1602数字时钟

# include < reg52.h >

# include < 24C02.h>

# define uint unsigned int

# define uchar unsigned char

sbit rs = P3^5;  //定义lcd1602的rs端

sbit lcden = P3^4;//定义lcd1602的lcden端口

sbit s1 = P3^0;//定义功能键s1

sbit s2 = P3^1;//定义功能键s2

sbit s3 = P3^2;//定义功能键s3

sbit beep = P2^3;//定义蜂鸣器

uchar count, s1num;

char miao,fen,shi;

uchar code table[] = "Designer:X_ZL ";//定义初始上电时液晶默认显示状态

void delay_ms( xms )   //定义延时函数

{

uint i,j;

for( i = xms ; i > 0 ; i --)

for( j = 110 ; j > 0 ; j --);

}

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