STM32 RTC闹钟事件唤醒停止模式

欣欣向荣

急急急！！
大家有没有做过RTC时钟闹钟事件唤醒停止模式？？
STM32 RTC闹钟事件唤醒停止模式。。
火哥，给点帮助！！

笑你像狗

好像是待机才可以RTC唤醒吧

欣欣向荣

已经解决了，我自己写的

欣欣向荣

笑你像狗 发表于 2018-1-8 08:58
好像是待机才可以RTC唤醒吧

是可以的，设置外部中断线17

欣欣向荣

#include "bsp_exti.h"
#include "bsp_led.h"
#include "bsp_usart1.h"
/**
  * @brief  ÅäÖÃǶì×Ïòá¿ÖD¶Ï¿ØÖÆÆ÷NVIC
  * @param  ÎT
  * @retval ÎT
  */
static void NVIC_Configuration(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;
  
  /* Configure one bit for preemption priority */
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
  
  /* ÅäÖ&#195[A|B|C|D|E]13ÎaÖD¶ÏÔ′ */
  NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);               


        NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn;                //RTC諾ÖÖD¶Ï
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;        //ÏèÕ¼óÅÏ輶1λ,′óóÅÏ輶3λ
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;        //ÏèÕ¼óÅÏ輶0λ,′óóÅÏ輶4λ
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;                //ê1Äü¸Ãí¨μàÖD¶Ï
        NVIC_Init(&NVIC_InitStructure);                //¸ù¾YNVIC_InitStructÖDÖ¸¶¨μÄ2Îêy3õê¼»ˉíaéèNVIC¼Ä′æÆ÷

        NVIC_InitStructure.NVIC_IRQChannel = RTCAlarm_IRQn;//RTCÄÖÖóÖD¶Ï
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
       
}

/**
  * @brief  ÅäÖà PC13 ÎaÏßÖD¶Ï¿ú￡¬2￠éèÖÃÖD¶ÏóÅÏ輶
  * @param  ÎT
  * @retval ÎT
  */
void EXTI_Key_Config(void)
{
        GPIO_InitTypeDef GPIO_InitStructure;
        EXTI_InitTypeDef EXTI_InitStructure;

        /* config the extiline(PC13) clock and AFIO clock */
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC  |RCC_APB2Periph_GPIOA| RCC_APB2Periph_AFIO,ENABLE);
                                                                                               
        /* config the NVIC(PC13) */
        NVIC_Configuration();

        /* EXTI line gpio config(PC13) */       
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;      
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;         // éÏà-êäèë
  GPIO_Init(GPIOC, &GPIO_InitStructure);
       

        /* EXTI line(PC13) mode config */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource13);
       
  EXTI_InitStructure.EXTI_Line = EXTI_Line13;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //ϽμÑØÖD¶Ï
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  //ía2¿ÖD¶ÏÏß17
       
         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);
               
}

/*
* oˉêyÃû￡oRTC_Configuration
* Ãèêö  ￡oÅäÖÃRTC
* êäèë  ￡oÎT
* êä3ö  ￡oÎT
* μ÷óà ￡oía2¿μ÷óÃ
*/
void RTC_Configuration(void)
{
        /* Enable PWR and BKP clocks */
        RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
       
        /* Allow access to BKP Domain */
        PWR_BackupAccessCmd(ENABLE);
       
        /* Reset Backup Domain */
        BKP_DeInit();
       
        /* Enable LSE */
        RCC_LSEConfig(RCC_LSE_ON);
       
        /* Wait till LSE is ready */
        while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
        {}
       
        /* Select LSE as RTC Clock Source */
        RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
       
        /* Enable RTC Clock */
        RCC_RTCCLKCmd(ENABLE);
       
        /* Wait for RTC registers synchronization
         * òòÎaRTCê±ÖóêÇμíËùμÄ￡¬Äú»·ê±ÖóêǸßËùμÄ￡¬ËùòÔòaí¬2½
         */
        RTC_WaitForSynchro();
       
        /* Wait until last write operation on RTC registers has finished */
        RTC_WaitForLastTask();
       
        /* Enable the RTC Second */
        RTC_ITConfig(RTC_IT_SEC, ENABLE);
       
        /* Wait until last write operation on RTC registers has finished */
        RTC_WaitForLastTask();
       
        /* Set RTC prescaler: set RTC period to 1sec */
        RTC_SetPrescaler(32767); /* RTC period = RTCCLK/RTC_PR = (32.768 KHz)/(32767+1) = 1HZ */
       
        /* Wait until last write operation on RTC registers has finished */
        RTC_WaitForLastTask();
}

