#include "reg51.h"
sbit t_clk=P1^0;   /*實(shí)時(shí)時(shí)鐘時(shí)鐘線引腳 */
sbit t_io=P1^1;	   /*實(shí)時(shí)時(shí)鐘數(shù)據(jù)線引腳 */
sbit t_rst=P1^7;   /*實(shí)時(shí)時(shí)鐘復(fù)位線引腳 */
sbit BIT7=ACC^7;   /*位尋址寄存器定義 */
sbit BIT0=ACC^0;   /*位尋址寄存器定義 */
unsigned data second,mintue,hour,dat,month,week,year;
//unsigned char code str1[]="上"
//unsigned char inittime[7]={0x00,0x00,0x00,0x02,0x12,0x04,0x04};//秒　分鐘 小時(shí)　日　 月　 年　星期	 初始化后設(shè)置為：04年12月2日星期4 0點(diǎn)0分0秒
//unsigned char ctime[7]={0x00,0x00,0x00,0x02,0x12,0x04,0x04};//秒　分鐘 小時(shí)　日　 月　 年　星期	 初始化后設(shè)置為：04年12月2日星期4 0點(diǎn)0分0秒
//unsigned char timeee=20;
main()
{
    void wr_1302(unsigned char add,unsigned char ucda);
    unsigned char re_1302(unsigned char add);
    void set1302(unsigned char *pda);
    void get_1302(unsigned char curtime[]); 
   while(1)
    {
         Put12864Number(32,0,1,re_1302(0x8d)/10+0x32); //顯示年
         Put12864Number(33,0,1,re_1302(0x8d)%10+0x32);
	     Put12864Number(35,0,1,re_1302(0x89)/10+0x32); //顯示月
         Put12864Number(36,0,1,re_1302(0x89)%10+0x32);
         Put12864Number(38,0,1,re_1302(0x87)/10+0x32); //顯示日
         Put12864Number(39,0,1,re_1302(0x87)%10+0x32);
	     Put12864Number(41,0,1,re_1302(0x85)/10+0x32); //顯示小時(shí)
         Put12864Number(42,0,1,re_1302(0x85)%10+0x32);
	     Put12864Number(44,0,1,re_1302(0x83)/10+0x32); //顯示分
         Put12864Number(45,0,1,re_1302(0x83)%10+0x32);      
	     Put12864Number(47,0,1,re_1302(0x81)/10+0x32); //顯示秒
         Put12864Number(48,0,1,re_1302(0x81)%10+0x32);
	     Put12864Number(50,0,1,re_1302(0x8b)%10+0x32); //顯示星期
    }
}    

/************************DS1302讀寫程序************************/
void inputbyte(unsigned char ucda)	//八位數(shù)據(jù)寫入函數(shù)
{   
       unsigned char i;
       ACC=ucda;                    //將要寫入的數(shù)放入ACC
       t_rst=1;						//啟動(dòng)數(shù)據(jù)傳送
       for(i=8;i>0;i--)				//循環(huán)八次，寫入八位數(shù)據(jù)，從低位到高位
       { 
	      t_io=BIT0;				//將ACC^0的值賦給時(shí)鐘數(shù)據(jù)線
          t_clk=0;
          t_clk=1;					//在時(shí)鐘線的上升沿寫入一位數(shù)據(jù)
          ACC=ACC>>1;				//將高一位數(shù)據(jù)移至ACC^0
       }
}

unsigned char outputbyte(void)	//八位數(shù)據(jù)讀出函數(shù)
{
        unsigned char i;
        t_rst=1;				//啟動(dòng)數(shù)據(jù)傳送
        for(i=8;i>0;i--)		//讀出八位數(shù)據(jù)，從低位到高位
        {
		    ACC=ACC>>1;			//將前一下降沿讀出的數(shù)據(jù)右移一位，從而該次讀出的數(shù)放入ACC^7
            t_io=1;				//P1口輸入之前置1
            t_clk=1;
            t_clk=0;			//時(shí)鐘線下降沿讀出一位數(shù)據(jù)
            BIT7=t_io;
        }
        return(ACC);
}

void wr_1302(unsigned char add,unsigned char ucda)  //將指令或數(shù)據(jù)寫入對(duì)應(yīng)寄存器
{      
        t_rst=0;
        t_clk=0;
        t_rst=1;
        inputbyte(add);
        inputbyte(ucda);
        t_rst=0;
        t_io=1;
}

unsigned char re_1302(unsigned char add) //讀出對(duì)應(yīng)寄存器內(nèi)容
{
        unsigned char ucda,dat1,dat2;
        t_rst=0;
        t_clk=0;
        t_rst=1;
        inputbyte(add);
        ucda=outputbyte();
        t_rst=0;
        dat1=ucda;
        dat2=dat1/16;					//數(shù)據(jù)進(jìn)制轉(zhuǎn)換
        dat1=dat1%16;					//十六進(jìn)制轉(zhuǎn)十進(jìn)制
        dat1=dat1+dat2*10;
        return(dat1);
}

/*void set1302(unsigned char *pda)  //設(shè)置時(shí)間初值
{     
        unsigned char i;
        unsigned char add=0x80;
        wr_1302(0x8e,0x00);		 //將控制寄存器值設(shè)為零，最高位WP=0允許寫
        for(i=7;i>0;i--)		 //將七個(gè)時(shí)間初值寫入對(duì)應(yīng)寄存器
        {
		     wr_1302(add,*pda);	 //寫對(duì)應(yīng)時(shí)鐘寄存器的值
             pda++;
             add+=2;
        }
        wr_1302(0x8e,0x80);		 //寫保護(hù)，防止干擾影響時(shí)間值
}

void get_1302(unsigned char curtime[])	//讀取當(dāng)前時(shí)間值
{
        unsigned char i,j;
        unsigned char add=0x81;
        bdata unsigned char sec;
        for(i=0;i<7;i++)
           {
		       curtime[i]=re_1302(add);	//讀對(duì)應(yīng)時(shí)鐘寄存器的值
               sec=curtime[i];
               j=sec>>4;				//將BCD碼轉(zhuǎn)化為對(duì)應(yīng)十進(jìn)制數(shù)
               j*=10;
               sec=sec&0x0f;
               sec+=j;
               curtime[i]=sec;
               add+=2;
           }
}*/

/*void Init1302(void)
{
        wr_1302(0x8e,0x00);  //禁止寫保護(hù)
        wr_1302(0x90,0xa5);
        wr_1302(0x80,0x00);  //秒初始化
        wr_1302(0x82,0x40);  //分鐘初始化
        wr_1302(0x84,0x08);  //時(shí)初始化
        wr_1302(0x86,0x09);  //日初始化
        wr_1302(0x88,0x03);  //月初始化
        wr_1302(0x8a,0x01);  //星期初始化
        wr_1302(0x8c,0x09);  //年初始化 
        wr_1302(0x8e,0x80);  //允許寫保護(hù)
}*/