/Parallel_Synchro/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_Parallel_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* Timers synchronisation in parallel mode ---------------------------- + 1/TIM2 is configured as Master Timer: + - PWM Mode is used + - The TIM2 Update event is used as Trigger Output + 2/TIM3 and TIM4 are slaves for TIM2, + - PWM Mode is used + - The ITR1(TIM2) is used as input trigger for both slaves + - Gated mode is used, so starts and stops of slaves counters + are controlled by the Master trigger output signal(update event). + + * For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHz, the TIM2 counter clock is 72 MHz. + The Master Timer TIM2 is running at 281.250 KHz and the duty cycle + is equal to 25% + The TIM3 is running: + - At (TIM2 frequency)/ (TIM3 period + 1) = 28.125 KHz and a duty cycle + equal to TIM3_CCR1/(TIM3_ARR + 1) = 30% + The TIM4 is running: + - At (TIM2 frequency)/ (TIM4 period + 1) = 56.250 KHz and a duty cycle + equal to TIM4_CCR1/(TIM4_ARR + 1) = 60% + + * For Value line devices: + The TIMxCLK is fixed to 24 MHz, the TIM2 counter clock is 24 MHz. + TIM2 frequency = 93.750 KHz, + TIM3 frequency = 23.437 KHz, + TIM4 frequency = 18.75 KHz + -------------------------------------------------------------------- */ + + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 255; + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); + + TIM_TimeBaseStructure.TIM_Period = 9; + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + TIM_TimeBaseStructure.TIM_Period = 4; + TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); + + /* Master Configuration in PWM1 Mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 64; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM2, &TIM_OCInitStructure); + + /* Select the Master Slave Mode */ + TIM_SelectMasterSlaveMode(TIM2, TIM_MasterSlaveMode_Enable); + + /* Master Mode selection */ + TIM_SelectOutputTrigger(TIM2, TIM_TRGOSource_Update); + + /* Slaves Configuration: PWM1 Mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 3; + + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + TIM_OC1Init(TIM4, &TIM_OCInitStructure); + + /* Slave Mode selection: TIM3 */ + TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Gated); + TIM_SelectInputTrigger(TIM3, TIM_TS_ITR1); + + /* Slave Mode selection: TIM4 */ + TIM_SelectSlaveMode(TIM4, TIM_SlaveMode_Gated); + TIM_SelectInputTrigger(TIM4, TIM_TS_ITR1); + + /* TIM enable counter */ + TIM_Cmd(TIM3, ENABLE); + TIM_Cmd(TIM2, ENABLE); + TIM_Cmd(TIM4, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM2, TIM3 and TIM4 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | + RCC_APB1Periph_TIM4, ENABLE); + + /* GPIOA, GPIOB, GPIOC and AFIO clocks enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | + RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the GPIO Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /*GPIOB Configuration: PC6(TIM3 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 ; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); + +#else +/* GPIOA Configuration: PA6(TIM3 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); +#endif + /* GPIOA Configuration: PA0(TIM2 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: PB6(TIM4 CH1) as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + + GPIO_Init(GPIOB, &GPIO_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/readme.txt new file mode 100644 index 0000000..4629719 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/readme.txt @@ -0,0 +1,117 @@ +/** + @page TIM_Parallel_Synchro TIM Parallel Synchro example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/Parallel_Synchro/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM Parallel Synchro example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to synchronize TIM peripherals in parallel mode. +In this example three timers are used: + +Timers synchronisation in parallel mode: + +1/TIM2 is configured as Master Timer: + - PWM Mode is used + - The TIM2 Update event is used as Trigger Output + +2/TIM3 and TIM4 are slaves for TIM2, + - PWM Mode is used + - The ITR1(TIM2) is used as input trigger for both slaves + - Gated mode is used, so starts and stops of slaves counters are controlled + by the Master trigger output signal(update event). + +o For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHz, the TIM2 counter clock is 72 MHz. + The Master Timer TIM2 is running at TIM2 frequency: + TIM2 frequency = TIM2 counter clock/ (TIM2 period + 1) = 281.250 KHz + and the duty cycle is equal to TIM2_CCR1/(TIM2_ARR + 1) = 25%. + + The TIM3 is running at: + (TIM2 frequency)/ (TIM3 period + 1) = 28.1250 KHz and a duty cycle equal to + TIM3_CCR1/(TIM3_ARR + 1) = 30% + + The TIM4 is running at: + (TIM2 frequency)/ (TIM4 period + 1) = 56.250 KHz and a duty cycle equal to + TIM4_CCR1/(TIM4_ARR + 1) = 60% + +o For Low-Density Value line, Medium-Density Value line and High-Density Value line devices: + The TIMxCLK is fixed to 24 MHz, the TIM2 counter clock is 24 MHz. + TIM2 frequency = 93.75 KHz + TIM3 frequency = 9.375 KHz + TIM4 frequency = 18.75 KHz + +@par Directory contents + + - TIM/Parallel_Synchro/stm32f10x_conf.h Library Configuration file + - TIM/Parallel_Synchro/stm32f10x_it.c Interrupt handlers + - TIM/Parallel_Synchro/stm32f10x_it.h Interrupt handlers header file + - TIM/Parallel_Synchro/main.c Main program + - TIM/Parallel_Synchro/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM3210C-EVAL Set-up + - Connect the pins to an oscilloscope to monitor the different waveforms: + - TIM2 CH1 (PA.00) + - TIM3 CH1 (PC.06) Remapped pin + - TIM4 CH1 (PB.06) + + - STM32100B-EVAL, STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up + - Connect the pins to an oscilloscope to monitor the different waveforms: + - TIM2 CH1 (PA.00) + - TIM3 CH1 (PA.06) + - TIM4 CH1 (PB.06) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_conf.h new file mode 100644 index 0000000..9e78b79 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/Parallel_Synchro/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_it.c new file mode 100644 index 0000000..c0c16e2 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_it.c @@ -0,0 +1,159 @@ +/** + ****************************************************************************** + * @file TIM/Parallel_Synchro/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_Parallel_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_it.h new file mode 100644 index 0000000..dd0ad2d --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/Parallel_Synchro/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/system_stm32f10x.c new file mode 100644 index 0000000..edfb4ad --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/Parallel_Synchro/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/Parallel_Synchro/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/main.c new file mode 100644 index 0000000..4647dfb --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/main.c @@ -0,0 +1,156 @@ +/** + ****************************************************************************** + * @file TIM/TIM10_PWMOutput/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM10_PWMOutput + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +uint16_t CCR1Val = 249; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* ----------------------------------------------------------------------- + TIM10 Configuration: generate 1 PWM signal. + The TIM10CLK frequency is set to SystemCoreClock (72 MHz), to get TIM10 counter + clock at 24 MHz the Prescaler is computed as following: + - Prescaler = (TIM10CLK / TIM10 counter clock) - 1 + + The TIM10 is running at 36 KHz: TIM10 Frequency = TIM10 counter clock/(ARR + 1) + = 24 MHz / 666 = 36 KHz + TIM10 Channel1 duty cycle = (TIM10_CCR1/ TIM10_ARR)* 100 = 37.5% + ----------------------------------------------------------------------- */ + /* Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1; + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 665; + TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM10, &TIM_TimeBaseStructure); + + /* PWM1 Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM10, &TIM_OCInitStructure); + + TIM_OC1PreloadConfig(TIM10, TIM_OCPreload_Enable); + + TIM_ARRPreloadConfig(TIM10, ENABLE); + + /* TIM10 enable counter */ + TIM_Cmd(TIM10, ENABLE); + + while (1) + {} +} + +/** + * @brief Configure TIM10 pin. