暂时只做了参数定义、提交至分支br1

周巍

2024-04-11 91ef77c00ed797b1048c5187f416e351e646a009

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#include "wkup.h"
#include "delay.h"
//////////////////////////////////////////////////////////////////////////////////     
//±¾³ÌÐòÖ»¹©Ñ§Ï°Ê¹Óã¬Î´¾­×÷ÕßÐí¿É£¬²»µÃÓÃÓÚÆäËüÈκÎÓÃ;
//ALIENTEKÕ½½¢STM32¿ª·¢°å
//´ý»ú»½ÐÑ ´úÂë       
//ÕýµãÔ­×Ó@ALIENTEK
//¼¼ÊõÂÛ̳:www.openedv.com
//ÐÞ¸ÄÈÕÆÚ:2012/9/7
//°æ±¾£ºV1.0
//°æȨËùÓУ¬µÁ°æ±Ø¾¿¡£
//Copyright(C) ¹ãÖÝÊÐÐÇÒíµç×ӿƼ¼ÓÐÏÞ¹«Ë¾ 2009-2019
//All rights reserved                                      
//////////////////////////////////////////////////////////////////////////////////
     
void Sys_Standby(void)
{  
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);    //ʹÄÜPWRÍâÉèʱÖÓ
    PWR_WakeUpPinCmd(ENABLE);  //ʹÄÜ»½ÐѹܽŹ¦ÄÜ
    PWR_EnterSTANDBYMode();      //½øÈë´ýÃü£¨STANDBY£©Ä£Ê½          
}
//ϵͳ½øÈë´ý»úģʽ
void Sys_Enter_Standby(void)
{             
    RCC_APB2PeriphResetCmd(0X01FC,DISABLE);    //¸´Î»ËùÓÐIO¿Ú
    Sys_Standby();
}
// //¼ì²âWKUP½ÅµÄÐźÅ
// //·µ»ØÖµ1:PA0Ϊ¸ßµçƽ
// //      0:PA0ΪµÍµçƽ
u8 Check_WKUP(void) 
{
 
    if(WKUP_KD == 0)
    {
   delay_ms(250);
        if(WKUP_KD == 0)
        {
     return 0;
    }
  }
    
    if(WKUP_KD == 1)
    {
   delay_ms(250);
        if(WKUP_KD == 1)
        {
     return 1;
    }
  }
}
 
//ÖжÏ,¼ì²âµ½PA0½ÅµÄÒ»¸öÉÏÉýÑØ.      
//ÖжÏÏß0ÏßÉϵÄÖжϼì²â
 
 
void EXTI0_IRQHandler(void)
{                                                          
    EXTI_ClearITPendingBit(EXTI_Line0); // Çå³ýLINE10ÉϵÄÖжϱê־λ          
    if(Check_WKUP())//¹Ø»ú?
    {          
        Sys_Enter_Standby();  
    }
} 
//PA0 WKUP»½Ðѳõʼ»¯
void WKUP_Init(void)
{    
    GPIO_InitTypeDef  GPIO_InitStructure;            
    NVIC_InitTypeDef NVIC_InitStructure;
    EXTI_InitTypeDef EXTI_InitStructure;
 
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE);//ʹÄÜGPIOAºÍ¸´Óù¦ÄÜʱÖÓ
 
    GPIO_InitStructure.GPIO_Pin =GPIO_Pin_0;     //PA.0
    GPIO_InitStructure.GPIO_Mode =GPIO_Mode_IPD;//ÉÏÀ­ÊäÈë
    GPIO_Init(GPIOA, &GPIO_InitStructure);    //³õʼ»¯IO
    //ʹÓÃÍⲿÖжϷ½Ê½
    GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0);    //ÖжÏÏß0Á¬½ÓGPIOA.0
 
    EXTI_InitStructure.EXTI_Line = EXTI_Line0;    //ÉèÖð´¼üËùÓеÄÍⲿÏß·
    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;            //ÉèÍâÍⲿÖжÏģʽ:EXTIÏß·ΪÖжÏÇëÇó
    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;  //ÉÏÉýÑØ´¥·¢
       EXTI_InitStructure.EXTI_LineCmd = ENABLE;
    EXTI_Init(&EXTI_InitStructure);    // ³õʼ»¯ÍⲿÖжÏ
 
    NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; //ʹÄÜ°´¼üËùÔÚµÄÍⲿÖжÏͨµÀ
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; //ÏÈÕ¼ÓÅÏȼ¶2¼¶
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //´ÓÓÅÏȼ¶2¼¶
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //ʹÄÜÍⲿÖжÏͨµÀ
    NVIC_Init(&NVIC_InitStructure); //¸ù¾ÝNVIC_InitStructÖÐÖ¸¶¨µÄ²ÎÊý³õʼ»¯ÍâÉèNVIC¼Ä´æÆ÷
 
    if(Check_WKUP()==0) Sys_Standby();    //²»ÊÇ¿ª»ú,½øÈë´ý»úģʽ  
}
///////////////////////////////////////////
//RTC¶¨Ê±»½ÐÑ
 void EXTI_Configuration(void)
{
    EXTI_InitTypeDef EXTI_InitStructure;
    
    /* Configure EXTI Line17(RTC Alarm) to generate an interrupt on rising edge */
    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);
   
}
 
void RTCAlarm_IRQHandler(void)
{                                                          
    EXTI->PR=1<<17;  //Çå³ýLINE17ÉϵÄÖжϱê־λ    
   SystemInit();    
} 
 
void RTC_Configuration(void)
{
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
    PWR_BackupAccessCmd(ENABLE);
  if(PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
  {
    PWR_ClearFlag(PWR_FLAG_SB);
    RTC_WaitForSynchro();
  }
  else
  {
    BKP_DeInit();
    RCC_LSEConfig(RCC_LSE_ON);
//    RCC_LSICmd(ENABLE);
    while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
    {
    }
    /* Ñ¡Ôñ LSE Îª RTC Ê±ÖÓÔ´ */
    RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
 
 //   RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
    RCC_RTCCLKCmd(ENABLE);
    RTC_WaitForSynchro();
//    RTC_SetPrescaler(39999); 
    RTC_SetPrescaler(32767);  
 
    RTC_WaitForLastTask();
  }
  RTC_ITConfig(RTC_IT_ALR, ENABLE);
  RTC_WaitForLastTask();
    RTC_SetAlarm(RTC_GetCounter()+ 5);
    RTC_WaitForLastTask();
}
 
// void NVIC_Configuration(void)
// {
//   NVIC_InitTypeDef NVIC_InitStructure;
//   NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
 
//   NVIC_InitStructure.NVIC_IRQChannel = RTCAlarm_IRQn;
//   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
//   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
//   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
//   NVIC_Init(&NVIC_InitStructure);
 
// }