#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit rs=P3^5;
sbit en=P3^4;
sbit s1=P3^0;
sbit s2=P3^1;
sbit s3=P3^3;
sbit s4=P3^6;
sbit s5=P1^7;
sbit rd=P3^7;
sbit s6=P3^2;
sbit led=P2^7;
sbit beep=P1^5;
uchar count, count1,s1num,s4num,s6num;
char shi,fen,miao,pshi,mm;
uchar code table[]=" 00:00:00 ";
uchar code table1[]=" 23:59:57 ";
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void zhuanhuan()
{
if(shi==0)
pshi=12;
if(shi<=12&&shi>=1)
pshi=shi;
if(shi>12)
pshi=shi-12;
}
void write_com(uchar com)
{
rs=0;
en=0;
P0=com;
delay(5);
en=1;
delay(5);
en=0;
}
void write_data(uchar date)
{
rs=1;
en=0;
P0=date;
delay(5);
en=1;
delay(5);
en=0;
}
void _shi()
{
if(shi>=12)
{
write_com(0x80+0x40+0);
write_data('P');
write_data('M');
}
else
{
write_com(0x80+0x40+0);
write_data('A');
write_data('M');
}
}
void init()
{
uchar num;
en=0;
shi=23;
fen=59;
miao=57;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
for(num=0;num<12;num++)
{
write_data(table[num]);
delay(1);
}
write_com(0x80+0x40);
for(num=0;num<12;num++)
{
write_data(table1[num]);
delay(1);
}
TMOD=0x11;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TH1=(65536-10000)/256;
TL1=(65536-10000)%256;
EA=1;
ET0=1;
TR0=1;
ET1=1;
TR1=0;
}
void write_sfm(uchar add,uchar date)
{
uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+0x40+add);
write_data(0x30+shi);
write_data(0x30+ge);
}
void write_jishi(uchar add,uchar date)
{
uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+add);
write_data(0x30+shi);
write_data(0x30+ge);
}
void keyscan()
{
rd=0;
if(s1==0)
{
delay(1);
if(s1==0)
{
s1num++;
while(!s1);
if(s1num==1)
{
write_com(0x80+0x40+11);
TR0=0;
write_com(0x0f);
}
if(s1num==2)
{
write_com(0x80+0x40+8);
}
if(s1num==3)
{
write_com(0x80+0x40+5);
}
if(s1num==4)
{
s1num=0;
write_com(0x0c);
TR0=1;
}
}
}
if(s1num!=0)
{
if(s2==0)
{
delay(1);
if(s2==0)
{
while(!s2);
if(s1num==1)
{
miao++;
if(miao==60)
miao=0;
write_sfm(10,miao);
write_com(0x80+0x40+11);
}
if(s1num==2)
{
fen++;
if(fen==60)
fen=0;
write_sfm(7,fen);
write_com(0x80+0x40+8);
}
if(s1num==3)
{
shi++;
if(shi==24)
shi=0;
if(s4num==0)
{
write_sfm(4,shi);
write_com(0x80+0x40+5);
}
if(s4num==1)
{
zhuanhuan();
_shi();
write_sfm(4,pshi);
write_com(0x80+0x40+5);
}
}
}
}
}
if(s3==0)
{
delay(1);
if(s3==0)
{
while(!s3);
if(s1num==1)
{
miao--;
if(miao==-1)
miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+11);
}
if(s1num==2)
{
fen--;
if(fen==-1)
fen=59;
write_sfm(7,fen);
write_com(0x80+0x40+8);
}
if(s1num==3)
{
shi--;
if(shi==-1)
shi=23;
if(s4num==0)
{
write_sfm(4,shi);
write_com(0x80+0x40+5);
}
if(s4num==1)
{
zhuanhuan();
_shi();
write_sfm(4,pshi);
write_com(0x80+0x40+5);
}
}
}
}
if(s1num==0)
{
if(s4==0)
delay(1);
if(s4==0)
{
s4num++;
while(!s4);
if(s4num==1)
{
zhuanhuan();
_shi();
write_sfm(4,pshi);
}
if(s4num==2)
{
s4num=0;
write_com(0x80+0x40+0);
write_data(' ');
write_sfm(4,shi);
}
}
}
}
void main()
{
init();
//it0_init();
while(1)
{
keyscan();
if(s6==0)
{
delay(1);
if(s6==0)
{
s6num++;
while(!s5);
if(s6num==1)
{
TR1=1;
mm++;
if(mm==100)
{
mm=0;
miao++;
if(miao==60)
{
miao=0;
fen++;
if(fen==60)
{
TR1=0;
}
write_jishi(4,fen);
write_com(0x80+5);
}
write_jishi(7,miao);
write_com(0x80+8);
}
write_jishi(10,mm);
write_com(0x80+11);
}
if(s6num==2)
{
delay(5);
TR1=0;
}
if(s6num==3)
{
s6num=0;
init();
}
}
}
if(s5==0)
{
led=0;
delay(3000);
}
else
led=1;
if(fen==0&&miao==0)
{
beep=0;
delay(100);
}
else
beep=1;
}
}
void timer0() interrupt 1//¶¨Ê±Æ÷
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
if(count==20)
{
count=0;
miao++;
if(miao==60)
{
miao=0;
fen++;
if(fen==60)
{
fen=0;
shi++;
if(shi==24)
{
shi=0;
}
write_sfm(4,shi);
}
write_sfm(7,fen);
}
write_sfm(10,miao);
}
}
void timer1() interrupt 3//¶¨Ê±º¯Êý
{
TH1=(65536-10000)/256;
TL1=(65536-10000)%256;
count1++;
if(count1!=0)
{
mm++;
if(mm==100)
{
mm=0;
miao++;
if(miao==60)
{
miao=0;
fen++;
if(fen==60)
{
TR1=0;
}
write_jishi(4,fen);
}
write_jishi(7,miao);
}
write_jishi(10,mm);
}
}
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