rtc.c

s3c44b0的RTC测试源码

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

void __irq Rtc_display(void);
void __irq Rtc_Int(void);
void __irq Rtc_Tick(void);

char *date[8] = {"","SUN","MON","TUE","WED","THU","FRI","SAT"};
volatile unsigned int sec_tick;
int year,month,day,weekday,hour,min,sec;

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 Display_Rtc(void)
{
      
    Uart_Printf("This test should be excuted once RTC test for RTC initialization\n");
    Rtc_Init(); 
    pISR_TICK=(unsigned)Rtc_display;

    rRTCCON = 0x01;    // R/W enable, 1/32768, Normal(merge), No reset
    sec_tick=1;
    
    rINTMSK=~(BIT_GLOBAL|BIT_TICK); 
    
    rTICINT = 127+(1<<7);	//START
    Uart_Getch();
    rINTMSK |= (BIT_GLOBAL | BIT_TICK);
    rRTCCON=0x0;	//END
}

void __irq Rtc_display(void)
{
    rI_ISPC=BIT_TICK;   
    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%4x,%2x,%2x,%s,%2x:%2x:%2x",year,month,day,date[weekday],hour,min,sec);
}

volatile int isRtcInt;
int Test_Rtc_Alarm(void)  
{
    Uart_Printf("RTC Alarm Test for S3C44B0X\n");
    Rtc_Init();
    rRTCCON = 0x01; // R/W enable, 1/32768, Normal(merge), No reset

    rALMYEAR=rBCDYEAR ;
    rALMMON =rBCDMON  ;
    rALMDAY =rBCDDAY  ;
    rALMHOUR=rBCDHOUR ;
    rALMMIN =rBCDMIN  ;
    if(rBCDSEC<0X30)
     rALMSEC =0x30;
    else
     rALMSEC =0x59;

    isRtcInt=0;
    pISR_RTC=(unsigned int)Rtc_Int;
    rRTCALM=0x7f;
    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
    return 1;
}

void __irq Rtc_Int(void)
{
    rI_ISPC=BIT_RTC;   
    Uart_Printf("RTC Alarm Interrupt O.K.\n");
    isRtcInt=1;  
}

void Test_Rtc_Tick(void)
{
    Uart_Printf("RTC Tick Interrupt 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_Getch();
    rINTMSK |= (BIT_GLOBAL | BIT_TICK);
    rRTCCON=0x0;	//END
}


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