#include<reg52.h>
#include<Ds1302.h>
sbit lcden=P2^5;//1602液晶使能
sbit lcdrs=P1^0;//1602液晶数据/命令选择
sbit lcdrw=P1^1;//读/写选择
sbit dula=P2^6;
sbit wela=P2^7;//把段和位的573锁存器关闭
sbit s1=P3^4;
sbit s2=P3^5;
sbit s3=P3^6;//三个更改时间的按键
sbit ja=P3^0;
#define uchar unsigned char
#define uint unsigned int
uchar code table[]="2013-03-03 week0";
uchar code table1[]=" 00:00:00";
char miao=0,fen=0,shi=0,day=0,month=0,year=0,week=0;
uchar num1=0;
void delay(uint z)//延时函数
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void keyscan();
void write_com(uchar com)//1602液晶写命令函数
{
lcdrs=0;
lcden=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_date(uchar date)//1602液晶写数据函数
{
lcdrs=1;
lcden=0;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init_1602()//初始化1602液晶
{
uchar num;
dula=0;
wela=0;
lcden=0;
lcdrw=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<16;num++)
{