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 <STC15F2K60S2.H>
#include <intrins.h>
#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 <stc15f2k60s2.h>
#include "ds1302.h"
#include <intrins.h>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

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