stm32f103用RTC闹钟唤醒停止模式

ok407371195 · 发表于 2016-11-8 12:25:36

#include "RTC.h"
void RTC_Configuration(void)

{

/*EnablePWRandBKPclocks*/

RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR|RCC_APB1Periph_BKP,ENABLE);

/*AllowaccesstoBKPDomain*/

PWR_BackupAccessCmd(ENABLE);

/*ResetBackupDomain*/
BKP_DeInit();

/*EnableLSE*/

RCC_LSICmd(ENABLE);

/*WaittillLSEisready*/

while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY)==RESET)

{}

/*SelectLSEasRTCClockSource*/

RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);

/*EnableRTCClock*/

RCC_RTCCLKCmd(ENABLE);

/*WaitforRTCregisterssynchronization*/

RTC_WaitForSynchro();

/*WaituntillastwriteoperationonRTCregistershasfinished*/

RTC_WaitForLastTask();

/*SetRTCprescaler:setRTCperiodto1sec*/

RTC_SetPrescaler(40000);
RTC_WaitForLastTask();

/*EnabletheRTCALARM*/

RTC_ITConfig(RTC_IT_ALR,ENABLE);

/*WaituntillastwriteoperationonRTCregistershasfinished*/

RTC_WaitForLastTask();
}
void RTC_Initializes(uint32_t wake_up)
{
  if( wake_up <5    ) wake_up = 5;       //5s
  if( wake_up > 24*3600  ) wake_up = 24*3600; //24h

  RTC_Configuration();
  RTC_SetCounter(0);
  RTC_WaitForLastTask();
  RTC_SetAlarm(wake_up);//唤醒时间
  RTC_WaitForLastTask();
  RTC_NVIC_Config();
  RTC_Alarm_EXIT();
}
void RTC_NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

NVIC_InitStructure.NVIC_IRQChannel = RTCAlarm_IRQn;  //闹钟中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //比RTC全局中断的优先级高
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void RTC_Alarm_EXIT(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_ClearITPendingBit(EXTI_Line17);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Line = EXTI_Line17;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
void
App_cpu_sleep(uint32_t wake_up)
{
RTC_Initializes(wake_up);

Befor_goto_Standby();
  //PWR_EnterSTANDBYMode();
PWR_EnterSTOPMode(PWR_Regulator_LowPower,PWR_STOPEntry_WFE);//STOP模式
}
void Befor_goto_Standby(void)
{
   uint32_t pin = 1;

   GPIO_InitTypeDef GPIO_InitStructure;
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
   GPIO_Init(GPIOA, &GPIO_InitStructure);
   GPIO_Init(GPIOC, &GPIO_InitStructure);

   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
   GPIO_Init(GPIOB, &GPIO_InitStructure);

   GPIO_ResetBits(GPIOB,GPIO_Pin_7);

   pin=  GPIO_ReadOutputDataBit(GPIOB,GPIO_Pin_7);

}
这是我写的代码，为什么停止时候电流能达到7mA呢