C语言驱动之配置RTC（基于S3C2440开发板）

这是rtc.c文件

#include <s3c2440.h>
#include <stdio.h>
#include "rtc.h"
#include "irq.h"
#include "lcd.h"
#include "led.h"
#include "bee.h"

void RTC_Init()
{
//RTC初始化
TDATE t={0,0,0,10,5,2018};

   GPBCON |= (0x1 << 10);//将所有的led1（GPB5）设置为输出模式
   GPBDAT |= (0x1 << 5);

   RTC_Set(&t);

}
//获取RTC时间
void RTC_Get(TDATE *t)
{
   RTCCON |= 1 << 0; //先打开RTC控制器使能,设置完时间后必须禁止RTC控制器使能

   t->tm_year = RTC_BCD2INT(BCDYEAR) + 2000;
   t->tm_mon = RTC_BCD2INT(BCDMON);
   t->tm_mday = RTC_BCD2INT(BCDDATE);
   t->tm_hour = RTC_BCD2INT(BCDHOUR);
   t->tm_min = RTC_BCD2INT(BCDMIN);
   t->tm_sec = RTC_BCD2INT(BCDSEC);
   t->tm_wday = RTC_BCD2INT(BCDDAY);

   RTCCON &= ~(1 << 0);
}
//设置RTC时间
void RTC_Set(const TDATE *t)
{
   RTCCON |= 1 << 0; //先打开RTC控制器使能,设置完时间后必须禁止RTC控制器使能

   BCDYEAR = RTC_INT2BCD(t->tm_year - 2000);
   BCDMON = RTC_INT2BCD(t->tm_mon);
   BCDDATE = RTC_INT2BCD(t->tm_mday);
   BCDHOUR = RTC_INT2BCD(t->tm_hour);
   BCDMIN = RTC_INT2BCD(t->tm_min);
   BCDSEC = RTC_INT2BCD(t->tm_sec);
   BCDDAY = RTC_INT2BCD(t->tm_wday);

RTCCON &= ~(1 << 0);
}

/********************************
*
* TICK中断初始化
*
*********************************/
void RTC_IRQ_TICK_Init(unsigned char tick)
{
   //中断安装函数
   irq_install(IRQ_TICK, RTC_timeDisplay);
   TICNT=tick | 0x80; //一般设置tick(127)周期1s ,开启Tick(第7位使能/禁止)
}

/********************************
*
* 显示实时时间
*
*********************************/
void RTC_timeDisplay()
{
   TDATE t;
   char ch[50];
   char ch1[50];

   RTC_Get(&t); //读取RT时间
   sprintf(ch,"%d-%02d-%02d", t.tm_year,t.tm_mon,t.tm_mday);
   sprintf(ch1,"%02d:%02d:%02d",t.tm_hour,t.tm_min,t.tm_sec);
lcd_print(295,5,ch, BLUE, WHITE);
   lcd_print(395,5,ch1, RED, WHITE);
}

//设置ALARM时间
void Alarm_Set(const TDATE *t)
{
RTCCON |= 1 << 0; //先打开RTC控制器使能,设置完时间后必须禁止RTC控制器使能

   ALMYEAR = RTC_INT2BCD(t->tm_year - 2000);
   ALMMON = RTC_INT2BCD(t->tm_mon);
   ALMDATE = RTC_INT2BCD(t->tm_mday);
   ALMHOUR = RTC_INT2BCD(t->tm_hour);
   ALMMIN = RTC_INT2BCD(t->tm_min);
   ALMSEC = RTC_INT2BCD(t->tm_sec);
   BCDDATE = RTC_INT2BCD(t->tm_wday);
   RTCALM = 0xFF;

RTCCON &= ~(1 << 0);
}
----------------------------------------------------------华丽的分割线------------------------------------------------------------------

这是rtc.h文件

#ifndef _RTC_H_
#define _RTC_H_

#include "type.h"

#define RTC_BCD2INT(X) (((((X)&0xF0)>>4)*10)+((X)&0xF))
#define RTC_INT2BCD(X) ((((X)/10)<<4)+((X)%10))

typedef struct
{
   u8 tm_sec;
   u8 tm_min;
   u8 tm_hour;
   u8 tm_mday;
   u8 tm_mon;
   u16 tm_year;
   u8 tm_wday;
}TDATE;

void RTC_Init(void);
void RTC_Set(const TDATE *t);
void RTC_Get(TDATE *t);
void RTC_IRQ_TICK_Init(unsigned char tick);
void RTC_timeDisplay(void);
void Alarm_Set(const TDATE *t);

#endif

C语言驱动之配置RTC（基于S3C2440开发板）

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