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333.c
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333.c
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#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit ln=P2^1;
sbit ls=P2^0;
sbit k1=P1^0;
sbit k2=P1^1;
sbit k3=P1^2;
sbit k4=P1^3;
uchar code table[]="0123456789";
uchar code table1[]=":.";
uchar code table2[]="Number";
uchar m=0,t=0,i,aa=0,max,min1,min0,sec1,sec0,one,num0,num1,num=0,min[34]=0;
int add,sec[34]=0;
int s=0;
void delay(int z)
{
int i,j;
for(i=z;i>0;i--)
for(j=110;j>0;j--);
}
void write_com(uchar com)
{
ls=0;
P0=com;
delay(5);
ln=1;
delay(5);
ln=0;
}
void write_data(uchar date)
{
ls=1;
P0=date;
delay(5);
ln=1;
delay(5);
ln=0;
}
void init()
{
TMOD=0x01;
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
EA=1; //开总中断
ET0=1; //计时器0开启
TR0=0; //计时器先关闭
ln=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
}
void convert0(uchar temp)
{
min1=temp/10;
min0=temp%10;
}
void convert1(int temp)
{
sec1=temp/100;
sec0=temp%100/10;
one=temp%10;
}
void convert2(uchar temp)
{
num1=(temp+0)/10;
num0=(temp+0)%10;
}
void displayinit()
{
write_com(0x80+0x40+0x03);
for(i=0;i<6;i++)
write_data(table2[i]);
}
void displaytime()
{
write_com(0x80+0x04);
write_data(table[min1]);
write_data(table[min0]);
write_data(table1[0]);
write_data(table[sec1]);
write_data(table[sec0]);
write_data(table1[1]);
write_data(table[one]);
}
displaynum()
{
write_com(0x80+0x47+0x03);
write_data(table[num1]);
write_data(table[num0]);
}
void keyscan()
{
if(k1==0&&ET0==1)
{
delay(5);
if(k1==0&&ET0==1)
{
if(TR0==1)
{
num++;
min[num]=m;
sec[num]=s;
}
if(TR0==0)
{TR0=1;}
}
while(k1==0)
{
convert0(m);
convert1(s);
convert2(num);
displaytime();
displaynum();
}
}
if(k2==0&&TR0==1)
{
delay(5);
if(k2==0&&TR0==1)
{
num++;
min[num]=m;
sec[num]=s;
TR0=0;
ET0=0;
max=num;
}
while(k2==0)
{
convert0(m);
convert1(s);
convert2(num);
displaytime();
displaynum();
}
}
if(k2==0&&TR0==0)
{
delay(5);
if(k2==0&&TR0==0)
{
m=0;s=0;num=0;
for(i=0;i<max;i++)
{
min[i]=0;sec[i]=0;
}
max=0;ET0=1;
}
while(k2==0);
}
if(k3==0&&ET0==0)
{
delay(5);
if(k3==0&&ET0==0)
{
if(ET0==0)
if(num>1)
num--;
m=min[num];
s=sec[num];
}
while(k3==0)
{
convert0(m);
convert1(s);
convert2(num);
displaytime();
displaynum();
}
}
if(k4==0&&ET0==0)
{
delay(5);
if(k4==0)
{
if(ET0==0)
if(num<max)
num++;
m=min[num];
s=sec[num];
}
while(k4==0)
{
convert0(m);
convert1(s);
convert2(num);
displaytime();
displaynum();
}
}
}
void main()
{
init();
displayinit();
while(1)
{
convert0(m);
convert1(s);
convert2(num);
displaytime();
displaynum();
keyscan();
}
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
aa++;
if(aa==2)
{
aa=0;
s++;
if(s==600)
{
m++;
s=0;
}
}
}