ARM44B0实验六:RTC测试实验

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RTC实验步骤:

一、实时始终初始化

define TESTYEAR (0x99)
#define TESTMONTH (0x12)
#define TESTDAY  (0x31)
#define TESTDATE    (0x06) // SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define TESTHOUR (0x23)
#define TESTMIN  (0x59)
#define TESTSEC  (0x30)

#define TESTYEAR2 (0x00)
#define TESTMONTH2 (0x01)
#define TESTDAY2 (0x01)
#define TESTDATE2 (0x07) // SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define TESTHOUR2 (0x00)
#define TESTMIN2 (0x00)
#define TESTSEC2 (0x00)

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;

rRTCCON = 0x00;//读写禁止
}

二、显示当前时间

void Display_Rtc(void)
{
int year;
int month,day,weekday,hour,min,sec;

    rRTCCON = 0x01;    // R/W enable, 1/32768, Normal(merge), No reset
//    Uart_Printf("This test should be excuted once RTC test(Alarm) for RTC initialization/n");
    while(1)    //避免读入期间时间跳变引起时间错误
    {
if(rBCDYEAR == 0x99)
     year = 0x1999;
else
     year = 0x2000 + rBCDYEAR;
     month=rBCDMON;
     day=rBCDDAY;
     weekday=rBCDDATE;
     hour=rBCDHOUR;
     min=rBCDMIN;
     sec=rBCDSEC;
if(sec!=0)
     break;
    }
    Uart_Printf("%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
}

运行结果如下：

*************************************************************************
*                          立泰电子工作室                                *
*                     -S3C44B0X功能部件:RTC测试-                         *
*                          Version 1.11                                 *
*                     Email:rao_dali@263.net                            *
*             UART Config--COM:115.2kbps,8Bit,NP,UART0                  *
*------------------Begin to Start RTC test,OK? (Y/N)--------------------*
1:RTC(display)     2:RTC(Alarm)       3:RTC Tick

Select the function to test?1

1999,12,31,FRI,23:59:37