求数码电子钟程序详解阿

[gl23838]

#include "reg51.h"

unsigned char r=0x04; //0000 0100
sbit p3_4=P3^4;
unsigned char number[10]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
unsigned char value;
int count=5;
int sec=0,min=0,hour=0;
int array[6]={0,0,0,0,0,0};
sbit button1=P3^2;
sbit button2=P3^3;
int state=0;
int count1=0;
void dishiqi(void) interrupt 1
{
if(count==-1){
count=5;
r=0x04;
}

count1++;
P1=~r;
if(count1<=250){
if(state==1) P1=P1|0xC0; 1100 0000
else if(state==2) P1=P1|0x30; 0011 0000


else if(state==3) P1=P1|0x0C; 0000 1100


}
if(count1==500) count1=0;
if(count==3 || count==1)
value=number[array[count]]|0x80;
else value=number[array[count]];
P0=value;
r = r<<1;
count--;
TH0 = 0xF8;
TL0 = 0x30;
p3_4=~p3_4;


}

void jishu(void) interrupt 3
{
int a,b;
sec++;
if(sec==60) {
sec=0;
min++;
}
if(sec<=59){
a=sec/10;
b=sec%10;
array[5]=b;
array[4]=a;


}
if(min==60)
{
min=0;
hour++;
}
if(min<=59){
a=min/10;
b=min%10;
array[3]=b;
array[2]=a;


}


if(hour==24) hour=0;
a=hour/10;
b=hour%10;
array[1]=b;
array[0]=a;

}
void delay()
{
unsigned char i,j;
for(i=100;i>0;i--)
for(j=100;j>0;j--);
}

void presskey1(void) interrupt 0
{

// EX0=0;
delay();
if(button1==0)
{
while(button1==0);
state++;
if(state==4)state=0;
count1=0;
}


}
void presskey2(void) interrupt 2
{
delay();

if(button2==0)
{
int a,b;
while(button2==0);
if(state==1)
{
hour++;
if(hour==24) hour=0;
a=hour/10;
b=hour%10;
array[1]=b;
array[0]=a;

}
else if(state==2)
{
min++;
if(min==60)min=0;
else if(min<=59){
a=min/10;
b=min%10;
array[3]=b;
array[2]=a;
}

}
else if(state==3)
{
sec++;
if(sec==60) sec=0;
else if(sec<=59){
a=sec/10;
b=sec%10;
array[5]=b;
array[4]=a;

}
}
}
}
void main(void)
{


TMOD = 0x61;//T0做定时，T1做计数
TH0 = 0xF8; //定时2ms
TL0 = 0x30;
TH1=0x06;
TL1=0x06;
TR1=1;
TR0=1;
ET1=1;
ET0 = 1;
EX0 = 1;
EX1 = 1;
EA = 1;
IP=0x0A;

while (1);

}

[P__204]

#include<reg52.h>
#include<define.h>
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}

void didi()
{
beep=0;
delay(50);
beep=1;
delay(100);
beep=0;
delay(50);
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 init()
{
uchar num;
EA=1;
EX0=1;
IT0=1;

dula=0;
wela=0;
lcden=0;
// set_time();
set_alarm(14,13,10);
write_ds(0x0B,0x26);
read_ds(0x0c);
// fen=59;
// miao=53;
// shi=23;
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);
for(num=0;num<12;num++)
{
write_date(table1[num]);
delay(5);
}

}

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 keyscan()
{
rd=0;
if(flag1==1)
{
if(s2==0)
{
delay(5);
if(s2==0)
{
while(!s2);
flag1=0;
}

}
if(s3==0)
{
delay(5);
if(s3==0)
{
while(!s3);
flag1=0;
}

}
}

if(s1==0)
{
delay(5);
if(s1==0)
{ s1num++;
flag=1;
flag1=0;
while(!s1);
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);
flag=0;
write_ds(0,miao);
write_ds(2,fen);
write_ds(4,shi);
}


}
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+10);


}
if(s1num==2)
{
fen++;
if(fen==60)
fen=0;
write_sfm(7,fen);
write_com(0x80+0x40+7);
}
if(s1num==3)
{
shi++;
if(shi==24)
shi=0;
write_sfm(4,shi);
write_com(0x80+0x40+4);
}
}
}
if(s3==0)
{
delay(1);
if(s3==0)
{
while(!s3);
if(s1num==1)
{
/* if(miao==0)
{
miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+10);
}*/
miao--;
if(miao==-1)
miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+10);
}
if(s1num==2)
{
fen--;
if(fen==-1)
fen=59;
write_sfm(7,fen);
write_com(0x80+0x40+7);
}
if(s1num==3)
{
shi--;
if(shi==-1)
shi=23;
write_sfm(4,shi);
write_com(0x80+0x40+4);
}
}
}
}
}

void write_ds(uchar add,uchar date)
{
dscs=0;
dsas=1;
dsds=1;
dsrw=1;
P0=add;
dsas=0;
dsrw=0;
P0=date;
dsrw=1;
dsas=1;
dscs=1;
}

uchar read_ds(uchar add)
{
uchar ds_date;
dsas=1;
dsds=1;
dsrw=1;
dscs=0;
P0=add;
dsas=0;
dsds=0;
P0=0xff;
ds_date=P0;
dsds=1;
dsas=1;
dscs=1;
return ds_date;
}

void set_time()
{
write_ds(4,10);
write_ds(2,32);

}

void set_alarm(uchar ashi,uchar afen,uchar amiao)
{
write_ds(1,amiao);
write_ds(3,afen);
write_ds(5,ashi);
}
void main()
{
init();
while(1)
{
keyscan();
if(flag1==1)
didi();
if(flag==0)
{
miao=read_ds(0);
fen=read_ds(2);
shi=read_ds(4);
write_sfm(10,miao);
write_sfm(7,fen);
write_sfm(4,shi);
}
}
}

void exter() interrupt 0
{ uchar c;
flag1=1;
c=read_ds(0x0c);
}

你看看这个 郭天祥的例程