/*
* oˉêyÃû￡oRTC_CheckAndConfig
* Ãèêö  ￡o¼ì2é2￠ÅäÖÃRTC
* êäèë  ￡oóÃóú¶áè¡RTCê±¼äμĽá11ìåÖ¸Õë
* êä3ö  ￡oÎT
* μ÷óà ￡oía2¿μ÷óÃ
*/
void RTC_CheckAndConfig(void)
{
             /*ÔúÆô¶ˉê±¼ì2鱸·Y¼Ä′æÆ÷BKP_DR1￡¬èç1ûÄúèY2»êÇ0xA5A5,
          ÔòDèÖØDÂÅäÖÃê±¼ä2￠ÑˉÎêóû§μ÷Õûê±¼ä*/
        if (BKP_ReadBackupRegister(BKP_DR1) != 0xA5A5)
        {
                //printf("\r\n\r\n RTC not yet configured....");

                /* RTC Configuration */
                RTC_Configuration();
               
                //printf("\r\n\r\n RTC configured....");

                /* ½«¼ÆêyÖμD′èëRTC¼ÆêyÆ÷ */
          RTC_SetCounter(0);        //éèÖÃRTC¼ÆêyÆ÷μÄÖμ
          RTC_WaitForLastTask();        //μè′y×î½üò»′ζÔRTC¼Ä′æÆ÷μÄD′2ù×÷íê3é         
               
               
                //éèÖÃÄÖÖóê±¼ä
                RTC_SET_ALARM(10);       
                BKP_WriteBackupRegister(BKP_DR1, 0xA5A5);
        }
        else
        {
          /*Æô¶ˉÎTDèéèÖÃDÂê±Öó*/
                /*¼ì2éêÇ·ñμôμçÖØÆô*/
//                if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
//                {
//                    printf("\r\n\r\n Power On Reset occurred....");
//                }
//                /*¼ì2éêÇ·ñReset¸′λ*/
//                else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
//                {
//                        printf("\r\n\r\n External Reset occurred....");
//                }
//       
//                printf("\r\n No need to configure RTC....");
               
                /*μè′y¼Ä′æÆ÷í¬2½*/
                RTC_WaitForSynchro();
               
                /*ÔêDíRTCÃëÖD¶Ï*/
                RTC_ITConfig(RTC_IT_SEC, ENABLE);
               
                /*μè′yéÏ′ÎRTC¼Ä′æÆ÷D′2ù×÷íê3é*/
                RTC_WaitForLastTask();
        }

          /* Clear reset flags */
          RCC_ClearFlag();

}
//éèÖÃÄÖÖó
void RTC_SET_ALARM(u32 sec)
{
          RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);        //ê1ÄüPWRoíBKPíaéèê±Öó   
          PWR_BackupAccessCmd(ENABLE);        //ê1Äüo󱸼Ä′æÆ÷·ÃÎê  
         // RTC_SetAlarm(10);
   //DEBUG_COM_STREAM("-??-",NULL);
    RTC_SetAlarm(RTC_GetCounter()+sec);
   //DEBUG_COM_STREAM("-??1-",NULL);
   RTC_WaitForLastTask();
   //DEBUG_COM_STREAM("-??2-",NULL);
   RTC_ITConfig(RTC_FLAG_ALR,ENABLE);
}

中断服务程序：

//RTCÃëÖD¶Ïoˉêy

void RTC_IRQHandler(void)
{
          if (RTC_GetITStatus(RTC_IT_SEC) != RESET)
          {
            /* Clear the RTC Second interrupt */
            RTC_ClearITPendingBit(RTC_IT_SEC);
            /* Wait until last write operation on RTC registers has finished */
            RTC_WaitForLastTask();
          }
}

//RTCÄÖÖóÖD¶Ïoˉêy
void RTCAlarm_IRQHandler(void)
{
         if(RTC_GetITStatus(RTC_IT_ALR)!= RESET)//ÄÖÖóÖD¶Ï
        {
                SYSCLKConfig_STOP();                //ÖØDÂÅäÖÃËøÏà»·ê±Öó
       
                //éèÖÃê±Öó
          RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, DISABLE);        //ê1ÄüPWRoíBKPíaéèê±Öó   
                RTC_SetCounter(0);        //ÖØDÂéèÖÃRTC¼ÆêyÆ÷μÄÖμ
          RTC_WaitForLastTask();        //μè′y×î½üò»′ζÔRTC¼Ä′æÆ÷μÄD′2ù×÷íê3é         
    RTC_SET_ALARM(10);        //éèÖÃÄÖÖóê±¼ä
                BKP_WriteBackupRegister(BKP_DR1, 0xA5A5);
                RTC_ClearITPendingBit(RTC_IT_ALR);                //ÇåÄÖÖóÖD¶Ï                 
          EXTI_ClearITPendingBit(EXTI_Line17);
                RTC_WaitForLastTask();
  }                                                                                                    

}

麦穗

欣欣向荣 发表于 2018-1-8 17:17
#include "bsp_exti.h"
#include "bsp_led.h"
#include "bsp_usart1.h"

你这个是F几的程序？我用f0调试，怎么第一次可以进入停止模式的低功耗，后面直接绕过去了，不睡眠，直接向下执行了