lora_bl/Core/Src/RTC_SLEEP.c

//
// Created by EDZ on 25-9-16.
//

#include "../Inc/RTC_SLEEP.h"



void RTC_Sleep_Enter_Fun() {
    /* 设置初始时间 */
    RTC_TimeTypeDef sTime = {0};
    RTC_DateTypeDef sDate = {0};

    sTime.Hours = 0x12;
    sTime.Minutes = 0x00;
    sTime.Seconds = 0x00;
    HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD);

    sDate.WeekDay = RTC_WEEKDAY_MONDAY;
    sDate.Month = RTC_MONTH_SEPTEMBER;
    sDate.Date = 0x16;
    sDate.Year = 0x25;
    HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD);

    /* 设置闹钟：20 秒后触发 */
    RTC_AlarmTypeDef sAlarm = {0};
    sAlarm.AlarmTime.Hours = sTime.Hours;
    sAlarm.AlarmTime.Minutes = sTime.Minutes;
    sAlarm.AlarmTime.Seconds = (sTime.Seconds + 50) % 60;
    sAlarm.Alarm = RTC_ALARM_A;

    HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BCD);

    /* 进入 STANDBY 模式 */
    __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);               // 清除唤醒标志
    HAL_PWR_EnterSTANDBYMode();                      // MCU 进入 STANDBY

    // MCU 唤醒后会从 main() 重新开始运行
}