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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/OnePulse/main.c
parent2fff65aed2477a503c72629d27e2a330d30c02d1 (diff)
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o Moving tinyprintf and stm libraries under thirdparty.
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-/**
- ******************************************************************************
- * @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>&copy; 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****/