STM32L151 使用cube配置RTC 睡眠唤醒闹钟-闹钟方式

1、cube配置

2、睡眠唤醒闹钟程序：注意闹钟必须和时间对应一样否则无法产生中断，小编在这入坑，希望帮到其他人；

void RTC_PowerLow(void)
{
//rtc struct init
RTC_TimeTypeDef sTime = {0};
RTC_DateTypeDef sDate = {0};
RTC_AlarmTypeDef sAlarm = {0};

/** Initialize RTC and set the Time and Date : 06:00:00
*/
sTime.Hours = 0x6;
sTime.Minutes = 0x00;
sTime.Seconds = 0x00;
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_MONDAY;
sDate.Month = RTC_MONTH_JANUARY;
sDate.Date = 0x1;
sDate.Year = 0x19;

if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
{
Error_Handler();
}
/** Enable the Alarm A : 06:00:05
*/
sAlarm.AlarmTime.Hours = 0x06;
sAlarm.AlarmTime.Minutes = 0x00;
sAlarm.AlarmTime.Seconds = 0x05;
sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;
sAlarm.AlarmMask = RTC_ALARMMASK_NONE;
sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
sAlarm.AlarmDateWeekDay = 0x1;
sAlarm.Alarm = RTC_ALARM_A;
if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BCD) != HAL_OK)
{
Error_Handler();
}

}

3、进入低功耗程序

RTC_PowerLow();

               __HAL_RTC_WAKEUPTIMER_EXTI_CLEAR_FLAG();   //clear flag
               __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);               //clear Power wakeup flag

               HAL_PWREx_EnableUltraLowPower();
               HAL_PWREx_EnableFastWakeUp();

               HAL_SuspendTick();
               HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON,PWR_SLEEPENTRY_WFI);   //all interrupt
               HAL_ResumeTick();

               LowPowerResumeConfig();

               __HAL_RTC_WAKEUPTIMER_EXTI_DISABLE_IT();   //disable wakeup timer
               __HAL_RTC_WAKEUPTIMER_EXTI_CLEAR_FLAG();   //clear flag
               __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);               //clear Power wakeup flag

STM32L151 使用cube配置RTC 睡眠唤醒闹钟-闹钟方式

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