STM32CubeMX F405 TIM8 3路输出比较（互补输出）

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    tim.c
  * @brief   This file provides code for the configuration
  *          of the TIM instances.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2023 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "tim.h"

/* USER CODE BEGIN 0 */
uint16_t T8_f1 = 250; //168000000/84/100 = 8khz
uint16_t T8_f2 = 250; //168000000/84/100 = 8khz
uint16_t T8_f3 = 250; //168000000/84/100 = 8khz
 
float T8_Duty_Cycle1 = 0.5f;
float T8_Duty_Cycle2 = 0.5f;
float T8_Duty_Cycle3 = 0.5f;

/* USER CODE END 0 */

TIM_HandleTypeDef htim8;

/* TIM8 init function */
void MX_TIM8_Init(void)
{

  /* USER CODE BEGIN TIM8_Init 0 */

  /* USER CODE END TIM8_Init 0 */

  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
  TIM_MasterConfigTypeDef sMasterConfig = {0};
  TIM_OC_InitTypeDef sConfigOC = {0};
  TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};

  /* USER CODE BEGIN TIM8_Init 1 */

  /* USER CODE END TIM8_Init 1 */
  htim8.Instance = TIM8;
  htim8.Init.Prescaler = 83;
  htim8.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim8.Init.Period = 65535;
  htim8.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim8.Init.RepetitionCounter = 0;
  htim8.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_Base_Init(&htim8) != HAL_OK)
  {
    Error_Handler();
  }
  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
  if (HAL_TIM_ConfigClockSource(&htim8, &sClockSourceConfig) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_TIM_OC_Init(&htim8) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim8, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sConfigOC.OCMode = TIM_OCMODE_TOGGLE;  //IO口翻转模式
  sConfigOC.Pulse = 0;
  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
  sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
  sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
  sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
  if (HAL_TIM_OC_ConfigChannel(&htim8, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_TIM_OC_ConfigChannel(&htim8, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_TIM_OC_ConfigChannel(&htim8, &sConfigOC, TIM_CHANNEL_3) != HAL_OK)
  {
    Error_Handler();
  }
  sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
  sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
  sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
  sBreakDeadTimeConfig.DeadTime = 8; // 8/168M=47.6ns
  sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
  sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
  sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
  if (HAL_TIMEx_ConfigBreakDeadTime(&htim8, &sBreakDeadTimeConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM8_Init 2 */
	HAL_TIM_OC_Start_IT(&htim8,TIM_CHANNEL_1);
	HAL_TIMEx_OCN_Start(&htim8,TIM_CHANNEL_1);
	
	HAL_TIM_OC_Start_IT(&htim8,TIM_CHANNEL_2);
	HAL_TIMEx_OCN_Start(&htim8,TIM_CHANNEL_2);
	
	HAL_TIM_OC_Start_IT(&htim8,TIM_CHANNEL_3);
	HAL_TIMEx_OCN_Start(&htim8,TIM_CHANNEL_3);
  /* USER CODE END TIM8_Init 2 */
  HAL_TIM_MspPostInit(&htim8);

}

void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
{

  if(tim_baseHandle->Instance==TIM8)
  {
  /* USER CODE BEGIN TIM8_MspInit 0 */

  /* USER CODE END TIM8_MspInit 0 */
    /* TIM8 clock enable */
    __HAL_RCC_TIM8_CLK_ENABLE();

    /* TIM8 interrupt Init */
    HAL_NVIC_SetPriority(TIM8_CC_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(TIM8_CC_IRQn);
  /* USER CODE BEGIN TIM8_MspInit 1 */

  /* USER CODE END TIM8_MspInit 1 */
  }
}
void HAL_TIM_MspPostInit(TIM_HandleTypeDef* timHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(timHandle->Instance==TIM8)
  {
  /* USER CODE BEGIN TIM8_MspPostInit 0 */

  /* USER CODE END TIM8_MspPostInit 0 */

    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();
    __HAL_RCC_GPIOC_CLK_ENABLE();
    /**TIM8 GPIO Configuration
    PA5     ------> TIM8_CH1N
    PB0     ------> TIM8_CH2N
    PB1     ------> TIM8_CH3N
    PC6     ------> TIM8_CH1
    PC7     ------> TIM8_CH2
    PC8     ------> TIM8_CH3
    */
    GPIO_InitStruct.Pin = GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF3_TIM8;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF3_TIM8;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF3_TIM8;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

  /* USER CODE BEGIN TIM8_MspPostInit 1 */

  /* USER CODE END TIM8_MspPostInit 1 */
  }

}

void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
{

  if(tim_baseHandle->Instance==TIM8)
  {
  /* USER CODE BEGIN TIM8_MspDeInit 0 */

  /* USER CODE END TIM8_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_TIM8_CLK_DISABLE();

    /* TIM8 interrupt Deinit */
    HAL_NVIC_DisableIRQ(TIM8_CC_IRQn);
  /* USER CODE BEGIN TIM8_MspDeInit 1 */

  /* USER CODE END TIM8_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */



void HAL_TIM_OC_DelayElapsedCallback(TIM_HandleTypeDef *htim)
{
	uint16_t T8_OC_Count = 0;
	
	if(htim->Instance == TIM8)
	{
		 if(htim->Channel == HAL_TIM_ACTIVE_CHANNEL_1)
		 {
				T8_OC_Count =__HAL_TIM_GET_COMPARE(&htim8,TIM_CHANNEL_1);//获取定时器计数值
				if(GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_6))
				{
					__HAL_TIM_SET_COMPARE(&htim8,TIM_CHANNEL_1,T8_OC_Count + T8_f1 * T8_Duty_Cycle1);
				}
				else
				{
					__HAL_TIM_SET_COMPARE(&htim8,TIM_CHANNEL_1,T8_OC_Count + T8_f1 * (1 - T8_Duty_Cycle1));
				}	 
		 }
		 else
			 if(htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2)
			 {
					T8_OC_Count =__HAL_TIM_GET_COMPARE(&htim8,TIM_CHANNEL_2);//获取定时器计数值
					if(GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_7))
					{
						__HAL_TIM_SET_COMPARE(&htim8,TIM_CHANNEL_2,T8_OC_Count + T8_f2 * T8_Duty_Cycle2);
					}
					else
					{
						__HAL_TIM_SET_COMPARE(&htim8,TIM_CHANNEL_2,T8_OC_Count + T8_f2 * (1 - T8_Duty_Cycle2));
					}	 
			 } 
		 else
			 if(htim->Channel == HAL_TIM_ACTIVE_CHANNEL_3)
			 {
					T8_OC_Count =__HAL_TIM_GET_COMPARE(&htim8,TIM_CHANNEL_3);//获取定时器计数值
					if(GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_8))
					{
						__HAL_TIM_SET_COMPARE(&htim8,TIM_CHANNEL_3,T8_OC_Count + T8_f3 * T8_Duty_Cycle3);
					}
					else
					{
						__HAL_TIM_SET_COMPARE(&htim8,TIM_CHANNEL_3,T8_OC_Count + T8_f3 * (1 - T8_Duty_Cycle3));
					}	 
			 }			
	}
	
}


/* USER CODE END 1 */