T640_DTU/USER/RTC.c

/********************************************************************************
 * File Name:			RTC.c
 * Function Describe:  实时时间  万年历   软模拟
 * Explain:  
 * Writer:			ShiLiangWen
 * Date:				2019-2-17
 *******************************************************************************/
 #include "includes.h" 

 SUT_RTC sutRTC={2000,1,1,0,0,0};
 
 /*
 判断当月有多少天
 输入：year 如：2019   month 从1开始
 */
 int MonthDays(int year, int month)//判断当月共有多少天
{
	int month_days;
	if(year<2000)year+=2000;
    if (month == 2)
    {
        if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))
        {
            month_days = 29;
        }
        else
        {
            month_days = 28;
        }
    }
    else if (month == 4 || month == 6 || month == 9 || month == 11)
    {
        month_days = 30;
    }
    else
    {
        month_days = 31;
    }
		return month_days;
}

/*
 RTC 增加1秒
*/
 void RTCIncSecond(void)
 {
	 tsk_lock();
	 if(++sutRTC.Seconds>59){
		 sutRTC.Seconds=0; 
		 if(++sutRTC.Minute>59){
			 sutRTC.Minute=0;
			 if(++sutRTC.Hours>23){
				 sutRTC.Hours=0;
				 if(++sutRTC.Days>MonthDays(sutRTC.Years,sutRTC.Months)){
					 sutRTC.Days=1;
					 if(++sutRTC.Months>12){
						 sutRTC.Months=1;
						 sutRTC.Years++;
					 }
				 }
			 }
		 }
	 }
	 tsk_unlock();
 }
 
 void RTC_Process(void)
 {
	 unsigned char BCD[6];
		static unsigned long lastTick=100;
		unsigned long curTick;
		curTick=os_time_get();
		if(curTick>lastTick){
			lastTick=curTick+100;
			RTCIncSecond();
			//printf("%d-%d-%d %d:%d:%d\r\n",sutRTC.Years,sutRTC.Months,sutRTC.Days,sutRTC.Hours,sutRTC.Minute,sutRTC.Seconds);
			//RTC_Get(BCD);
			//TraceData(BCD,6);
		}
 }
 /*
 
 */
 void RTC_Set(unsigned char *BCD)
 {
	 tsk_lock();
	 sutRTC.Years=(int)(BCD[0]>>4)*10;
	 sutRTC.Years+=(int)BCD[0]&0xF;
	 sutRTC.Years+=2000;
	 sutRTC.Months=(int)(BCD[1]>>4)*10;
	 sutRTC.Months+=(int)BCD[1]&0xF;
	 sutRTC.Days=(int)(BCD[2]>>4)*10;
	 sutRTC.Days+=(int)BCD[2]&0xF;
	 sutRTC.Hours=(int)(BCD[3]>>4)*10;
	 sutRTC.Hours+=(int)BCD[3]&0xF;
	 sutRTC.Minute=(int)(BCD[4]>>4)*10;
	 sutRTC.Minute+=(int)BCD[4]&0xF;
	 sutRTC.Seconds=(int)(BCD[5]>>4)*10;
	 sutRTC.Seconds+=(int)BCD[5]&0xF;
	 tsk_unlock();
 }
 
 void RTC_Get(unsigned char *BCD)
 {
	 tsk_lock();
	 int y=sutRTC.Years-2000;
	 BCD[0]=((y/10)<<4)| (y%10);
	 BCD[1]=((sutRTC.Months/10)<<4)|(sutRTC.Months%10);
	 BCD[2]=((sutRTC.Days/10)<<4)|(sutRTC.Days%10);
	 BCD[3]=((sutRTC.Hours/10)<<4)|(sutRTC.Hours%10);
	 BCD[4]=((sutRTC.Minute/10)<<4)|(sutRTC.Minute%10);
	 BCD[5]=((sutRTC.Seconds/10)<<4)|(sutRTC.Seconds%10);
	 tsk_unlock();
 }
 //判断RTC时间是否有效 
 int RTC_Effective(void)
 {
	 if(sutRTC.Years>2001)return 1;
	 else return 0;
 }