rtc.c

S3c2410下ADC[LTC1867]的驱动程序,在LCD上可以直接显示读取的AD数据

#include "2410lib.h"
#include "2410addr.h"
#include "def.h"

U8 year,month,date,weekday,hour,min,sec,RTC_pulse,cov_data;
int enable_beep = 1;

void __irq IsrAlarm(void);
void __irq Tick_Isr(void);

//设置RTC ALARM 时间
void setRTCalm(U8 almyear,U8 almmon,U8 almdate, U8 almhour,U8 almmin,U8 almsec)//年、月、日、时、分、秒
  {   
       rRTCCON=0x01;
	
	rALMYEAR = almyear;
	rALMMON  = almmon;
	rALMDATE = almdate;
	rALMHOUR = almhour;
	rALMMIN  = almmin;
	rALMSEC  = almsec;
	
	rRTCCON = 0;	//disable RTC write
  }
U8 int_bcd(U8 int_data)	 
 {
   U8 dh,dl;
   dh=int_data/10;
   dl=int_data%10;
   cov_data=(dh<<4)+dl;
   return(cov_data);
 }
void setRTCtime(U8 wRTCyear,U8 wRTCmon,U8 wRTCdate,U8 wRTCday,U8 wRTChour,U8 wRTCmin,U8 wRTCsec)//年、月、日、星期、时、分、秒
   {
        DisableIrq(BIT_TICK);
        rRTCCON=0x01;   //enable RTC write

        rBCDYEAR =int_bcd(wRTCyear);
        rBCDMON =int_bcd(wRTCmon);
        rBCDDATE= int_bcd(wRTCdate);       
        rBCDDAY  = wRTCday;
        rBCDHOUR =int_bcd(wRTChour);
        rBCDMIN = int_bcd(wRTCmin);
        rBCDSEC =int_bcd(wRTCsec);
                      
        rRTCCON = 0x00;	//disable RTC write
        EnableIrq(BIT_TICK);
}
//open rtc
void OpenRtc(void)
{
    pISR_TICK=(unsigned)Tick_Isr;
    rTICNT=0xFF;//Tick time interrupt enable;Tick time count value=127
    EnableIrq(BIT_TICK);//open RTC TICK INTERRUPT
}

//close  rtc
void CloseRtc(void)
{
    rTICNT &= ~(1<<7);
    DisableIrq(BIT_TICK);

}
//open rtc alarm
void OpenAlarm()
{
	pISR_RTC = (unsigned)IsrAlarm;
	ClearPending(BIT_RTC);	
	rRTCALM = (0x7f);	//enable alarm
	EnableIrq(BIT_RTC);	
		
}

//close  rtc alarm
void CloseAlarm(void)
{
	rRTCALM = 0;			//disable alarm
	DisableIrq(BIT_RTC);
}

// get rtc
void Get_Rtc(void)
{
       uchar t1,t2,t3;
       
        rRTCCON = 0x01;	//RTC读写使能，选择BCD时钟、计数器，无复位，1/32768

	    if (rBCDYEAR == 0x99)    
	    year = 0x1999;
	    else    
	    year = 0x2000 + rBCDYEAR;
	    month=rBCDMON;
	    date=rBCDDATE&0x3f;
	    weekday=rBCDDAY+1;
	    hour=rBCDHOUR;
	    min=rBCDMIN;
	    sec=rBCDSEC;  //8-16 25-32 41-48 57-64
	    
	    sec=(((sec&0xf0)>>4)*10)+(sec&0x0f);	 
	    min=(((min&0xf0)>>4)*10)+(min&0x0f);
	    hour=(((hour&0xf0)>>4)*10)+(hour&0x0f);
	    date=(((date&0xf0)>>4)*10)+(date&0x0f);
	    month=(((month&0xf0)>>4)*10)+(month&0x0f);
	    year=(((year&0xf0)>>4)*10)+(year&0x0f);
   
        rRTCCON = 0x0;    //RTC读写禁止，选择BCD时钟、计数器，无复位，1/32768
}

void __irq IsrAlarm(void)
 {
    ClearPending(BIT_RTC);
    Uart_Printf("s3c244A RTCALM  oucer \n");
    Buzzer_PWM_Run();
 }


void __irq Tick_Isr(void)
  {
	Get_Rtc();
	ClearPending(BIT_TICK);
	RTC_pulse=1;	
  }