一、在cubemx下RTC配置调试实例测试

一、rtc的时钟有lse提供。
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二、选择rtc唤醒与闹钟功能

内部参数介绍

闹钟配置

在配置时间时，注意将时间信息存储起来，防止复位后时间重新配置。

	if(HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR0)!= 0x55AA)//判断标志位是否配置过，没有则进入if进行配置	
	{			
		  sTime.Hours = 0x23;
		  sTime.Minutes = 0x59;
		  sTime.Seconds = 0x55;
		  sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
		  sTime.StoreOperation = RTC_STOREOPERATION_RESET;
		  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
		  {
		    Error_Handler();
		  }
		  sDate.WeekDay = RTC_WEEKDAY_FRIDAY;
		  sDate.Month = RTC_MONTH_OCTOBER;
		  sDate.Date = 0x25;
		  sDate.Year = 0x24;
		  if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
		  {
		    Error_Handler();
		  }
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR0, 0x55AA);//写入标志位
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR1, sDate.Year );//写入标志位	
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR2, sDate.Date);//写入标志位
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR3, sDate.Month);//写入标志位	
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR4, sDate.WeekDay);//写入标志位
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR5, sTime.Hours);//写入标志位	
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR6, sTime.Minutes);//写入标志位
			HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR7, sTime.Seconds);//写入标志位	
	}
 /** Enable the Alarm A
  */
  sAlarm.AlarmTime.Hours = 0x0;
  sAlarm.AlarmTime.Minutes = 0x0;
  sAlarm.AlarmTime.Seconds = 0x5;
  sAlarm.AlarmTime.SubSeconds = 0x0;
  sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
  sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;
  sAlarm.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY;//每天提示，当开启掩码功能只在设定的星期和日期提示
  sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
  sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;//星期或日期
  sAlarm.AlarmDateWeekDay = 0x1;//日期
  sAlarm.Alarm = RTC_ALARM_A;
  if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BCD) != HAL_OK)
  {
    Error_Handler();
  }

  /** Enable the WakeUp
  */
  if (HAL_RTCEx_SetWakeUpTimer_IT(&hrtc, 0, RTC_WAKEUPCLOCK_CK_SPRE_16BITS) != HAL_OK)
  {
    Error_Handler();
  }

在这里插入图片描述
开启电源时钟

void HAL_RTC_MspInit(RTC_HandleTypeDef* rtcHandle)
{

  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
  if(rtcHandle->Instance==RTC)
  {
    /* USER CODE BEGIN RTC_MspInit 0 */
 	RCC_OscInitTypeDef RCC_OscInitStruct;
    __HAL_RCC_PWR_CLK_ENABLE();//使能电源时钟PWR
	HAL_PWR_EnableBkUpAccess();//取消备份区域写保护
	RCC_OscInitStruct.OscillatorType=RCC_OSCILLATORTYPE_LSE;//LSE配置
    RCC_OscInitStruct.PLL.PLLState=RCC_PLL_NONE;
    RCC_OscInitStruct.LSEState=RCC_LSE_ON;                  //RTC使用LSE
    HAL_RCC_OscConfig(&RCC_OscInitStruct);
		
  /* USER CODE END RTC_MspInit 0 */
...
}

在复位函数中添加关闭时钟配置
void HAL_RTC_MspDeInit(RTC_HandleTypeDef* rtcHandle)
{

  if(rtcHandle->Instance==RTC)
  {
  /* USER CODE BEGIN RTC_MspDeInit 0 */
 
  /* USER CODE END RTC_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_RTC_DISABLE();

    /* RTC interrupt Deinit */
    HAL_NVIC_DisableIRQ(RTC_WKUP_IRQn);
    HAL_NVIC_DisableIRQ(RTC_Alarm_IRQn);
  /* USER CODE BEGIN RTC_MspDeInit 1 */
   HAL_PWR_DisableBkUpAccess();
    __HAL_RCC_PWR_CLK_DISABLE();
  /* USER CODE END RTC_MspDeInit 1 */
  }
}

在闹钟回调和唤醒回调中添加

//RTC闹钟A中断处理回调函数
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
    printf("ALARM A!\r\n");
}
void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc)
{
   RTC_TimeTypeDef RTC_TimeStruct;
    RTC_DateTypeDef RTC_DateStruct;
	uint8_t buf[40];
	HAL_RTC_GetTime(hrtc,&RTC_TimeStruct,RTC_FORMAT_BIN);
	sprintf((char*)buf,"Time: %02d:%02d:%02d",RTC_TimeStruct.Hours,RTC_TimeStruct.Minutes,RTC_TimeStruct.Seconds);
	printf("%s\r\n",buf);
	
	HAL_RTC_GetDate(hrtc,&RTC_DateStruct,RTC_FORMAT_BIN);
	sprintf((char*)buf,"Date: 20%02d-%02d-%02d  Day %d",RTC_DateStruct.Year,RTC_DateStruct.Month,RTC_DateStruct.Date,RTC_DateStruct.WeekDay);
	printf("%s\r\n",buf);	
}