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authorTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:24:18 +0100
committerTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:29:25 +0100
commit40e04e3772726829d66c12e69f24b03920d79c67 (patch)
tree636811bad956798c9d5d22de9e7ba8c799b8d791 /tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM1_Synchro/main.c
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o Moving tinyprintf and stm libraries under thirdparty.
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-/**
- ******************************************************************************
- * @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>&copy; 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****/