#include<reg52.h>
sbit T_CLK = P2^7;                 //實時時鐘時鐘線引腳 
sbit T_IO = P1^4;                   //實時時鐘數據線引腳 
sbit T_RST = P1^5;                  //實時時鐘復位線引腳 

//往DS1302寫入1Byte數據，輸入: ucDa 寫入的數據

void main()
{
unsigned char ucDa,cAddr,ucAddr,ACC0,ACC1;




unsigned char i;
ACC = ucDa;
for(i=8; i>0; i--)
{
T_IO = ACC0;                  
T_CLK = 1;
T_CLK = 0;
ACC = ACC >> 1; 
} 

//從DS1302讀取1Byte數據，返回值: ACC


for(i=8; i>0; i--)
{
ACC = ACC >>1;                      
ACC1 = T_IO;
T_CLK = 1;
T_CLK = 0;
} 


//往DS1302寫入數據


T_RST = 0;
T_CLK = 0;
T_RST = 1;
//v_RTInputByte(ucAddr);                    //地址，命令 
//v_RTInputByte(ucDa);                      //寫1Byte數據
T_CLK = 1;
T_RST =0;


//讀取DS1302某地址的數據


T_RST = 0;
T_CLK = 0;
T_RST = 1;
//v_RTInputByte(ucAddr);                    //地址，命令 
//ucDa = uc_RTOutputByte();                 //讀1Byte數據 
T_CLK = 1;
T_RST =0;

}