mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
synced 2025-05-02 22:17:06 +08:00
302 lines
9.2 KiB
C
302 lines
9.2 KiB
C
/**
|
|
******************************************************************************
|
|
* @file TIM/TIM_7PWMOutput/Src/main.c
|
|
* @author MCD Application Team
|
|
* @brief This sample code shows how to use STM32F4xx TIM HAL API to generate
|
|
* 7 signals in PWM.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2017 STMicroelectronics.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* This software component is licensed by ST under BSD 3-Clause license,
|
|
* the "License"; You may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at:
|
|
* opensource.org/licenses/BSD-3-Clause
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "main.h"
|
|
|
|
/** @addtogroup STM32F4xx_HAL_Examples
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup TIM_7PWMOutput
|
|
* @{
|
|
*/
|
|
|
|
/* Private typedef -----------------------------------------------------------*/
|
|
/* Private define ------------------------------------------------------------*/
|
|
/* Private macro -------------------------------------------------------------*/
|
|
/* Private variables ---------------------------------------------------------*/
|
|
/* Period value */
|
|
uint32_t uwPeriod = 0;
|
|
/* Pulses value */
|
|
uint32_t uwPulse1, uwPulse2, uwPulse3, uwPulse4 = 0;
|
|
|
|
/* Timer handler declaration */
|
|
TIM_HandleTypeDef TimHandle;
|
|
|
|
/* Timer Output Compare Configuration Structure declaration */
|
|
TIM_OC_InitTypeDef sConfig;
|
|
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
static void SystemClock_Config(void);
|
|
static void Error_Handler(void);
|
|
|
|
/* Private functions ---------------------------------------------------------*/
|
|
|
|
/**
|
|
* @brief Main program
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
int main(void)
|
|
{
|
|
/* STM32F4xx HAL library initialization:
|
|
- Configure the Flash prefetch, instruction and Data caches
|
|
- Configure the Systick to generate an interrupt each 1 msec
|
|
- Set NVIC Group Priority to 4
|
|
- Global MSP (MCU Support Package) initialization
|
|
*/
|
|
HAL_Init();
|
|
|
|
/* Configure the system clock to 180 MHz */
|
|
SystemClock_Config();
|
|
|
|
/* Configure LED3 */
|
|
BSP_LED_Init(LED3);
|
|
|
|
/* Compute the Timer period to generate a signal frequency at 17.57 Khz */
|
|
uwPeriod = (SystemCoreClock / 17570 ) - 1;
|
|
|
|
/* Compute Pulse1 value to generate a duty cycle at 50% for channel 1 and 1N */
|
|
uwPulse1 = (5 * (uwPeriod - 1)) / 10;
|
|
/* Compute Pulse2 value to generate a duty cycle at 37.5% for channel 2 and 2N */
|
|
uwPulse2 = (375 * (uwPeriod - 1)) / 1000;
|
|
/* Compute Pulse3 value to generate a duty cycle at 25% for channel 3 and 3N */
|
|
uwPulse3 = (25 * (uwPeriod - 1)) / 100;
|
|
/* Compute Pulse4 value to generate a duty cycle at 12.5% for channel 4 */
|
|
uwPulse4 = (125 * (uwPeriod- 1)) / 1000;
|
|
|
|
/*##-1- Configure the TIM peripheral #######################################*/
|
|
/* Initialize TIMx peripheral as follow:
|
|
+ Prescaler = 0
|
|
+ Period = uwPeriod (to have an output frequency equal to 17.57 KHz)
|
|
+ ClockDivision = 0
|
|
+ Counter direction = Up
|
|
*/
|
|
TimHandle.Instance = TIM1;
|
|
|
|
TimHandle.Init.Period = uwPeriod;
|
|
TimHandle.Init.Prescaler = 0;
|
|
TimHandle.Init.ClockDivision = 0;
|
|
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
|
|
TimHandle.Init.RepetitionCounter = 0;
|
|
TimHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
|
|
|
|
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
|
|
{
|
|
/* Initialization Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/*##-2- Configure the PWM channels #########################################*/
|
|
/* Common configuration for all channels */
|
|
sConfig.OCMode = TIM_OCMODE_PWM2;
|
|
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
|
|
sConfig.OCPolarity = TIM_OCPOLARITY_LOW;
|
|
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
|
|
sConfig.OCIdleState = TIM_OCIDLESTATE_SET;
|
|
sConfig.OCNIdleState= TIM_OCNIDLESTATE_RESET;
|
|
|
|
/* Set the pulse value for channel 1 */
|
|
sConfig.Pulse = uwPulse1;
|
|
