rtc.c

led,key,i2c,uart,adc,rtc,wdt测SHI 文件代码

#include "..\inc\44b.h"
#include "..\inc\44blib.h"
#include "..\inc\rtc.h"

void __irq Rtc_Tick(void);
char *date[8] = {"","SUN","MON","TUE","WED","THU","FRI","SAT"};
volatile unsigned int sec_tick;


void Display_Rtc(void)
{
    int year;
    int month,day,weekday,hour,min,sec;
	rRTCCON = 0x01;	// R/W enable, 1/32768, Normal(merge), No reset
	if(rBCDYEAR == 0x99) 
	    year = 0x1999;
	else 
	    year = 0x2000 + rBCDYEAR;
	    month=rBCDMON;
	    day=rBCDDAY;
	    weekday=rBCDDATE;
	    hour=rBCDHOUR;
	    min=rBCDMIN;
	    sec=rBCDSEC;	 
    Uart_Printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b%4x,%2x,%2x,%s,%2x:%2x:%2x\n",year,month,day,date[weekday],hour,min,sec);
    rRTCCON = 0x0;    // R/W disable(for power consumption), 1/32768, Normal(merge), No reset
}


volatile int isRtcInt;
void Rtc_Init(void)
{
    rRTCCON = 0x01;	// R/W enable, 1/32768, Normal(merge), No reset

    rBCDYEAR = TESTYEAR;
    rBCDMON  = TESTMONTH;
    rBCDDAY  = TESTDAY;	// SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
    rBCDDATE = TESTDATE;
    rBCDHOUR = TESTHOUR;
    rBCDMIN  = TESTMIN;
    rBCDSEC  = TESTSEC;
}

void __irq Rtc_Int(void)
{
    rI_ISPC=BIT_RTC;   
    //rI_ISPC; //is needed only when cache=on & wrbuf=on & BSFRD=0
    Uart_Printf("\nRTC Alarm Interrupt O.K.\n");
    isRtcInt=1;  
}


int Test_Rtc_Alarm(void)  
{
	int temp;
	temp=rINTMSK;
    Uart_Printf("\n[RTC Alarm Test for S3C44B0X]\n");

    Rtc_Init();

//    rRTCCON = 0x01; // R/W enable, 1/32768, Normal(merge), No reset

    rALMYEAR=TESTYEAR2 ;
    rALMMON =TESTMONTH2;
    rALMDAY =TESTDAY2  ;
    rALMHOUR=TESTHOUR2 ;
    rALMMIN =TESTMIN2  ;
    rALMSEC =TESTSEC2+9; 

    isRtcInt=0;
    pISR_RTC=(unsigned int)Rtc_Int;
    rRTCALM=0x7f;
    rRTCCON=0x0;
    rINTMSK=~(BIT_GLOBAL|BIT_RTC);

    while(isRtcInt==0);
    
    rINTMSK=BIT_GLOBAL;
    rRTCCON = 0x0;    // R/W disable(for power consumption), 1/32768, Normal(merge), No reset
    rINTMSK=temp;
    return 1;
}




char sec1s=0;
void Test_Rtc_Tick(void)
{
	int temp;
	temp=rINTMSK;
    Uart_Printf("\n[RTC Tick interrupt test for S3C44B0X]\n");
     
    pISR_TICK=(unsigned)Rtc_Tick;


    sec_tick=1;
    rINTMSK=~(BIT_GLOBAL|BIT_TICK); 
    rRTCCON=0x0;		//R/W disable(for power consumption), 1/32768, Normal(merge), No reset
    rTICINT = 127+(1<<7);	//START

	Uart_Printf("\nTyping 's' to exit!!!\n                                            ");	
    while (1)
    { 
    	if (sec1s==1)
    	{
    		Display_Rtc();
	    	sec1s=0;
    	
    	}
    	if (Uart_GetKey()=='s') break;
    }
    rINTMSK |= (BIT_GLOBAL | BIT_TICK);

    rRTCCON=0x0;	//END
    rINTMSK=temp;
}


void __irq Rtc_Tick(void)
{
    rI_ISPC=BIT_TICK;
    sec1s=1;   
//    Uart_Printf("\b\b\b\b\b\b\b%03d sec",sec_tick++);
}