#include "RTC.h"
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void RTC_SET_ALARM(u32 sec)
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{
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//DEBUG_COM_STREAM("-??-",NULL);
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RTC_SetAlarm(RTC_GetCounter()+sec);
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//DEBUG_COM_STREAM("-??1-",NULL);
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RTC_WaitForLastTask();
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//DEBUG_COM_STREAM("-??2-",NULL);
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RTC_ITConfig(RTC_FLAG_ALR,ENABLE);
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}
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void RTC_Configuration(uint16_t interval)
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{
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EXTI_InitTypeDef EXTI_InitStructure;
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/* Enable PWR and BKP clocks */
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
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/* Allow access to BKP Domain */
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PWR_BackupAccessCmd(ENABLE);
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/* Reset Backup Domain */
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//BKP_DeInit();
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RCC_LSICmd(ENABLE);
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/* Enable LSE */
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//RCC_LSEConfig(RCC_LSE_ON);
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/* Wait till LSE is ready */
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while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET){}
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/* Select LSE as RTC Clock Source */
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RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
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/* Enable RTC Clock */
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RCC_RTCCLKCmd(ENABLE);
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/* Wait for RTC registers synchronization */
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RTC_WaitForSynchro();
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/* Wait until last write operation on RTC registers has finished */
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RTC_WaitForLastTask();
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/* Enable the RTC Second */
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//RTC_ITConfig(RTC_IT_SEC, ENABLE);
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/* Wait until last write operation on RTC registers has finished */
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RTC_WaitForLastTask();
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RTC_ITConfig(RTC_IT_ALR,ENABLE); //?? RTC ???
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RTC_WaitForLastTask();
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/* Set RTC prescaler: set RTC period to 1sec */
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RTC_SetPrescaler(interval); /* RTC period = RTCCLK/RTC_PR = (32.768 KHz)/(32767+1) */
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/* Wait until last write operation on RTC registers has finished */
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RTC_WaitForLastTask();
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RTC_SET_ALARM(1);
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//RTCÍⲿÖжÏʹÄÜ
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EXTI_InitStructure.EXTI_Line = EXTI_Line17;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
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EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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EXTI_Init(&EXTI_InitStructure);
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}
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