?? rtcalarm.c
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#include "2410lib.h"
#include "2410addr.h"
#include "timer.h"
char *date[8] = { "","SUN","MON", "TUES", "WED", "THURS","FRI", "SAT" } ;
void __irq IsrAlarm(void);
//設置RTC ALARM 時間
void setRTCalm(U8 almyear,U8 almmon,U8 almday,
U8 almdate,U8 almmin,U8 almsec)
{ rRTCCON=0x0001;
rALMYEAR = almyear;
rALMMON = almmon;
rALMDATE = almdate;
rALMMIN = almmin;
rALMSEC = almsec;
rRTCCON = 0; //disable RTC write
}
//置時鐘定時時間
void setRTCtime(U8 wRTCyear,U8 wRTCmon,U8 wRTCday,
U8 wRTCdate,U8 wRTCmin,U8 wRTCsec)
{
rRTCCON=0x01;
rBCDYEAR = wRTCyear;
rBCDMON = wRTCmon;
rBCDDAY = wRTCday;
rBCDDATE = wRTCdate;
rBCDMIN = wRTCmon;
rBCDSEC = wRTCsec;
rRTCCON = 0x00; //disable RTC write
}
//open rtc alarm
void OpenAlarm()
{
rRTCALM = (0x7f); //enable alarm
pISR_RTC = (unsigned)IsrAlarm;
ClearPending(BIT_RTC);
EnableIrq(BIT_RTC);
}
//close rtc alarm
void CloseAlarm(void)
{
rRTCALM = 0; //disable alarm
DisableIrq(BIT_RTC);
}
// display rtc
void Display_Rtc(void)
{
int year;
int month,day,weekday,hour,min,sec;
rRTCCON = 0x01; //RTC讀寫使能,選擇BCD時鐘、計數器,無復位,1/32768
while(1)
{
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("RTC TIME : %4x/%02x/%02x %s - %02x:%02x:%02x\n",year,month,day,date[weekday],hour,min,sec);
rRTCCON = 0x0; //RTC讀寫禁止,選擇BCD時鐘、計數器,無復位,1/32768
}
/****************************************************/
void Main(void)
{
SetClockDivider(1, 1);
SetSysFclk(DFT_FCLK_VAL);
Port_Init();
Uart_Select(0);
Uart_Init(0, UART_BAUD);
setRTCtime(06,04,15,2,30,29);
setRTCalm(06,04,15,2,32,29);
OpenAlarm();
Uart_Printf("s3c2410x RTC Test\n");
while(1)
{
Display_Rtc();
Delay(100);
}
}
void __irq IsrAlarm(void)
{
//when GPB0=0,beep enable
rGPBCON=(rGPBCON|0x03)&0xFFFFFFFD;//GPB0設置為output
rGPBUP|=0x01; //disable GPF pull up
rGPBDAT=(rGPBDAT&0xFFFFFFFE)|0x01;
ClearPending(BIT_ALLMSK);
Delay(10000);
//GPB0=1,beep disable
rGPBCON=(rGPBCON|0x03)&0xFFFFFFFD;//GPB0設置為output
rGPBUP|=0x01; //disable GPF pull up
rGPBDAT=(rGPBDAT&0xFFFFFFFE)|0x00;
CloseAlarm();
}
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