基于stc15f2k60s2芯片单片机编程（时钟DS1302）

                    **stc15f2k60s2芯片编程（时钟DS1302）**

main.c函数

#include 
#include 
#define uchar unsigned char 
#define uint unsigned int
void shumaguan();
uchar code abile[]={0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90,0XBF,0XFF};

unsigned char saomiao[]={0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF};
uchar yi,er,san,si,wu ,liu,qi,ba;
extern uchar shijian[7];
void Delay100us();
 void readtime();
void dsinit();
void main()
{
	P2=0XC0;P0=0X01;P2=0XFF;P0=0XFF;
  
	P2=P2&0X1F|0XA0;
	P0=0X00;
	P2&=0X1F;
		dsinit();
	while(1)
	{
	
	readtime();
	
		yi=shijian[2]/16;er=shijian[2]%16;san=10;
		si=shijian[1]/16;wu=shijian[1]%16;liu=10;
		qi=shijian[0]/16;ba=shijian[0]%16;
	  shumaguan();
	  Delay100us();
	}
}

void shumaguan()
{
	unsigned char i;
	P2=P2&0x1f|0xe0;
	P0=0xff;
	P2=0x1f;
  P2=P2&0x1f|0xc0;
	P0=1<<i;
	P2=0x1f;
  P2=P2&0x1f|0xe0;
	P0=saomiao[i];
	P2=0x1f;
	i++;
	if(i==8) i=0;
  
	saomiao[0]=abile[yi];
    saomiao[1]=abile[er];
	saomiao[2]=abile[san];
	saomiao[3]=abile[si];
	saomiao[4]=abile[wu];
	saomiao[5]=abile[liu];
	saomiao[6]=abile[qi];
	saomiao[7]=abile[ba];
}



void Delay100us()		//@11.0592MHz
{
	unsigned char i, j;

	_nop_();
	_nop_();
	i = 2;
	j = 15;
	do
	{
		while (--j);
	} while (--i);
}

ds1302.c函数

#include 
#include "ds1302.h"
#include 


sbit SCK=P1^7;		
sbit SDA=P2^3;		
sbit RST = P1^3;   // DS1302¸´Î»												

void Write_Ds1302_Byte(unsigned  char temp) 
{
	unsigned char i;
	for (i=0;i<8;i++)     	
	{ 
		SCK=0;
		SDA=temp&0x01;
		temp>>=1; 
		SCK=1;
	}
}   

void Write_Ds1302( unsigned char address,unsigned char dat )     
{
 	RST=0;
	_nop_();
 	SCK=0;
	_nop_();
 	RST=1;	
   	_nop_();  
 	Write_Ds1302_Byte(address);	
 	Write_Ds1302_Byte(dat);		
 	RST=0; 
}

unsigned char Read_Ds1302 ( unsigned char address )
{
 	unsigned char i,temp=0x00;
 	RST=0;
	_nop_();
 	SCK=0;
	_nop_();
 	RST=1;
	_nop_();
 	Write_Ds1302_Byte(address);
 	for (i=0;i<8;i++) 	
 	{		
		SCK=0;
		temp>>=1;	
 		if(SDA)
 		temp|=0x80;	
 		SCK=1;
	} 
 	RST=0;
	_nop_();
 	RST=0;
	SCK=0;
	_nop_();
	SCK=1;
	_nop_();
	SDA=0;
	_nop_();
	SDA=1;
	_nop_();
	return (temp);			
}


void readtime()

{
	unsigned char i;
	unsigned char address=0x81;
	Write_Ds1302(0x8e,0x00);
	for(i=0;i<7;i++)
	{
		shijian[i]=Read_Ds1302(address);
		address=address+2;
	}
	Write_Ds1302(0x8e,0x80);	
}
void dsinit()
{
	uchar i;
	uchar address=0x80;
	Write_Ds1302(0x8e,0x00);	
															
	for(i=0;i<7;i++)
	{
		Write_Ds1302(address,ds[i]);
		address=address+2;
	}
	Write_Ds1302(0x8e,0x80);
	
}

ds1302.h函数

#ifndef __DS1302_H
#define __DS1302_H


#define uchar unsigned char 
#define uint unsigned int	

void Write_Ds1302_Byte(unsigned  char temp);
void Write_Ds1302( unsigned char address,unsigned char dat );
unsigned char Read_Ds1302 ( unsigned char address );
uchar shijian[7];
uchar code ds[]={0x50,0x59,0x23,0x10,0x10,0x01,0x16};




#endif