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1) != HAL_OK)
|
|
{
|
|
/* Configuration Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Set the pulse value for channel 2 */
|
|
sConfig.Pulse = uwPulse2;
|
|
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2) != HAL_OK)
|
|
{
|
|
/* Configuration Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Set the pulse value for channel 3 */
|
|
sConfig.Pulse = uwPulse3;
|
|
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3) != HAL_OK)
|
|
{
|
|
/* Configuration Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Set the pulse value for channel 4 */
|
|
sConfig.Pulse = uwPulse4;
|
|
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_4) != HAL_OK)
|
|
{
|
|
/* Configuration Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/*##-3- Start PWM signals generation #######################################*/
|
|
/* Start channel 1 */
|
|
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
|
|
{
|
|
/* Starting Error */
|
|
Error_Handler();
|
|
}
|
|
/* Start channel 1N */
|
|
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
|
|
{
|
|
/* Starting Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Start channel 2 */
|
|
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
|
|
{
|
|
/* Starting Error */
|
|
Error_Handler();
|
|
}
|
|
/* Start channel 2N */
|
|
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
|
|
{
|
|
/* Starting Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Start channel 3 */
|
|
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
|
|
{
|
|
/* Starting Error */
|
|
Error_Handler();
|
|
}
|
|
/* Start channel 3N */
|
|
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
|
|
{
|
|
/* Starting Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Start channel 4 */
|
|
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4) != HAL_OK)
|
|
{
|
|
/* Starting Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief This function is executed in case of error occurrence.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void Error_Handler(void)
|
|
{
|
|
/* Turn LED3 on */
|
|
BSP_LED_On(LED3);
|
|
while(1)
|
|
{
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief System Clock Configuration
|
|
* The system Clock is configured as follow :
|
|
* System Clock source = PLL (HSE)
|
|
* SYSCLK(Hz) = 180000000
|
|
* HCLK(Hz) = 180000000
|
|
* AHB Prescaler = 1
|
|
* APB1 Prescaler = 4
|
|
* APB2 Prescaler = 2
|
|
* HSE Frequency(Hz) = 25000000
|
|
* PLL_M = 25
|
|
* PLL_N = 360
|
|
* PLL_P = 2
|
|
* PLL_Q = 7
|
|
* VDD(V) = 3.3
|
|
* Main regulator output voltage = Scale1 mode
|
|
* Flash Latency(WS) = 5
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void SystemClock_Config(void)
|
|
{
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct;
|
|
RCC_OscInitTypeDef RCC_OscInitStruct;
|
|
|
|
/* Enable Power Control clock */
|
|
__HAL_RCC_PWR_CLK_ENABLE();
|
|
|
|
/* The voltage scaling allows optimizing the power consumption when the device is
|
|
clocked below the maximum system frequency, to update the voltage scaling value
|
|
regarding system frequency refer to product datasheet. */
|
|
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
|
|
|
|
/* Enable HSE Oscillator and activate PLL with HSE as source */
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
|
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
|
|
RCC_OscInitStruct.PLL.PLLM = 25;
|
|
RCC_OscInitStruct.PLL.PLLN = 360;
|
|
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
|
|
RCC_OscInitStruct.PLL.PLLQ = 7;
|
|
HAL_RCC_OscConfig(&RCC_OscInitStruct);
|
|
|
|
/* Activate the Over-Drive mode */
|
|
HAL_PWREx_EnableOverDrive();
|
|
|
|
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
|
|
clocks dividers */
|
|
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
|
|
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
|
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
|
|
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
|
|
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
|
|
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
|
|
}
|
|
|
|
#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) */
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|