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今天写了一个很蛋疼的程序，就是用数码管显示一个电子时钟，本来模块也挺简单的，就是数码管和独立键盘的用用，但是郁闷的是当按到键盘时整个程序就貌似进入死循环，有些定义的东西是多余的，求高手指点。。。程序如下：
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit wela=P2^7;
sbit dula=P2^6;
sbit key1=P2^0;
sbit key2=P2^1;
sbit key3=P2^2;
//sbit key4=P2^3;
uchar code tabledu[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71,0x40};
uchar code tablewe[]={
0xfe,0xfd,0xfb,0xf7,
0xef,0xdf,0xbf,0x7f};
uint i,k,a,b,c;
uchar z1,z2,z3,z4,z5,z6;
void delay(uint z)
{
uint x,y;
for(x=0;x<z;x++)
for(y=0;y<110;y++);
}
void init()
{
a=0;
b=0;
c=0;
k=0;
i=0;
dula=1;
P0=tablewe[0];
dula=0;
wela=1;
P1=0x24;
wela=0;
delay(5);
dula=1;
P0=tablewe[16];
dula=0;
wela=1;
P1=0xdb;
wela=0;
TMOD=1;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;
}
/*void control()
{
uchar flag1,flag2,flag3;
if(key1==0||key2==0||key3==0)
{
if(key1==0)
{
delay(10);
if(key1==0)
{
flag1=1;
a=60;
}
}
while(!key1); //抬手检测
delay(5);
while(!key1);
if(key2==0)
{
flag2=1;
if(key2==0)
{
delay(10);
b++;
}
}
while(!key2); //抬手检测
delay(5);
while(!key2);
if(key3==0)
{
flag3=1;
if(key3==0)
{
delay(10);
c++;
}
}
while(!key3); //抬手检测
delay(5);
while(!key3);
}
}*/
void display()
{
z1=a%10;
z2=a/10;
z3=b%10;
z4=b/10;
z5=c%10;
z6=c/10;
dula=1;
P0=tabledu[z1];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[7];
wela=0;
delay(5);
dula=1;
P0=tabledu[z2];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[6];
wela=0;
delay(5);
dula=1;
P0=tabledu[16];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[5];
wela=0;
delay(5);
dula=1;
P0=tabledu[z3];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[4];
wela=0;
delay(5);
dula=1;
P0=tabledu[z4];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[3];
wela=0;
delay(5);
dula=1;
P0=tabledu[16];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[2];
wela=0;
delay(5);
dula=1;
P0=tabledu[z5];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[1];
wela=0;
delay(5);
dula=1;
P0=tabledu[z6];
dula=0;
//P0=0xff;
wela=1;
P1=tablewe[0];
wela=0;
delay(5);
}
void main()
{
init();
while(1)
{
//control();
//if(!key1==0||!key2==0||!key3==0)
//break;
uchar flag1,flag2,flag3;
//if(key1==0||key2==0||key3==0)
if(key1==0)
{
delay(10);
if(key1==0)
{
flag1=1;
a=60;
}
}
while(!key1); //抬手检测
delay(5);
while(!key1);
if(key2==0)
{
flag2=1;
if(key2==0)
{
delay(10);
b++;
}
}
while(!key2); //抬手检测
delay(5);
while(!key2);
if(key3==0)
{
flag3=1;
if(key3==0)
{
delay(10);
c++;
}
}
while(!key3); //抬手检测
delay(5);
while(!key3);
display();
//delay(5);
//display();
if(k==5)
{
k=0;
a++;
}
if(a==60)
{
a=0;
b++;
}
if(b==60)
{
c++;
b=0;
}
if(c==24)
{
init();
}
}
}
void timer0()interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
k++;
} |
阿莫论坛20周年了！感谢大家的支持与爱护！！
知道什么是神吗？其实神本来也是人，只不过神做了人做不到的事情 所以才成了神。 （头文字D, 杜汶泽）
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发表于 2011-9-28 00:09:36
楼主
