#include<reg52.h>
#include"24c02.h"
#define uchar unsigned char
#define uint unsigned int
sbit lcdrs=P3^5;
sbit lcden=P3^4;
sbit s1=P3^4;
sbit s2=P3^5;
sbit s3=P3^6;
sbit rd=P3^7;
sbit beep=P2^7;
uchar count,s1num;
uchar miao,shi,fen;
uchar code table[]=" 2018-6-14 MON";
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void fmq()
{
beep=0;
delay(500);
beep=1;
}
void write_com(uchar com)
{
lcdrs=0;
lcden=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_date(uchar date)
{
lcdrs=1;
lcden=0;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_sfm(uchar add,uchar date) //ʱ·ÖÃë
{
uchar shi,ge;
shi=date/10; //·Ö½âʮλ¸öλ
ge=date%10;
write_com(0x80+0x40+add); //ÏÔʾλÖÃ
write_date(0x30+shi);
write_date(0x30+ge);
}
void init() //³õʼ»¯º¯Êý
{
uchar num;
rd=0;
lcden=0;
fen=0;
miao=0;
shi=0;
count=0;
s1num=0;
init_24c02();
write_com(0x38); //³õʼ»¯Òº¾§
write_com(0x0c);
write_com(0x06);
write_com(0x80);
for(num=0;num<15;num++) //ÄêÔÂÈÕÐÇÆÚ
{
write_date(table[num]);
delay(5);
}
write_com(0x80+0x40+6); //ðºÅ
write_date(':');
delay(5);
miao=read_add(1); //Ê×´ÎÉϵç´Ó24c02¶ÁÈ¡Êý¾Ý
fen=read_add(2);
shi=read_add(3);
write_sfm(10,miao); //ËÍÒº¾§ÏÔʾ
write_sfm(7,fen);
write_sfm(4,shi);
TMOD=0x01; //¶¨Ê±Æ÷0¹¤×÷ģʽ1
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;
}
void keyscan() //°´¼üɨÃè
{
if(s1==0)
{
delay(5);
if(s1==0) //°´ÏÂ
{
s1num++; //¼Ç¼´ÎÊý
while(!s1); //ÊÍ·Å
fmq();
if(s1num==1) //µÚÒ»´Î±»°´ÏÂ
{
TR0=0; //¹Ø±Õ¶¨Ê±Æ÷
write_com(0x80+0x40+10); //¹â±êÔÚÃë
write_com(0x0f); //¹â±êÉÁ˸
}
if(s1num==2) //µÚ¶þ´Î°´ÏÂ
{
write_com(0x80+0x40+7);
}
if(s1num==3) //µÚÈý´Î°´ÏÂ
{
write_com(0x80+0x40+4);
}
if(s1num==4)
{
s1num=0;
write_com(0x0c);
TR0=1;
}
}
}
if(s1num!=0) //¹¦Äܼü°´Ï£¬Ôö¼õÓÐЧ
{
if(s2==0)
{
delay(5);
if(s2==0)
{
while(!s2);
fmq();
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);
fmq();
if(s1num==1)
{
miao--;
if(miao==-1) miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+10);
write_add(1,miao);
}
if(s1num==2)
{
fen--;
if(fen==-1) fen=59;
write_sfm(7,fen);
write_com(0x80+0x40+7);
write_add(2,fen);
}
if(s1num==3)
{
shi--;
if(shi==-1) shi=23;
write_sfm(4,shi);
write_com(0x80+0x40+4);
write_add(3,shi);
}
}
}
}
}
void main()
{
init();
while(1)
{
keyscan();
}
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++; //ÀÛ¼Ó
if(count==20) //20´Îºó1Ãë
{
count=0; //Çå0
miao++;
if(miao==60)
{
miao=0;
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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