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323 lines
10 KiB
C
323 lines
10 KiB
C
/**
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******************************************************************************
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* @file TIM/TIM_Synchronization/Src/main.c
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* @author MCD Application Team
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* @brief This example shows how to command 2 Timers as slaves (TIM3 & TIM4)
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* using a Timer as master (TIM1)
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F4xx_HAL_Examples
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* @{
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*/
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/** @addtogroup TIM_Synchronization
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Timer1 handler declaration: Master */
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TIM_HandleTypeDef TimMasterHandle;
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/* Timer3 handler declaration: Slave1 */
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TIM_HandleTypeDef TimSlave1Handle;
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/* Timer4 handler declaration: Slave2 */
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TIM_HandleTypeDef TimSlave2Handle;
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/* Output compare structure */
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TIM_OC_InitTypeDef sOCConfig;
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/* Master configuration structure */
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TIM_MasterConfigTypeDef sMasterConfig;
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/* Slave configuration structure */
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TIM_SlaveConfigTypeDef sSlaveConfig;
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/* Private function prototypes -----------------------------------------------*/
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static void SystemClock_Config(void);
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static void Error_Handler(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* STM32F4xx HAL library initialization:
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- Configure the Flash prefetch, instruction and Data caches
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- Configure the Systick to generate an interrupt each 1 msec
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- Set NVIC Group Priority to 4
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- Global MSP (MCU Support Package) initialization
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*/
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HAL_Init();
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/* Configure the system clock to 180 MHz */
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SystemClock_Config();
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/* Configure LED3 */
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BSP_LED_Init(LED3);
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/* Set Timers instance */
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TimMasterHandle.Instance = TIM1;
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TimSlave1Handle.Instance = TIM3;
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TimSlave2Handle.Instance = TIM4;
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/*====================== Master configuration : TIM1 =======================*/
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/* Initialize TIM1 peripheral in PWM mode*/
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TimMasterHandle.Init.Period = 255;
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TimMasterHandle.Init.Prescaler = 0;
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TimMasterHandle.Init.ClockDivision = 0;
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TimMasterHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
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TimMasterHandle.Init.RepetitionCounter = 4;
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TimMasterHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
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if(HAL_TIM_PWM_Init(&TimMasterHandle) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/* Configure the PWM_channel_1 */
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sOCConfig.OCMode = TIM_OCMODE_PWM1;
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sOCConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
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sOCConfig.Pulse = 127;
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if(HAL_TIM_PWM_ConfigChannel(&TimMasterHandle, &sOCConfig, TIM_CHANNEL_1) != HAL_OK)
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{
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/* Configuration Error */
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Error_Handler();
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}
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/* Configure TIM1 as master & use the update event as Trigger Output (TRGO) */
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sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
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sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_ENABLE;
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if( HAL_TIMEx_MasterConfigSynchronization(&TimMasterHandle,&sMasterConfig) != HAL_OK)
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{
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/* Configuration Error */
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Error_Handler();
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}
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/*================== End of Master configuration : TIM1 ====================*/
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/*====================== Slave1 configuration : TIM3 =======================*/
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/* Initialize TIM3 peripheral in PWM mode*/
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TimSlave1Handle.Init.Period = 2;
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TimSlave1Handle.Init.Prescaler = 0;
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TimSlave1Handle.Init.ClockDivision = 0;
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TimSlave1Handle.Init.CounterMode = TIM_COUNTERMODE_UP;
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TimSlave1Handle.Init.RepetitionCounter = 0;
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TimSlave1Handle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
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if(HAL_TIM_PWM_Init(&TimSlave1Handle) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/* Configure the PWM_channel_1 */
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sOCConfig.OCMode = TIM_OCMODE_PWM1;
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sOCConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
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sOCConfig.Pulse = 1;
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if(HAL_TIM_PWM_ConfigChannel(&TimSlave1Handle, &sOCConfig, TIM_CHANNEL_1) != HAL_OK)
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{
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/* Configuration Error */
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Error_Handler();