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* Enable TIM10 and GPIOF clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM10 | RCC_APB2Periph_GPIOF | + RCC_APB2Periph_AFIO, ENABLE); + + /* Remap TIM10_CH1 on PF6 pin */ + GPIO_PinRemapConfig(GPIO_Remap_TIM10, ENABLE); + + /* GPIOF Configuration: TIM10 Channel1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOF, &GPIO_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt new file mode 100644 index 0000000..0282e23 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt @@ -0,0 +1,85 @@ +/** + @page TIM10_PWMOutput TIM10 PWM Output example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/TIM10_PWMOutput/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM10 PWM Output example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM10 peripheral in PWM (Pulse Width Modulation) +mode. + +The TIM10CLK frequency is set to SystemCoreClock (72 MHz), to get TIM10 counter +clock at 24 MHz the Prescaler is computed as following: + - Prescaler = (TIM10CLK / TIM10 counter clock) - 1 + +The TIM10 is running at 36 KHz: TIM10 Frequency = TIM10 counter clock/(ARR + 1) + = 24 MHz / 666 = 36 KHz +The TIM10 CCR1 register value is equal to 500, so the TIM10 Channel 1 generates a +PWM signal with a frequency equal to 36 KHz and a duty cycle equal to 37.5%: +TIM10 Channel1 duty cycle = (TIM10_CCR1/ TIM10_ARR + 1)* 100 = 37.5% + +The PWM waveform can be displayed using an oscilloscope. + + +@par Directory contents + + - TIM/TIM10_PWMOutput/stm32f10x_conf.h Library Configuration file + - TIM/TIM10_PWMOutput/stm32f10x_it.c Interrupt handlers + - TIM/TIM10_PWMOutput/stm32f10x_it.h Interrupt handlers header file + - TIM/TIM10_PWMOutput/main.c Main program + - TIM/TIM10_PWMOutput/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs only on STM32F10x XL-Density Devices. + + - This example has been tested with STMicroelectronics STM3210E-EVAL (XL-Density) + evaluation board and can be easily tailored to any development board. + + - STM3210E-EVAL Set-up + - Connect PF.06 (TIM10_CH1 remapped pin) to an oscilloscope to monitor the PWM waveform + + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_conf.h new file mode 100644 index 0000000..49f4048 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/TIM10_PWMOutput/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_it.c new file mode 100644 index 0000000..2deaafa --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_it.c @@ -0,0 +1,159 @@ +/** + ****************************************************************************** + * @file TIM/TIM10_PWMOutput/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM10_PWMOutput + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_it.h new file mode 100644 index 0000000..9bc9dae --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/TIM10_PWMOutput/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/system_stm32f10x.c new file mode 100644 index 0000000..d04db27 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/TIM10_PWMOutput/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/main.c new file mode 100644 index 0000000..973bed6 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/main.c @@ -0,0 +1,192 @@ +/** + ****************************************************************************** + * @file TIM/TIM15_ComplementarySignals/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM15_ComplementarySignals + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +TIM_BDTRInitTypeDef TIM_BDTRInitStructure; +uint16_t CCR1_Val = 32767; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* ----------------------------------------------------------------------- + TIM15 Configuration to: + + 1/ Generate a complementary PWM signals with 50% duty cycles: + TIM15CLK = 24 MHz, Prescaler = 0, TIM15 counter clock = 24 MHz + TIM15 frequency = TIM15CLK/(TIM15_Period + 1) = 366 Hz + + TIM15 Channel1 duty cycle = TIM15->CCR1 / TIM15_Period = 50% + TIM15 Channel1N duty cycle = (TIM15_Period - TIM15_CCR1) / (TIM15_Period + 1) = 50% + + 2/ Insert a dead time equal to 1.62 us + 3/ Configure the break feature, active at High level, and using the automatic + output enable feature + 4/ Use the Locking parameters level1. + ----------------------------------------------------------------------- */ + + /* Time Base configuration */ + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseStructure.TIM_Period = 65535; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; + + TIM_TimeBaseInit(TIM15, &TIM_TimeBaseStructure); + + /* Channel 1 Configuration in PWM mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1_Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; + TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low; + TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; + TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; + + TIM_OC1Init(TIM15, &TIM_OCInitStructure); + + /* Automatic Output enable, Break, dead time and lock configuration*/ + TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; + TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable; + TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_1; + TIM_BDTRInitStructure.TIM_DeadTime = 39; + TIM_BDTRInitStructure.TIM_Break = TIM_Break_Enable; + TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High; + TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable; + + TIM_BDTRConfig(TIM15, &TIM_BDTRInitStructure); + + /* TIM15 counter enable */ + TIM_Cmd(TIM15, ENABLE); + + /* Main Output Enable */ + TIM_CtrlPWMOutputs(TIM15, ENABLE); + + while (1) + { + } +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM15, GPIOA, GPIOB and AFIO clocks enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM15 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB + | RCC_APB2Periph_AFIO, ENABLE); +} + +/** + * @brief Configure the TIM1 Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* GPIOA Configuration: Channel 1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* GPIOB Configuration: Channel 1N as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; + GPIO_Init(GPIOB, &GPIO_InitStructure); + + /* GPIOA Configuration: BKIN pin */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(GPIOB, &GPIO_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/readme.txt new file mode 100644 index 0000000..c531058 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/readme.txt @@ -0,0 +1,97 @@ +/** + @page TIM15_ComplementarySignals TIM15 Complementary Signals example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/TIM15_ComplementarySignals/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM15 Complementary Signals example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM15 peripheral to generate one +complementary TIM15 signal, to insert a defined dead time value, to use the break +feature and to lock the desired parameters. + +TIM15CLK is fixed to 24 MHz, the TIM15 Prescaler is equal to 0 so the TIM15 counter +clock used is 24 MHz. + +TIM15 frequency is defined as follow: +TIM15 frequency = TIM15 counter clock / (TIM15_Period + 1) = 366 Hz. + +The Duty cycles is computed as the following description: + +- TIM15 Channel1 duty cycle = TIM15_CCR1 / (TIM15_Period + 1) = 50% +- TIM15 Channel1N duty cycle = (TIM15_Period - TIM15_CCR1) / (TIM15_Period + 1) = 50% + +A dead time of 1.62 us is inserted between the different complementary signals, +and the Lock level 1 is selected. +The break Polarity is used at High level. + +The TIM15 waveform can be displayed using an oscilloscope. + +@par Directory contents + + - TIM/TIM15_ComplementarySignals/stm32f10x_conf.h Library Configuration file + - TIM/TIM15_ComplementarySignals/stm32f10x_it.c Interrupt handlers + - TIM/TIM15_ComplementarySignals/stm32f10x_it.h Interrupt handlers header file + - TIM/TIM15_ComplementarySignals/main.c Main program + - TIM/TIM15_ComplementarySignals/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on High-Density Value line, STM32F10x Medium-Density Value + line and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL + (STM32F10x High-Density Value line) and STM32100B-EVAL (Medium-Density Value + line) evaluation boards and can be easily tailored to any other supported + device and development board. + + - STM32100E-EVAL and STM32100B-EVAL Set-up + - Connect the TIM15 pins to an oscilloscope to monitor the different waveforms: + - TIM15_CH1 pin (PA.02) + - TIM15_CH1N pin (PB.15) + + - Connect the TIM15 break pin TIM15_BKIN pin (PA.09) to the GND. To generate + a break event, switch this pin level from 0V to 3.3V. + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_conf.h new file mode 100644 index 0000000..63f89d0 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/TIM15_ComplementarySignals/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_it.c new file mode 100644 index 0000000..e8d9453 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_it.c @@ -0,0 +1,158 @@ +/** + ****************************************************************************** + * @file TIM/TIM15_ComplementarySignals/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and + * peripherals interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM15_ComplementarySignals + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_it.h new file mode 100644 index 0000000..65efd6f --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/TIM15_ComplementarySignals/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/system_stm32f10x.c new file mode 100644 index 0000000..07dbdbb --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/TIM15_ComplementarySignals/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/main.c new file mode 100644 index 0000000..4b7a836 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/main.c @@ -0,0 +1,274 @@ +/** + ****************************************************************************** + * @file TIM/TIM1_Synchro/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_TIM1_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +TIM_BDTRInitTypeDef TIM_BDTRInitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* TIM1 and Timers(TIM3 and TIM4) synchronisation in parallel mode ----------- + 1/TIM1 is configured as Master Timer: + - PWM Mode is used + - The TIM1 Update event is used as Trigger Output + + 2/TIM3 and TIM4 are slaves for TIM1, + - PWM Mode is used + - The ITR0(TIM1) is used as input trigger for both slaves + - Gated mode is used, so starts and stops of slaves counters + are controlled by the Master trigger output signal(update event). + + o For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHz, Prescaler = 0 so the TIM1 counter clock is 72 MHz. + + The Master Timer TIM1 is running at: + TIM1 frequency = TIM1 counter clock / (TIM1_Period + 1) = 281.250 KHz + and the duty cycle is equal to: TIM1_CCR1/(TIM1_ARR + 1) = 50% + + The TIM3 is running at: + (TIM1 frequency)/ ((TIM3 period +1)* (Repetition_Counter+1)) = 18.750 KHz and + a duty cycle equal to TIM3_CCR1/(TIM3_ARR + 1) = 33.3% + + The TIM4 is running at: + (TIM1 frequency)/ ((TIM4 period +1)* (Repetition_Counter+1)) = 28.125 KHz and + a duty cycle equal to TIM4_CCR1/(TIM4_ARR + 1) = 50% + + o For Low-Density Value line and Medium-Density Value line devices: + The TIMxCLK is fixed to 24 MHz, Prescaler = 0 so the TIM1 counter clock is 24 MHz. + TIM1 frequency = 93.75 KHz + TIM3 frequency = 6.25 KHz + TIM4 frequency = 9.375 KHz + --------------------------------------------------------------------------- */ + + /* TIM3 Peripheral Configuration ----------------------------------------*/ + /* TIM3 Slave Configuration: PWM1 Mode */ + TIM_TimeBaseStructure.TIM_Period = 2; + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 1; + + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + /* Slave Mode selection: TIM3 */ + TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Gated); + TIM_SelectInputTrigger(TIM3, TIM_TS_ITR0); + + /* TIM4 Peripheral Configuration ----------------------------------------*/ + /* TIM4 Slave Configuration: PWM1 Mode */ + TIM_TimeBaseStructure.TIM_Period = 1; + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); + + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = 1; + + TIM_OC1Init(TIM4, &TIM_OCInitStructure); + + /* Slave Mode selection: TIM4 */ + TIM_SelectSlaveMode(TIM4, TIM_SlaveMode_Gated); + TIM_SelectInputTrigger(TIM4, TIM_TS_ITR0); + + /* TIM1 Peripheral Configuration ----------------------------------------*/ + /* Time Base configuration */ + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseStructure.TIM_Period = 255; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_RepetitionCounter = 4; + + TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); + + /* Channel 1 Configuration in PWM mode */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; + TIM_OCInitStructure.TIM_Pulse = 127; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; + TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low; + TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; + TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; + + TIM_OC1Init(TIM1, &TIM_OCInitStructure); + + /* Automatic Output enable, Break, dead time and lock configuration*/ + TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; + TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable; + TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_1; + TIM_BDTRInitStructure.TIM_DeadTime = 5; + TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable; + TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High; + TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Disable; + + TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure); + + /* Master Mode selection */ + TIM_SelectOutputTrigger(TIM1, TIM_TRGOSource_Update); + + /* Select the Master Slave Mode */ + TIM_SelectMasterSlaveMode(TIM1, TIM_MasterSlaveMode_Enable); + + /* TIM1 counter enable */ + TIM_Cmd(TIM1, ENABLE); + + /* TIM enable counter */ + TIM_Cmd(TIM3, ENABLE); + TIM_Cmd(TIM4, ENABLE); + + /* Main Output Enable */ + TIM_CtrlPWMOutputs(TIM1, ENABLE); + + while (1) + {} +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* TIM1, GPIOA and GPIOB clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOE | + RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE); + + /* TIM3 and TIM4 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3 | RCC_APB1Periph_TIM4, ENABLE); +} + +/** + * @brief Configures TIM1, TIM3 and TIM4 Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef STM32F10X_CL + /* GPIOC Configuration: TIM3 channel1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); + + /* GPIOE Configuration: TIM1 channel1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; + + GPIO_Init(GPIOE, &GPIO_InitStructure); + + GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE); + +#else + + /* GPIOA Configuration: TIM1 Channel1 and TIM3 Channel1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_8; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_Init(GPIOA, &GPIO_InitStructure); +#endif + + /* GPIOB Configuration: TIM4 Channel1 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; + GPIO_Init(GPIOB, &GPIO_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/readme.txt new file mode 100644 index 0000000..cefbfa3 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/readme.txt @@ -0,0 +1,118 @@ +/** + @page TIM_TIM1_Synchro TIM1 Synchro example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/TIM1_Synchro/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM TIM1 Synchro example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to synchronize TIM1 and Timers (TIM3 and TIM4) in parallel mode. + +Timers synchronisation in parallel mode: + +1/ TIM1 is configured as Master Timer: + - PWM Mode is used + - The TIM1 Update event is used as Trigger Output + +2/ TIM3 and TIM4 are slaves for TIM1, + - PWM Mode is used + - The ITR0(TIM1) is used as input trigger for both slaves + - Gated mode is used, so starts and stops of slaves counters + are controlled by the Master trigger output signal(update event). + +o For Low-density, Medium-density, High-density and Connectivity line devices: + The TIMxCLK is fixed to 72 MHz, Prescaler = 0 so the TIM1 counter clock is 72 MHz. + + The Master Timer TIM1 is running at: + TIM1 frequency = TIM1 counter clock / (TIM1_Period + 1) = 281.250 KHz + and the duty cycle is equal to: TIM1_CCR1/(TIM1_ARR + 1) = 50% + + The TIM3 is running at: + (TIM1 frequency)/ ((TIM3 period +1)* (Repetition_Counter+1)) = 18.750 KHz and + a duty cycle equal to TIM3_CCR1/(TIM3_ARR + 1) = 33.3% + + The TIM4 is running at: + (TIM1 frequency)/ ((TIM4 period +1)* (Repetition_Counter+1)) = 28.125 KHz and + a duty cycle equal to TIM4_CCR1/(TIM4_ARR + 1) = 50% + +o For Value line devices: + The TIMxCLK is fixed to 24 MHz, Prescaler = 0 so the TIM1 counter clock is 24 MHz. + TIM1 frequency = 93.75 KHz + TIM3 frequency = 6.25 KHz + TIM4 frequency = 9.375 