STM32L151，待机模式下，分别单独使用PWR_WakeUpPin_1和RTC闹钟唤醒均能唤醒，可两种唤醒方式同时使用时却均唤醒不了，麻烦大家

昨日的浪子 · 发表于 2017-8-17 13:35:26

void Sys_Standby(void)
{
printf("\r\n 进入待机 ");

// RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); //使能PWR外设时钟
PWR_WakeUpPinCmd(PWR_WakeUpPin_1, ENABLE);  //使能唤醒管脚功能
PWR_WakeUpPinCmd(PWR_WakeUpPin_2, ENABLE);
PWR_EnterSTANDBYMode();    //进入待命（STANDBY）模式
}

void Rtc_Init(void)
{
RTC_InitTypeDef RTC_InitStructure;
RTC_TimeTypeDef  RTC_TimeStruct;

/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);

/* Allow access to RTC */
PWR_RTCAccessCmd(ENABLE);

/* Reset RTC Domain */
RCC_RTCResetCmd(ENABLE);
RCC_RTCResetCmd(DISABLE);

// xw
/* Enable the LSI OSC */
RCC_LSICmd(ENABLE);
/* Wait till LSI is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET);
// RtcWkup_Gpio_Init(); //
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);

/* Configure the RTC data register and RTC prescaler */
RTC_InitStructure.RTC_AsynchPrediv = 0x7F;
RTC_InitStructure.RTC_SynchPrediv  = 0xFF;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_Init(&RTC_InitStructure);

/* Set the time to 00h 00mn 00s AM */
RTC_TimeStruct.RTC_H12    = RTC_H12_AM;
RTC_TimeStruct.RTC_Hours = 0x00;
RTC_TimeStruct.RTC_Minutes = 0x00;
RTC_TimeStruct.RTC_Seconds = 0x00;
RTC_SetTime(RTC_Format_BIN, &RTC_TimeStruct);
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);

/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();

Rtc_AlarmConfig();
}

// 当用来唤醒时, 便不会进入中断函数
void RTC_Alarm_IRQHandler(void)
{
  /* Check on the AlarmA falg and on the number of interrupts per Second (60*8) */
  if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
  {
/* Clear RTC AlarmA Flags */
RTC_ClearITPendingBit(RTC_IT_ALRA);

// printf("\r\n 一场游戏一场梦 ");
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
RtcAlarmTime_Set();
// Rtc_AlarmConfig();
  }
  /* Clear the EXTIL line 17 */
  EXTI_ClearITPendingBit(EXTI_Line17);
}

void Rtc_AlarmConfig(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
//  RTC_AlarmTypeDef RTC_AlarmStructure;
NVIC_InitTypeDef NVIC_InitStructure;

/* EXTI configuration */
EXTI_ClearITPendingBit(EXTI_Line17);
EXTI_InitStructure.EXTI_Line = EXTI_Line17;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);

/* Enable the RTC Alarm Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = RTC_Alarm_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

/* Set the alarmA Masks */
// xw
//  RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay|RTC_AlarmMask_Hours|RTC_AlarmMask_Minutes;
//  RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_All;
//  RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds += 10;
//  RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
RtcAlarmTime_Set();

/* Set AlarmA subseconds and enable SubSec Alarm : generate 8 interripts per Second */
RTC_AlarmSubSecondConfig(RTC_Alarm_A, 0xFF, RTC_AlarmSubSecondMask_SS14_5);

// RTC_OutputConfig(RTC_Output_AlarmA, RTC_OutputPolarity_High);

/* Enable AlarmA interrupt */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);

/* Enable the alarmA */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
}

// 设置RTC 报警时间间隔
void RtcAlarmTime_Set(void)
{
RTC_AlarmTypeDef RTC_AlarmStructure;

// xw
RTC_GetTime(RTC_Format_BIN, &(RTC_AlarmStructure.RTC_AlarmTime));
// printf("rtc %d, %d, %d", RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours, RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes, RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds);
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = (RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds+5)%60;
/* Set the alarmA Masks */
    RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay|RTC_AlarmMask_Hours|RTC_AlarmMask_Minutes;
    RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
}