#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
#include "24c02.h"
sbit dula=P2^6;
sbit wela=P2^7;
sbit rs=P3^5;
sbit lcden=P3^4;
sbit s1=P3^0;
sbit s2=P3^1;
sbit s3=P3^2;
sbit rd=P3^7;
sbit beep=P2^3;
uchar count,s1num;
char miao,shi,fen;
uchar code table[]=" 2018-5-20 MON";
void delay(uint z)
{
uint x,y;
for(x==z;x>0;x--)
for(y=110;y>0;y--);
}
void di()
{
beep=0;
delay(100);
beep=1;
}
void write_com(uchar com)
{
rs=0;
lcden=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_date(uchar date)
{
rs=1;
lcden=0;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_sfm(uchar add,uchar date)
{
uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+0x40+add);
write_date(0x30+shi);
write_date(0x30+ge);
}
void init()
{
uchar num;
rd=0;
dula=0;
wela=0;
lcden=0;
fen=0;
miao=0;
shi=0;
count=0;
s1num=0;
init_24c02();
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<15;num++)
{
write_date(table[num]);
delay(5);
}
write_com(0x80+0x40+6);
write_date(':');
delay(5);
write_com(0x80+0x40+9);
write_date(':');
delay(5);
miao=read_add(1);
fen=read_add(2);
shi=read_add(3);
write_sfm(10,miao);
write_sfm(7,fen);
write_sfm(4,shi);
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)/256;
EA=1;
ET0=1;
TR0=1;
}
void keyscan()
{
if(s1==0)
{
delay(5);
if(s1==0)
{ s1num++;
while(!s1);
di();
if(s1num==1)
{
TR0=0;
write_com(0x80+0x40+10);
write_com(0x0f);
}
if(s1num==2)
{
write_com(0x80+0x40+7);
}
if(s1num==3)
{
write_com(0x80+0x40+4);
}
if(s1num==4)
{
s1num=0;
write_com(0x0c);
TR0=1;
}
}
}
if(s1num!=0)
{
if(s2==0)
{
delay(5);
if(s2==0)
{
while(!s2);
di();
if(s1num==1)
{
miao++;
if(miao==60)
miao==0;
write_sfm(10,miao);
write_com(0x80+0x40+10);
write_add(1,miao);
}
if(s1num==2)
{
fen++;
if(fen==60)
fen==0;
write_sfm(7,fen);
write_com(0x80+0x40+7);
write_add(2,fen);
}
if(s1num==3)
{ shi++;
if(shi==24)
shi==0;
write_sfm(4,shi);
write_com(0x80+0x40+4);
write_add(3,shi);
}
}
}
if(s3==0)
{
delay(5);
if(s3==0)
{
while(!s3);
di();
if(s1num==1)
{
miao--;
if(miao--);
miao==59;
write_sfm(10,miao);
write_com(0x80+0x40+10);
write_add(1,miao);
}
if(s1num==2)
{
fen--;
if(fen--);
fen==59;
write_sfm(7,miao);
write_com(0x80+0x40+7);
write_add(2,fen);
}
if(s1num==3)
{
shi--;
if(shi--);
shi==23;
write_sfm(4,shi);
write_com(0x80+0x40+4);
write_add(3,shi);
}
}
}
}
}
void mian()
{ init();
while(1)
{
keyscan();
}
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
if(count==20)
{
count=0;
miao++;
if(fen==60)
{
fen++;
if(fen==60)
{
fen=0;
shi++;
if(shi==24)
{
shi=0;
}
write_sfm(4,shi);
write_add(3,shi);
}
write_sfm(7,fen);
write_add(2,fen);
}
write_sfm(10,miao);
write_add(1,miao);
}
}
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