KHz + +@par Directory contents + + - TIM/TIM1_Synchro/stm32f10x_conf.h Library Configuration file + - TIM/TIM1_Synchro/stm32f10x_it.c Interrupt handlers + - TIM/TIM1_Synchro/stm32f10x_it.h Interrupt handlers header file + - TIM/TIM1_Synchro/main.c Main program + - TIM/TIM1_Synchro/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + + - STM3210C-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different waveforms: + - TIM1 CH1 (PE.08) Remapped pin + - TIM3 CH1 (PC.06) Remapped pin + - TIM4 CH1 (PB.06) + + - STM32100B-EVAL, STM3210E-EVAL, STM32100E-EVAL and STM3210B-EVAL Set-up + - Connect the following pins to an oscilloscope to monitor the different waveforms: + - TIM1 CH1 (PA.08) + - TIM3 CH1 (PA.06) + - TIM4 CH1 (PB.06) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_conf.h new file mode 100644 index 0000000..7473e1b --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_conf.h @@ -0,0 +1,78 @@ +/** + ****************************************************************************** + * @file TIM/TIM1_Synchro/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_it.c new file mode 100644 index 0000000..c825c9e --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_it.c @@ -0,0 +1,159 @@ +/** + ****************************************************************************** + * @file TIM/TIM1_Synchro/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_TIM1_Synchro + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_it.h new file mode 100644 index 0000000..1dae652 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/stm32f10x_it.h @@ -0,0 +1,46 @@ +/** + ****************************************************************************** + * @file TIM/TIM1_Synchro/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/system_stm32f10x.c new file mode 100644 index 0000000..80962ef --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/TIM1_Synchro/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/main.c new file mode 100644 index 0000000..6f70494 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/main.c @@ -0,0 +1,180 @@ +/** + ****************************************************************************** + * @file TIM/TIM9_OCToggle/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM9_OCToggle + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +__IO uint16_t CCR1Val = 32768; +__IO uint16_t CCR2Val = 16384; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void GPIO_Configuration(void); +void NVIC_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* Configure TIM9 pins */ + GPIO_Configuration(); + + /* NVIC Configuration */ + NVIC_Configuration(); + + /* --------------------------------------------------------------------------- + TIM9 Configuration: Output Compare Toggle Mode: + TIM9CLK = SystemCoreClock (72MHz), + The objective is to get TIM9 counter clock at 24 MHz: + - Prescaler = (TIM9CLK / TIM9 counter clock) - 1 + CC1 update rate = TIM9 counter clock / CCR1Val = 732.4 Hz + CC2 update rate = TIM9 counter clock / CCR2Val = 1464.8 Hz + ----------------------------------------------------------------------------*/ + /* Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1; + + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 65535; + TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM9, &TIM_TimeBaseStructure); + + /* Output Compare Toggle Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; + TIM_OC1Init(TIM9, &TIM_OCInitStructure); + + TIM_OC1PreloadConfig(TIM9, TIM_OCPreload_Disable); + + /* Output Compare Toggle Mode configuration: Channel2 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR2Val; + + TIM_OC2Init(TIM9, &TIM_OCInitStructure); + + TIM_OC2PreloadConfig(TIM9, TIM_OCPreload_Disable); + + /* TIM enable counter */ + TIM_Cmd(TIM9, ENABLE); + + /* TIM IT enable */ + TIM_ITConfig(TIM9, TIM_IT_CC1 | TIM_IT_CC2, ENABLE); + + while (1) + { + } +} + +/** + * @brief Configure TIM9 pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* Enable TIM9 and GPIOA clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM9 | RCC_APB2Periph_GPIOA, ENABLE); + + /* GPIOA Configuration:TIM9 Channel1 and 2 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOA, &GPIO_InitStructure); +} + +/** + * @brief Configure the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable the TIM9 global Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM1_BRK_TIM9_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/readme.txt new file mode 100644 index 0000000..8503879 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/readme.txt @@ -0,0 +1,87 @@ +/** + @page TIM9_OCToggle TIM9 OC Toggle example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/TIM9_OCToggle/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM9 OC Toggle example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM9 peripheral to generate two different +signals with two different frequencies. + +The TIM9CLK frequency is set to SystemCoreClock (72 MHz), and we want to get TIM9 +counter clock at 24 MHz so the Prescaler is computed as following: + - Prescaler = (TIM9CLK / TIM9 counter clock) - 1 + +The TIM9 CCR1 register value is equal to 32768: +CC1 update rate = TIM9 counter clock / CCR1Val = 732.4 Hz, +so the TIM9 Channel 1 generates a periodic signal with a frequency equal to 366.2 Hz. + +The TIM9 CCR2 register is equal to 16384: +CC2 update rate = TIM9 counter clock / CCR2Val = 1464.8 +so the TIM9 channel 2 generates a periodic signal with a frequency equal to 732.4 Hz. + + +@par Directory contents + + - TIM/TIM9_OCToggle/stm32f10x_conf.h Library Configuration file + - TIM/TIM9_OCToggle/stm32f10x_it.c Interrupt handlers + - TIM/TIM9_OCToggle/stm32f10x_it.h Interrupt handlers header file + - TIM/TIM9_OCToggle/main.c Main program + - TIM/TIM9_OCToggle/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs only on STM32F10x XL-Density Devices. + + - This example has been tested with STMicroelectronics STM3210E-EVAL (XL-Density) + evaluation board and can be easily tailored to any development board. + + - STM3210E-EVAL Set-up + - Connect the TIM9 pins to an oscilloscope to monitor the different waveforms: + - PA.02 (TIM9_CH1) + - PA.03 (TIM9_CH2) + + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_conf.h new file mode 100644 index 0000000..2dfb346 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/TIM9_OCToggle/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_it.c new file mode 100644 index 0000000..86fd78c --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_it.c @@ -0,0 +1,191 @@ +/** + ****************************************************************************** + * @file TIM/TIM9_OCToggle/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM9_OCToggle + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +uint16_t capture = 0; +extern __IO uint16_t CCR1Val; +extern __IO uint16_t CCR2Val; + +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles TIM1 Break and TIM9 interrupts request. + * @param None + * @retval None + */ +void TIM1_BRK_TIM9_IRQHandler(void) +{ + /* TIM9_CH1 toggling with frequency = 366.2 Hz */ + if (TIM_GetITStatus(TIM9, TIM_IT_CC1) != RESET) + { + TIM_ClearITPendingBit(TIM9, TIM_IT_CC1 ); + capture = TIM_GetCapture1(TIM9); + TIM_SetCompare1(TIM9, capture + CCR1Val ); + } + + /* TIM9_CH2 toggling with frequency = 732.4 Hz */ + if (TIM_GetITStatus(TIM9, TIM_IT_CC2) != RESET) + { + TIM_ClearITPendingBit(TIM9, TIM_IT_CC2); + capture = TIM_GetCapture2(TIM9); + TIM_SetCompare2(TIM9, capture + CCR2Val); + } +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_it.h new file mode 100644 index 0000000..6eef077 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/stm32f10x_it.h @@ -0,0 +1,47 @@ +/** + ****************************************************************************** + * @file TIM/TIM9_OCToggle/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); +void TIM3_IRQHandler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/system_stm32f10x.c new file mode 100644 index 0000000..082a454 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM9_OCToggle/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/TIM9_OCToggle/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/main.c new file mode 100644 index 0000000..d142cfb --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/main.c @@ -0,0 +1,221 @@ +/** + ****************************************************************************** + * @file TIM/TimeBase/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_TimeBase + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; +TIM_OCInitTypeDef TIM_OCInitStructure; +__IO uint16_t CCR1_Val = 40961; +__IO uint16_t CCR2_Val = 27309; +__IO uint16_t CCR3_Val = 13654; +__IO uint16_t CCR4_Val = 6826; +uint16_t PrescalerValue = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void NVIC_Configuration(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* System Clocks Configuration */ + RCC_Configuration(); + + /* NVIC Configuration */ + NVIC_Configuration(); + + /* GPIO Configuration */ + GPIO_Configuration(); + + /* --------------------------------------------------------------- + TIM2 Configuration: Output Compare Timing Mode: + TIM2 counter clock at 6 MHz + CC1 update rate = TIM2 counter clock / CCR1_Val = 146.48 Hz + CC2 update rate = TIM2 counter clock / CCR2_Val = 219.7 Hz + CC3 update rate = TIM2 counter clock / CCR3_Val = 439.4 Hz + CC4 update rate = TIM2 counter clock / CCR4_Val = 878.9 Hz + --------------------------------------------------------------- */ + + /* Compute the prescaler value */ + PrescalerValue = (uint16_t) (SystemCoreClock / 12000000) - 1; + + /* Time base configuration */ + TIM_TimeBaseStructure.TIM_Period = 65535; + TIM_TimeBaseStructure.TIM_Prescaler = 0; + TIM_TimeBaseStructure.TIM_ClockDivision = 0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + + TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); + + /* Prescaler configuration */ + TIM_PrescalerConfig(TIM2, PrescalerValue, TIM_PSCReloadMode_Immediate); + + /* Output Compare Timing Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing; + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR1_Val; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + + TIM_OC1Init(TIM2, &TIM_OCInitStructure); + + TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Disable); + + /* Output Compare Timing Mode configuration: Channel2 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR2_Val; + + TIM_OC2Init(TIM2, &TIM_OCInitStructure); + + TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Disable); + + /* Output Compare Timing Mode configuration: Channel3 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR3_Val; + + TIM_OC3Init(TIM2, &TIM_OCInitStructure); + + TIM_OC3PreloadConfig(TIM2, TIM_OCPreload_Disable); + + /* Output Compare Timing Mode configuration: Channel4 */ + TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; + TIM_OCInitStructure.TIM_Pulse = CCR4_Val; + + TIM_OC4Init(TIM2, &TIM_OCInitStructure); + + TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Disable); + + /* TIM IT enable */ + TIM_ITConfig(TIM2, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4, ENABLE); + + /* TIM2 enable counter */ + TIM_Cmd(TIM2, ENABLE); + + while (1); +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* PCLK1 = HCLK/4 */ + RCC_PCLK1Config(RCC_HCLK_Div4); + + /* TIM2 clock enable */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); + + /* GPIOC clock enable */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); +} + +/** + * @brief Configure the GPIO Pins. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + + /* GPIOC Configuration:Pin6, 7, 8 and 9 as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + + GPIO_Init(GPIOC, &GPIO_InitStructure); +} + +/** + * @brief Configure the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable the TIM2 global Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + + NVIC_Init(&NVIC_InitStructure); +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + while (1) + {} +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/readme.txt new file mode 100644 index 0000000..f893802 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/readme.txt @@ -0,0 +1,110 @@ +/** + @page TIM_TimeBase TIM Time Base example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/TimeBase/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM Time Base example. + ****************************************************************************** + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + ****************************************************************************** + @endverbatim + +@par Example Description + +This example shows how to configure the TIM peripheral in Output Compare Timing +mode with the corresponding Interrupt requests for each channel in order to generate +4 different time bases. + +The TIM2CLK frequency is set to SystemCoreClock / 2 (Hz), to get TIM2 counter +clock at 6 MHz so the Prescaler is computed as following: + - Prescaler = (TIM2CLK / TIM2 counter clock) - 1 +SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density +and Connectivity line devices and to 24 MHz for Low-Density Value line, +Medium-Density Value line and High-Density devices. + +The TIM2 CC1 register value is equal to 40961, +CC1 update rate = TIM2 counter clock / CCR1_Val = 146.48 Hz, +so the TIM2 Channel 1 generates an interrupt each 6.8ms + +The TIM2 CC2 register is equal to 27309, +CC2 update rate = TIM2 counter clock / CCR2_Val = 219.7 Hz +so the TIM2 Channel 2 generates an interrupt each 4.55ms + +The TIM2 CC3 register is equal to 13654, +CC3 update rate = TIM2 counter clock / CCR3_Val = 439.4Hz +so the TIM2 Channel 3 generates an interrupt each 2.27ms + +The TIM2 CC4 register is equal to 6826, +CC4 update rate = TIM2 counter clock / CCR4_Val = 878.9 Hz +so the TIM2 Channel 4 generates an interrupt each 1.13ms. + +When the counter value reaches the Output compare registers values, the Output +Compare interrupts are generated and, in the handler routine, 4 pins(PC.06, PC.07, +PC.08 and PC.09) are toggled with the following frequencies: + +- PC.06: 73.24Hz (CC1) +- PC.07: 109.8Hz (CC2) +- PC.08: 219.7Hz (CC3) +- PC.09: 439.4Hz (CC4) + +@par Directory contents + + - TIM/TimeBase/stm32f10x_conf.h Library Configuration file + - TIM/TimeBase/stm32f10x_it.c Interrupt handlers + - TIM/TimeBase/stm32f10x_it.h Interrupt handlers header file + - TIM/TimeBase/main.c Main program + - TIM/TimeBase/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, High-Density + Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL (Connectivity line), + STM3210E-EVAL (High-Density and XL-Density) and STM3210B-EVAL (Medium-Density) + evaluation boards and can be easily tailored to any other supported device + and development board. + + - STM32100E-EVAL, STM3210E-EVAL, STM32100E-EVAL, STM3210B-EVAL and STM3210C-EVAL Set-up + - Connect an oscilloscope on PC.06, PC.07, PC.08 and PC.09 to show the + different Time Base signals. + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_conf.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_conf.h new file mode 100644 index 0000000..c591b11 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_conf.h @@ -0,0 +1,77 @@ +/** + ****************************************************************************** + * @file TIM/TimeBase/stm32f10x_conf.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Library configuration file. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CONF_H +#define __STM32F10x_CONF_H + +/* Includes ------------------------------------------------------------------*/ +/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */ +#include "stm32f10x_adc.h" +#include "stm32f10x_bkp.h" +#include "stm32f10x_can.h" +#include "stm32f10x_cec.h" +#include "stm32f10x_crc.h" +#include "stm32f10x_dac.h" +#include "stm32f10x_dbgmcu.h" +#include "stm32f10x_dma.h" +#include "stm32f10x_exti.h" +#include "stm32f10x_flash.h" +#include "stm32f10x_fsmc.h" +#include "stm32f10x_gpio.h" +#include "stm32f10x_i2c.h" +#include "stm32f10x_iwdg.h" +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" +#include "stm32f10x_rtc.h" +#include "stm32f10x_sdio.h" +#include "stm32f10x_spi.h" +#include "stm32f10x_tim.h" +#include "stm32f10x_usart.h" +#include "stm32f10x_wwdg.h" +#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Uncomment the line below to expanse the "assert_param" macro in the + Standard Peripheral Library drivers code */ +/* #define USE_FULL_ASSERT 1 */ + +/* Exported macro ------------------------------------------------------------*/ +#ifdef USE_FULL_ASSERT + +/** + * @brief The assert_param macro is used for function's parameters check. + * @param expr: If expr is false, it calls assert_failed function which reports + * the name of the source file and the source line number of the call + * that failed. If expr is true, it returns no value. + * @retval None + */ + #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__)) +/* Exported functions ------------------------------------------------------- */ + void assert_failed(uint8_t* file, uint32_t line); +#else + #define assert_param(expr) ((void)0) +#endif /* USE_FULL_ASSERT */ + +#endif /* __STM32F10x_CONF_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_it.