S3C2451中RTC实时时钟

#include "S3C2451_rtc.h"
#include "S3C2451_vector.h"


RTC_MemMapPtr const   RTC_BASE_Ptr = RTC_BASE_PTR;


Time_InitTypeDef rt_time;






void RTC_IRQ_Init( U8 cnt,FunctionalState NewState)
{
/// rTICNT = 0xff;


if(NewState != DISABLE)
{
RTC_BASE_Ptr->TICNT0 |= 0x80;
RTC_BASE_Ptr->TICNT0 &= ~0x7f;
if(cnt>127)
cnt = 127;
RTC_BASE_Ptr->TICNT0 |= cnt;
}else
{
RTC_BASE_Ptr->TICNT0 &= ~0x80;
}
}
void RTCTick_Interrupt_IRQInit( U32 addr)
{
pISR_TICK = addr;
}






void RTC_Time_Set( Time_InitTypeDef rtc_init_struct )
{
RTC_BASE_Ptr->RTCCON = 1 ;//RTC read and write enable


RTC_BASE_Ptr->BCDYEAR = rtc_init_struct.year;//Äê
RTC_BASE_Ptr->BCDMON  = rtc_init_struct.month ;//ÔÂ
RTC_BASE_Ptr->BCDDATE = rtc_init_struct.day ;//ÈÕ
RTC_BASE_Ptr->BCDDAY  = rtc_init_struct.week ;//ÐÇÆÚ
RTC_BASE_Ptr->BCDHOUR = rtc_init_struct.hour ;//Сʱ
RTC_BASE_Ptr->BCDMIN  = rtc_init_struct.minute ;//·Ö
RTC_BASE_Ptr->BCDSEC  = rtc_init_struct.second ;//Ãë


RTC_BASE_Ptr->RTCCON &= ~1 ;//RTC read and write disable
}




void RTC_Time_Get(Time_InitTypeDef *rtc_init_struct ) 
{
RTC_BASE_Ptr->RTCCON = 1 ;//RTC read and write enable


rtc_init_struct->year = 0x2000+RTC_BASE_Ptr->BCDYEAR  ;//Äê
rtc_init_struct->month = RTC_BASE_Ptr->BCDMON  ;//ÔÂ   12     0x12 
rtc_init_struct->day = RTC_BASE_Ptr->BCDDATE  ;//ÈÕ
rtc_init_struct->week = RTC_BASE_Ptr->BCDDAY  ;//ÐÇÆÚ
rtc_init_struct->hour = RTC_BASE_Ptr->BCDHOUR  ;//Сʱ
rtc_init_struct->minute = RTC_BASE_Ptr->BCDMIN  ;//·Ö
rtc_init_struct->second = RTC_BASE_Ptr->BCDSEC  ;//Ãë

RTC_BASE_Ptr->RTCCON &= ~1 ;//RTC read and write disable
}