STM32G474 的HRTIM 标准库程序

以下是一个简单的基于 STM32CubeIDE 的 STM32G474 HRTIM 标准库程序示例：

#include "stm32g4xx.h"
#include "stm32g4xx_hal.h"
#include "stm32g4xx_hal_hrtim.h"

#define HRTIM_TIMER_ID HRTIM_TIMERINDEX_TIMER_A

HRTIM_HandleTypeDef hhrtim1;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_HRTIM1_Init(void);

int main(void) {
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_HRTIM1_Init();
  HAL_HRTIM_WaveformCounterStart(&hhrtim1, HRTIM_TIMER_ID);
  while (1);
}

void SystemClock_Config(void) {
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = 1;
  RCC_OscInitStruct.PLL.PLLN = 10;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
    Error_Handler();
  }

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) {
    Error_Handler();
  }
  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_HRTIM1;
  PeriphClkInitStruct.Hrtim1ClockSelection = RCC_HRTIM1CLK_PLLCLK;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) {
    Error_Handler();
  }
}

static void MX_HRTIM1_Init(void) {
  HRTIM_TimeBaseCfgTypeDef pTimeBaseCfg = {0};
  HRTIM_TimerCfgTypeDef pTimerCfg = {0};
  HRTIM_OutputCfgTypeDef pOutputCfg = {0};

  hhrtim1.Instance = HRTIM1;
  hhrtim1.Init.HRTIMInterruptResquests = HRTIM_IT_NONE;
  hhrtim1.Init.SyncOptions = HRTIM_SYNCOPTION_NONE;
  if (HAL_HRTIM_Init(&hhrtim1) != HAL_OK) {
    Error_Handler();
  }

  pTimeBaseCfg.Period = 0xFF;
  pTimeBaseCfg.RepetitionCounter = 0x00;
  pTimeBaseCfg.PrescalerRatio = HRTIM_PRESCALERRATIO_MUL32;
  pTimeBaseCfg.Mode = HRTIM_MODE_CONTINUOUS;
  if (HAL_HRTIM_TimeBaseConfig(&hhrtim1, HRTIM_TIMER_ID, &pTimeBaseCfg) != HAL_OK) {
    Error_Handler();
  }

  pTimerCfg.InterruptRequests = HRTIM_TIM_IT_NONE;
  pTimerCfg.DMARequests = HRTIM_TIM_DMA_NONE;
  pTimerCfg.DMASrcAddress = 0x00000000;
  pTimerCfg.DMADstAddress = 0x00000000;
  pTimerCfg.DMASize = 0x1;
  pTimerCfg.HalfModeEnable = HRTIM_HALFMODE_DISABLED;
  pTimerCfg.StartOnSync = HRTIM_SYNCSTART_DISABLED;
  pTimerCfg.ResetOnSync = HRTIM_SYNCRESET_DISABLED;
  pTimerCfg.DACSynchro = HRTIM_DACSYNC_NONE;
  pTimerCfg.PreloadEnable = HRTIM_PRELOAD_DISABLED;
  pTimerCfg.UpdateGating = HRTIM_UPDATEGATING_INDEPENDENT;
  pTimerCfg.BurstMode = HRTIM_TIMERBURSTMODE_MAINTAINCLOCK;
  pTimerCfg.RepetitionUpdate = HRTIM_UPDATEONREPETITION_DISABLED;
  pTimerCfg.ReSyncUpdate = HRTIM_TIMERESYNC_UPDATE_UNCONDITIONAL;
  if (HAL_HRTIM_TimerConfig(&hhrtim1, HRTIM_TIMER_ID, &pTimerCfg) != HAL_OK) {
    Error_Handler();
  }

  pOutputCfg.Polarity = HRTIM_OUTPUTPOLARITY_HIGH;
  pOutputCfg.SetSource = HRTIM_OUTPUTSET_NONE;
  pOutputCfg.ResetSource = HRTIM_OUTPUTRESET_NONE;
  pOutputCfg.IdleMode = HRTIM_OUTPUTIDLEMODE_NONE;
  pOutputCfg.IdleState = HRTIM_OUTPUTIDLESTATE_INACTIVE;
  if (HAL_HRTIM_WaveformOutputConfig(&hhrtim1, HRTIM_TIMER_ID, HRTIM_OUTPUT_TA1, &pOutputCfg) != HAL_OK) {
    Error_Handler();
  }

  if (HAL_HRTIM_WaveformCounterStart(&hhrtim1, HRTIM_TIMER_ID) != HAL_OK) {
    Error_Handler();
  }

  if (HAL_HRTIM_WaveformSetOutputLevel(&hhrtim1, HRTIM_TIMER_ID, HRTIM_OUTPUT_TA1, HRTIM_OUTPUTLEVEL_ACTIVE) != HAL_OK) {
    Error_Handler();
  }
}

static void MX_GPIO_Init(void) {
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  __HAL_RCC_GPIOA_CLK_ENABLE();
  GPIO_InitStruct.Pin = 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_AF2_HRTIM1;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}

这个程序的作用是将 HRTIM1 的 Timer A 的输出引脚（PA8）配置为高电平。你可以根据需要修改各种 HRTIM 的配置参数，以实现你的应用需求。