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_it.c new file mode 100644 index 0000000..2d4a7ed --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_it.c @@ -0,0 +1,214 @@ +/** + ****************************************************************************** + * @file TIM/TimeBase/stm32f10x_it.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main Interrupt Service Routines. + * This file provides template for all exceptions handler and peripherals + * interrupt service routine. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_it.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup TIM_TimeBase + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +uint16_t capture = 0; +extern __IO uint16_t CCR1_Val; +extern __IO uint16_t CCR2_Val; +extern __IO uint16_t CCR3_Val; +extern __IO uint16_t CCR4_Val; + +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/******************************************************************************/ +/* Cortex-M3 Processor Exceptions Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles NMI exception. + * @param None + * @retval None + */ +void NMI_Handler(void) +{ +} + +/** + * @brief This function handles Hard Fault exception. + * @param None + * @retval None + */ +void HardFault_Handler(void) +{ + /* Go to infinite loop when Hard Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Memory Manage exception. + * @param None + * @retval None + */ +void MemManage_Handler(void) +{ + /* Go to infinite loop when Memory Manage exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Bus Fault exception. + * @param None + * @retval None + */ +void BusFault_Handler(void) +{ + /* Go to infinite loop when Bus Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Usage Fault exception. + * @param None + * @retval None + */ +void UsageFault_Handler(void) +{ + /* Go to infinite loop when Usage Fault exception occurs */ + while (1) + {} +} + +/** + * @brief This function handles Debug Monitor exception. + * @param None + * @retval None + */ +void DebugMon_Handler(void) +{} + +/** + * @brief This function handles SVCall exception. + * @param None + * @retval None + */ +void SVC_Handler(void) +{} + +/** + * @brief This function handles PendSV_Handler exception. + * @param None + * @retval None + */ +void PendSV_Handler(void) +{} + +/** + * @brief This function handles SysTick Handler. + * @param None + * @retval None + */ +void SysTick_Handler(void) +{} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/******************************************************************************/ + +/** + * @brief This function handles TIM2 global interrupt request. + * @param None + * @retval None + */ +void TIM2_IRQHandler(void) +{ + if (TIM_GetITStatus(TIM2, TIM_IT_CC1) != RESET) + { + TIM_ClearITPendingBit(TIM2, TIM_IT_CC1); + + /* Pin PC.06 toggling with frequency = 73.24 Hz */ + GPIO_WriteBit(GPIOC, GPIO_Pin_6, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIOC, GPIO_Pin_6))); + capture = TIM_GetCapture1(TIM2); + TIM_SetCompare1(TIM2, capture + CCR1_Val); + } + else if (TIM_GetITStatus(TIM2, TIM_IT_CC2) != RESET) + { + TIM_ClearITPendingBit(TIM2, TIM_IT_CC2); + + /* Pin PC.07 toggling with frequency = 109.8 Hz */ + GPIO_WriteBit(GPIOC, GPIO_Pin_7, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIOC, GPIO_Pin_7))); + capture = TIM_GetCapture2(TIM2); + TIM_SetCompare2(TIM2, capture + CCR2_Val); + } + else if (TIM_GetITStatus(TIM2, TIM_IT_CC3) != RESET) + { + TIM_ClearITPendingBit(TIM2, TIM_IT_CC3); + + /* Pin PC.08 toggling with frequency = 219.7 Hz */ + GPIO_WriteBit(GPIOC, GPIO_Pin_8, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIOC, GPIO_Pin_8))); + capture = TIM_GetCapture3(TIM2); + TIM_SetCompare3(TIM2, capture + CCR3_Val); + } + else + { + TIM_ClearITPendingBit(TIM2, TIM_IT_CC4); + + /* Pin PC.09 toggling with frequency = 439.4 Hz */ + GPIO_WriteBit(GPIOC, GPIO_Pin_9, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIOC, GPIO_Pin_9))); + capture = TIM_GetCapture4(TIM2); + TIM_SetCompare4(TIM2, capture + CCR4_Val); + } +} + +/******************************************************************************/ +/* STM32F10x Peripherals Interrupt Handlers */ +/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ +/* available peripheral interrupt handler's name please refer to the startup */ +/* file (startup_stm32f10x_xx.s). */ +/******************************************************************************/ + +/** + * @brief This function handles PPP interrupt request. + * @param None + * @retval None + */ +/*void PPP_IRQHandler(void) +{ +}*/ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_it.h b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_it.h new file mode 100644 index 0000000..7009cc3 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/stm32f10x_it.h @@ -0,0 +1,47 @@ +/** + ****************************************************************************** + * @file TIM/TimeBase/stm32f10x_it.h + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief This file contains the headers of the interrupt handlers. + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_IT_H +#define __STM32F10x_IT_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ + +void NMI_Handler(void); +void HardFault_Handler(void); +void MemManage_Handler(void); +void BusFault_Handler(void); +void UsageFault_Handler(void); +void SVC_Handler(void); +void DebugMon_Handler(void); +void PendSV_Handler(void); +void SysTick_Handler(void); +void TIM2_IRQHandler(void); + +#endif /* __STM32F10x_IT_H */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/system_stm32f10x.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/system_stm32f10x.c new file mode 100644 index 0000000..4be629f --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TimeBase/system_stm32f10x.c @@ -0,0 +1,1094 @@ +/** + ****************************************************************************** + * @file TIM/TimeBase/system_stm32f10x.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File. + * + * 1. This file provides two functions and one global variable to be called from + * user application: + * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier + * factors, AHB/APBx prescalers and Flash settings). + * This function is called at startup just after reset and + * before branch to main program. This call is made inside + * the "startup_stm32f10x_xx.s" file. + * + * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used + * by the user application to setup the SysTick + * timer or configure other parameters. + * + * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must + * be called whenever the core clock is changed + * during program execution. + * + * 2. After each device reset the HSI (8 MHz) is used as system clock source. + * Then SystemInit() function is called, in "startup_stm32f10x_xx.s" file, to + * configure the system clock before to branch to main program. + * + * 3. If the system clock source selected by user fails to startup, the SystemInit() + * function will do nothing and HSI still used as system clock source. User can + * add some code to deal with this issue inside the SetSysClock() function. + * + * 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depedning on + * the product used), refer to "HSE_VALUE" define in "stm32f10x.h" file. + * When HSE is used as system clock source, directly or through PLL, and you + * are using different crystal you have to adapt the HSE value to your own + * configuration. + * + ****************************************************************************** + * @attention + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/** @addtogroup CMSIS + * @{ + */ + +/** @addtogroup stm32f10x_system + * @{ + */ + +/** @addtogroup STM32F10x_System_Private_Includes + * @{ + */ + +#include "stm32f10x.h" + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Defines + * @{ + */ + +/*!