/* 本程序所使用CPU為51單片機(jī)，時(shí)鐘為24MHZ，程序主體網(wǎng)上所得，稍加修，念在下初學(xué)，還請(qǐng)?jiān)髡咭?jiàn)諒。特此聲明*/
  #include <reg51.h>
  #include <intrins.h>  
  #include "LCM1602.h"
  #include "DS1302.h" 
 struct TimerStruct          //定義時(shí)鐘的數(shù)據(jù)結(jié)構(gòu)
{
  unsigned char Year;
  unsigned char Month;
  unsigned char Day;
  unsigned char Week;
  unsigned char Hour;
  unsigned char Minute;
  unsigned char Second;
};
  unsigned char  DateBuffer[] ={"2000/12/20"};	  // 隨便設(shè)置，不表示顯示的初始值，只為方便子程序調(diào)用													 
  unsigned char  TimeBuffer[] = {"21:49:00"};	  //初始值在主程序中設(shè)置  
  unsigned int SecondCounter;//秒計(jì)數(shù)器(無(wú)符號(hào)整型)
void timer0(void) interrupt 1 //定時(shí)T0溢出中斷,每25mS產(chǎn)生一次中斷   方式1    9E58
{    unsigned char Temp; 
     struct TimerStruct RealClock;
     TH0=0x9e;//(65536-46080)/256;         //重新裝入定時(shí)25mS的初值到TH0,TL0
     TL0=0x58;//(65536-46080)%256;														    
     SecondCounter++;               //秒計(jì)數(shù)器加1
     if(SecondCounter==40)          //到40,表示1S時(shí)間到
    {
     SecondCounter=0;
 /****--以下是讀取DS1302的時(shí)鐘信息,并將結(jié)果存儲(chǔ)到顯示緩沖區(qū)中****/
      Temp=Read_DS1302_RTC(0x81);   //讀秒信息
      RealClock.Second=Temp;
      TimeBuffer[7]=(Temp%16)|0x30;
      TimeBuffer[6]=(Temp>>4)|0x30;
      Temp=Read_DS1302_RTC(0x83);   //讀分信息
      RealClock.Minute=Temp;
      TimeBuffer[4]=(Temp%16)|0x30;
      TimeBuffer[3]=(Temp>>4)|0x30;
      Temp=Read_DS1302_RTC(0x85);  //讀時(shí)信息
      RealClock.Hour=Temp;
      TimeBuffer[1]=(Temp%16)|0x30;
      TimeBuffer[0]=(Temp>>4)|0x30;    
      Temp=Read_DS1302_RTC(0x87);  //讀日信息
      RealClock.Day=Temp;
      DateBuffer[9]=(Temp%16)|0x30;
      DateBuffer[8]=(Temp>>4)|0x30;
      Temp=Read_DS1302_RTC(0x89);   //讀月信息
      RealClock.Month=Temp;
      DateBuffer[6]=(Temp%16)|0x30;
      DateBuffer[5]=(Temp>>4)|0x30;
      Temp=Read_DS1302_RTC(0x8d);   //讀年信息
      RealClock.Year=Temp;
      DateBuffer[3]=(Temp%16)|0x30;
      DateBuffer[2]=(Temp>>4)|0x30;
/*****************---送到LCD上顯示出來(lái)***********************/
      DisplayListChar(0,0,DateBuffer);//刷新LCD上的日期信息
      DisplayListChar(0,1,TimeBuffer);//刷新LCD上的時(shí)間顯示信息
    }
}
void main(void){
  TMOD=0x01;                     //T0工作于16位定時(shí)功能
  TH0=(65536-46080)/256;          //T0定時(shí)25mS的初值裝入TH0,TL0
  TL0=(65536-46080)%256;
  EA=1;                           //CPU開(kāi)中斷
  ET0=1;                         //允許T0溢出中斷
  Delay400Ms();
  LCMInit();                      //初始化LCD
/************ Init_DS1302_RTC();//初始化DS1302*************/
  Write_DS1302_RTC(0x8e,0x00); //Open Write Protect bit
  Write_DS1302_RTC(0x80,0x00);//Write Second   0
  Write_DS1302_RTC(0x82,0x52);//Write Minute   52
  Write_DS1302_RTC(0x84,0x21);//Write Hour	   21
  Write_DS1302_RTC(0x86,0x14);//Write Day	   14
  Write_DS1302_RTC(0x88,0x10);//Write Month	   10
  Write_DS1302_RTC(0x8a,0x05);//Write Week	   Friday
  Write_DS1302_RTC(0x8c,0x06);//Write Year	   06		 
  Write_DS1302_RTC(0x8e,0x80);//Close Write Protect bit  
  TR0=1;                         //啟動(dòng)T0開(kāi)始工作
  while(1){ ; } 
}