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}
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/* Configure TIM3 in Gated slave mode &
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use the Internal Trigger 0 (ITR0) as trigger source */
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sSlaveConfig.SlaveMode = TIM_SLAVEMODE_GATED;
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sSlaveConfig.InputTrigger = TIM_TS_ITR0;
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if(HAL_TIM_SlaveConfigSynchronization(&TimSlave1Handle, &sSlaveConfig) != HAL_OK)
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{
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/* Configuration Error */
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Error_Handler();
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}
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/*================== End of Slave1 configuration : TIM3 ====================*/
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/*====================== Slave2 configuration : TIM4 =======================*/
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/* Initialize TIM4 peripheral in PWM mode*/
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TimSlave2Handle.Init.Period = 1;
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TimSlave2Handle.Init.Prescaler = 0;
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TimSlave2Handle.Init.ClockDivision = 0;
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TimSlave2Handle.Init.CounterMode = TIM_COUNTERMODE_UP;
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TimSlave2Handle.Init.RepetitionCounter = 0;
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TimSlave2Handle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
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if(HAL_TIM_PWM_Init(&TimSlave2Handle) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/* Configure the PWM_channel_1 */
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sOCConfig.OCMode = TIM_OCMODE_PWM1;
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sOCConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
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sOCConfig.Pulse = 1;
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if(HAL_TIM_PWM_ConfigChannel(&TimSlave2Handle, &sOCConfig, TIM_CHANNEL_1) != HAL_OK)
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{
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/* Configuration Error */
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Error_Handler();
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}
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/* Configure TIM3 in Gated slave mode &
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use the Internal Trigger 0 (ITR0) as trigger source */
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sSlaveConfig.SlaveMode = TIM_SLAVEMODE_GATED;
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sSlaveConfig.InputTrigger = TIM_TS_ITR0;
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if(HAL_TIM_SlaveConfigSynchronization(&TimSlave2Handle, &sSlaveConfig) != HAL_OK)
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{
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/* Configuration Error */
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Error_Handler();
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}
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/*================== End of Slave2 configuration : TIM4 ====================*/
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/* Start Master PWM generation */
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if(HAL_TIM_PWM_Start(&TimMasterHandle, TIM_CHANNEL_1) != HAL_OK)
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{
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/* PWM generation Error */
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Error_Handler();
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}
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/* Start Slave1 PWM generation */
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if(HAL_TIM_PWM_Start(&TimSlave1Handle, TIM_CHANNEL_1) != HAL_OK)
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{
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/* PWM generation Error */
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Error_Handler();
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}
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/* Start Slave2 PWM generation */
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if(HAL_TIM_PWM_Start(&TimSlave2Handle, TIM_CHANNEL_1) != HAL_OK)
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{
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/* PWM generation Error */
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Error_Handler();
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}
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/* Infinite loop */
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while (1)
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{
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}
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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static void Error_Handler(void)
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{
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/* Turn LED3 on */
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BSP_LED_On(LED3);
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while(1)
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{
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 180000000
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* HCLK(Hz) = 180000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 4
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* APB2 Prescaler = 2
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 25
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* PLL_N = 360
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* PLL_P = 2
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* PLL_Q = 7
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 5
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* @param None
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* @retval None
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*/
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static void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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/* Enable Power Control clock */
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__HAL_RCC_PWR_CLK_ENABLE();
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/* The voltage scaling allows optimizing the power consumption when the device is
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clocked below the maximum system frequency, to update the voltage scaling value
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regarding system frequency refer to product datasheet. */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 25;
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RCC_OscInitStruct.PLL.PLLN = 360;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 7;
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HAL_RCC_OscConfig(&RCC_OscInitStruct);
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/* Activate the Over-Drive mode */
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HAL_PWREx_EnableOverDrive();
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t* file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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