< Uncomment the line corresponding to the desired System clock (SYSCLK) + frequency (after reset the HSI is used as SYSCLK source) + + IMPORTANT NOTE: + ============== + 1. After each device reset the HSI is used as System clock source. + + 2. Please make sure that the selected System clock doesn't exceed your device's + maximum frequency. + + 3. If none of the define below is enabled, the HSI is used as System clock + source. + + 4. The System clock configuration functions provided within this file assume that: + - For Low, Medium and High density Value line devices an external 8MHz + crystal is used to drive the System clock. + - For Low, Medium and High density devices an external 8MHz crystal is + used to drive the System clock. + - For Connectivity line devices an external 25MHz crystal is used to drive + the System clock. + If you are using different crystal you have to adapt those functions accordingly. + */ + +#if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ + #define SYSCLK_FREQ_24MHz 24000000 +#else +/* #define SYSCLK_FREQ_HSE HSE_VALUE */ +/* #define SYSCLK_FREQ_24MHz 24000000 */ +/* #define SYSCLK_FREQ_36MHz 36000000 */ +/* #define SYSCLK_FREQ_48MHz 48000000 */ +/* #define SYSCLK_FREQ_56MHz 56000000 */ +#define SYSCLK_FREQ_72MHz 72000000 +#endif + +/*!< Uncomment the following line if you need to use external SRAM mounted + on STM3210E-EVAL board (STM32 High density and XL-density devices) or on + STM32100E-EVAL board (STM32 High-density value line devices) as data memory */ +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) +/* #define DATA_IN_ExtSRAM */ +#endif + +/*!< Uncomment the following line if you need to relocate your vector Table in + Internal SRAM. */ +/* #define VECT_TAB_SRAM */ +#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. + This value must be a multiple of 0x200. */ + + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Variables + * @{ + */ + +/******************************************************************************* +* Clock Definitions +*******************************************************************************/ +#ifdef SYSCLK_FREQ_HSE + uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_24MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_24MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_36MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_36MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_48MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_56MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz; /*!< System Clock Frequency (Core Clock) */ +#elif defined SYSCLK_FREQ_72MHz + uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz; /*!< System Clock Frequency (Core Clock) */ +#else /*!< HSI Selected as System Clock source */ + uint32_t SystemCoreClock = HSI_VALUE; /*!< System Clock Frequency (Core Clock) */ +#endif + +__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_FunctionPrototypes + * @{ + */ + +static void SetSysClock(void); + +#ifdef SYSCLK_FREQ_HSE + static void SetSysClockToHSE(void); +#elif defined SYSCLK_FREQ_24MHz + static void SetSysClockTo24(void); +#elif defined SYSCLK_FREQ_36MHz + static void SetSysClockTo36(void); +#elif defined SYSCLK_FREQ_48MHz + static void SetSysClockTo48(void); +#elif defined SYSCLK_FREQ_56MHz + static void SetSysClockTo56(void); +#elif defined SYSCLK_FREQ_72MHz + static void SetSysClockTo72(void); +#endif + +#ifdef DATA_IN_ExtSRAM + static void SystemInit_ExtMemCtl(void); +#endif /* DATA_IN_ExtSRAM */ + +/** + * @} + */ + +/** @addtogroup STM32F10x_System_Private_Functions + * @{ + */ + +/** + * @brief Setup the microcontroller system + * Initialize the Embedded Flash Interface, the PLL and update the + * SystemCoreClock variable. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +void SystemInit (void) +{ + /* Reset the RCC clock configuration to the default reset state(for debug purpose) */ + /* Set HSION bit */ + RCC->CR |= (uint32_t)0x00000001; + + /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ +#ifndef STM32F10X_CL + RCC->CFGR &= (uint32_t)0xF8FF0000; +#else + RCC->CFGR &= (uint32_t)0xF0FF0000; +#endif /* STM32F10X_CL */ + + /* Reset HSEON, CSSON and PLLON bits */ + RCC->CR &= (uint32_t)0xFEF6FFFF; + + /* Reset HSEBYP bit */ + RCC->CR &= (uint32_t)0xFFFBFFFF; + + /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ + RCC->CFGR &= (uint32_t)0xFF80FFFF; + +#ifdef STM32F10X_CL + /* Reset PLL2ON and PLL3ON bits */ + RCC->CR &= (uint32_t)0xEBFFFFFF; + + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x00FF0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; + + /* Reset CFGR2 register */ + RCC->CFGR2 = 0x00000000; +#else + /* Disable all interrupts and clear pending bits */ + RCC->CIR = 0x009F0000; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_HD) || (defined STM32F10X_XL) || (defined STM32F10X_HD_VL) + #ifdef DATA_IN_ExtSRAM + SystemInit_ExtMemCtl(); + #endif /* DATA_IN_ExtSRAM */ +#endif + + /* Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */ + /* Configure the Flash Latency cycles and enable prefetch buffer */ + SetSysClock(); + +#ifdef VECT_TAB_SRAM + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ +#else + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ +#endif +} + +/** + * @brief Update SystemCoreClock variable according to Clock Register Values. + * The SystemCoreClock variable contains the core clock (HCLK), it can + * be used by the user application to setup the SysTick timer or configure + * other parameters. + * + * @note Each time the core clock (HCLK) changes, this function must be called + * to update SystemCoreClock variable value. Otherwise, any configuration + * based on this variable will be incorrect. + * + * @note - The system frequency computed by this function is not the real + * frequency in the chip. It is calculated based on the predefined + * constant and the selected clock source: + * + * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) + * + * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) + * + * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) + * or HSI_VALUE(*) multiplied by the PLL factors. + * + * (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * + * (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value + * 8 MHz or 25 MHz, depedning on the product used), user has to ensure + * that HSE_VALUE is same as the real frequency of the crystal used. + * Otherwise, this function may have wrong result. + * + * - The result of this function could be not correct when using fractional + * value for HSE crystal. + * @param None + * @retval None + */ +void SystemCoreClockUpdate (void) +{ + uint32_t tmp = 0, pllmull = 0, pllsource = 0; + +#ifdef STM32F10X_CL + uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; +#endif /* STM32F10X_CL */ + +#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + uint32_t prediv1factor = 0; +#endif /* STM32F10X_LD_VL or STM32F10X_MD_VL or STM32F10X_HD_VL */ + + /* Get SYSCLK source -------------------------------------------------------*/ + tmp = RCC->CFGR & RCC_CFGR_SWS; + + switch (tmp) + { + case 0x00: /* HSI used as system clock */ + SystemCoreClock = HSI_VALUE; + break; + case 0x04: /* HSE used as system clock */ + SystemCoreClock = HSE_VALUE; + break; + case 0x08: /* PLL used as system clock */ + + /* Get PLL clock source and multiplication factor ----------------------*/ + pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; + pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; + +#ifndef STM32F10X_CL + pllmull = ( pllmull >> 18) + 2; + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + { + #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + #else + /* HSE selected as PLL clock entry */ + if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET) + {/* HSE oscillator clock divided by 2 */ + SystemCoreClock = (HSE_VALUE >> 1) * pllmull; + } + else + { + SystemCoreClock = HSE_VALUE * pllmull; + } + #endif + } +#else + pllmull = pllmull >> 18; + + if (pllmull != 0x0D) + { + pllmull += 2; + } + else + { /* PLL multiplication factor = PLL input clock * 6.5 */ + pllmull = 13 / 2; + } + + if (pllsource == 0x00) + { + /* HSI oscillator clock divided by 2 selected as PLL clock entry */ + SystemCoreClock = (HSI_VALUE >> 1) * pllmull; + } + else + {/* PREDIV1 selected as PLL clock entry */ + + /* Get PREDIV1 clock source and division factor */ + prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC; + prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; + + if (prediv1source == 0) + { + /* HSE oscillator clock selected as PREDIV1 clock entry */ + SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; + } + else + {/* PLL2 clock selected as PREDIV1 clock entry */ + + /* Get PREDIV2 division factor and PLL2 multiplication factor */ + prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4) + 1; + pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8 ) + 2; + SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull; + } + } +#endif /* STM32F10X_CL */ + break; + + default: + SystemCoreClock = HSI_VALUE; + break; + } + + /* Compute HCLK clock frequency ----------------*/ + /* Get HCLK prescaler */ + tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; + /* HCLK clock frequency */ + SystemCoreClock >>= tmp; +} + +/** + * @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers. + * @param None + * @retval None + */ +static void SetSysClock(void) +{ +#ifdef SYSCLK_FREQ_HSE + SetSysClockToHSE(); +#elif defined SYSCLK_FREQ_24MHz + SetSysClockTo24(); +#elif defined SYSCLK_FREQ_36MHz + SetSysClockTo36(); +#elif defined SYSCLK_FREQ_48MHz + SetSysClockTo48(); +#elif defined SYSCLK_FREQ_56MHz + SetSysClockTo56(); +#elif defined SYSCLK_FREQ_72MHz + SetSysClockTo72(); +#endif + + /* If none of the define above is enabled, the HSI is used as System clock + source (default after reset) */ +} + +/** + * @brief Setup the external memory controller. Called in startup_stm32f10x.s + * before jump to __main + * @param None + * @retval None + */ +#ifdef DATA_IN_ExtSRAM +/** + * @brief Setup the external memory controller. + * Called in startup_stm32f10x_xx.s/.c before jump to main. + * This function configures the external SRAM mounted on STM3210E-EVAL + * board (STM32 High density devices). This SRAM will be used as program + * data memory (including heap and stack). + * @param None + * @retval None + */ +void SystemInit_ExtMemCtl(void) +{ +/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is + required, then adjust the Register Addresses */ + + /* Enable FSMC clock */ + RCC->AHBENR = 0x00000114; + + /* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */ + RCC->APB2ENR = 0x000001E0; + +/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/ +/*---------------- SRAM Address lines configuration -------------------------*/ +/*---------------- NOE and NWE configuration --------------------------------*/ +/*---------------- NE3 configuration ----------------------------------------*/ +/*---------------- NBL0, NBL1 configuration ---------------------------------*/ + + GPIOD->CRL = 0x44BB44BB; + GPIOD->CRH = 0xBBBBBBBB; + + GPIOE->CRL = 0xB44444BB; + GPIOE->CRH = 0xBBBBBBBB; + + GPIOF->CRL = 0x44BBBBBB; + GPIOF->CRH = 0xBBBB4444; + + GPIOG->CRL = 0x44BBBBBB; + GPIOG->CRH = 0x44444B44; + +/*---------------- FSMC Configuration ---------------------------------------*/ +/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/ + + FSMC_Bank1->BTCR[4] = 0x00001011; + FSMC_Bank1->BTCR[5] = 0x00000200; +} +#endif /* DATA_IN_ExtSRAM */ + +#ifdef SYSCLK_FREQ_HSE +/** + * @brief Selects HSE as System clock source and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockToHSE(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + +#ifndef STM32F10X_CL + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#else + if (HSE_VALUE <= 24000000) + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; + } + else + { + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + } +#endif /* STM32F10X_CL */ +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + + /* Select HSE as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSE; + + /* Wait till HSE is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x04) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_24MHz +/** + * @brief Sets System clock frequency to 24MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo24(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { +#if !defined STM32F10X_LD_VL && !defined STM32F10X_MD_VL && !defined STM32F10X_HD_VL + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 0 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_0; +#endif + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); + + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } +#elif defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL) + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1_Div2 | RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: = (HSE / 2) * 6 = 24 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_36MHz +/** + * @brief Sets System clock frequency to 36MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo36(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); + + /*!< PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 10 = 4 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV10); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + +#else + /* PLL configuration: PLLCLK = (HSE / 2) * 9 = 36 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLXTPRE_HSE_Div2 | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#elif defined SYSCLK_FREQ_48MHz +/** + * @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo48(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 1 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_1; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL6); +#else + /* PLL configuration: PLLCLK = HSE * 6 = 48 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL6); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_56MHz +/** + * @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo56(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL7); +#else + /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL7); + +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} + +#elif defined SYSCLK_FREQ_72MHz +/** + * @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 + * and PCLK1 prescalers. + * @note This function should be used only after reset. + * @param None + * @retval None + */ +static void SetSysClockTo72(void) +{ + __IO uint32_t StartUpCounter = 0, HSEStatus = 0; + + /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/ + /* Enable HSE */ + RCC->CR |= ((uint32_t)RCC_CR_HSEON); + + /* Wait till HSE is ready and if Time out is reached exit */ + do + { + HSEStatus = RCC->CR & RCC_CR_HSERDY; + StartUpCounter++; + } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); + + if ((RCC->CR & RCC_CR_HSERDY) != RESET) + { + HSEStatus = (uint32_t)0x01; + } + else + { + HSEStatus = (uint32_t)0x00; + } + + if (HSEStatus == (uint32_t)0x01) + { + /* Enable Prefetch Buffer */ + FLASH->ACR |= FLASH_ACR_PRFTBE; + + /* Flash 2 wait state */ + FLASH->ACR &= (uint32_t)((uint32_t)~FLASH_ACR_LATENCY); + FLASH->ACR |= (uint32_t)FLASH_ACR_LATENCY_2; + + + /* HCLK = SYSCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; + + /* PCLK2 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; + + /* PCLK1 = HCLK */ + RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; + +#ifdef STM32F10X_CL + /* Configure PLLs ------------------------------------------------------*/ + /* PLL2 configuration: PLL2CLK = (HSE / 5) * 8 = 40 MHz */ + /* PREDIV1 configuration: PREDIV1CLK = PLL2 / 5 = 8 MHz */ + + RCC->CFGR2 &= (uint32_t)~(RCC_CFGR2_PREDIV2 | RCC_CFGR2_PLL2MUL | + RCC_CFGR2_PREDIV1 | RCC_CFGR2_PREDIV1SRC); + RCC->CFGR2 |= (uint32_t)(RCC_CFGR2_PREDIV2_DIV5 | RCC_CFGR2_PLL2MUL8 | + RCC_CFGR2_PREDIV1SRC_PLL2 | RCC_CFGR2_PREDIV1_DIV5); + + /* Enable PLL2 */ + RCC->CR |= RCC_CR_PLL2ON; + /* Wait till PLL2 is ready */ + while((RCC->CR & RCC_CR_PLL2RDY) == 0) + { + } + + + /* PLL configuration: PLLCLK = PREDIV1 * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)~(RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLSRC_PREDIV1 | + RCC_CFGR_PLLMULL9); +#else + /* PLL configuration: PLLCLK = HSE * 9 = 72 MHz */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | + RCC_CFGR_PLLMULL)); + RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | RCC_CFGR_PLLMULL9); +#endif /* STM32F10X_CL */ + + /* Enable PLL */ + RCC->CR |= RCC_CR_PLLON; + + /* Wait till PLL is ready */ + while((RCC->CR & RCC_CR_PLLRDY) == 0) + { + } + + /* Select PLL as system clock source */ + RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); + RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; + + /* Wait till PLL is used as system clock source */ + while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08) + { + } + } + else + { /* If HSE fails to start-up, the application will have wrong clock + configuration. User can add here some code to deal with this error */ + } +} +#endif + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |