CN300/STU/src_middlewares/stm32fxx_STUclock.c

#include "stm32f1xx_hal.h"
#include "rtc.h"
#include "stm32fxx_STUclock.h"

uint16_t clockTest_sysClockCount=0;



/*配置RTC时钟源为LSI(40KHZ),分频后，计时基准频率1Khz，计时周期1ms*/
void STU_ClockTestInit(void)
{
  RTC_AlarmTypeDef salarmstructure;

	/*配置闹钟前，清零计数寄存器*/
	RTC_WriteTimeCounter(&hrtc,0);

  /*配置RTC 闹钟中断为100ms(1分40秒为100个计数，这里周期为1ms)*/
  salarmstructure.Alarm = RTC_ALARM_A;
  salarmstructure.AlarmTime.Hours = 0x00;
  salarmstructure.AlarmTime.Minutes = 1;
  salarmstructure.AlarmTime.Seconds = 40;
  
  if(HAL_RTC_SetAlarm_IT(&hrtc,&salarmstructure,RTC_FORMAT_BIN) != HAL_OK)
  {
    /* Initialization Error */
    Error_Handler(); 
  }
	
	/*清零计数寄存器，和计数*/
	RTC_WriteTimeCounter(&hrtc,0);
	clockTest_sysClockCount = 0;
}


void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
	static uint16_t sysClockCount_tmp=0;
	//HAL_Delay (1);
	
	sysClockCount_tmp = clockTest_sysClockCount;
	
	if(sysClockCount_tmp < 75)
	{
		while(1);
	}
	if(sysClockCount_tmp > 125)
	{
		while(1);
	}
		
	RTC_WriteTimeCounter(hrtc,0);
	clockTest_sysClockCount = 0;
}