51單片機多功能LED點陣顯示數字時鐘

這段程序是在PRTUES上完全好使

妳可以根據 程序自己在PROTUES上畫圖

#include<reg51.h>

#define uint unsigned int

char code tab[]=;

char code table[]=;

sbit duan=P2^5;

sbit wei=P2^6;

sbit button1=P1^0;

sbit button2=P1^1;

sbit button3=P1^2;

sbit button4=P1^3;

sbit button5=P1^4;

sbit button6=P1^5;

sbit button7=P1^6;

sbit button8=P1^7;

void delay(uint z);

void start();

void display();

static char a,b,c,d,k,e,f,g,h;

static char num1,num2,num3,num4;

void main()

{ start();

while(1)

if(button2==0)

if(button3==0)

if(button4==0)

{ delay(10);

if(button4==0)

}}

while(button4==0)

}

if(button5==0)

{ delay(10);

if(button5==0)

}

while(button5==0)

}

if(button6==0)

{ delay(10);

if(button6==0)

}

while(button6==0)

}

if(button7==0)

{delay(10);

if(button7==0)

{num3--;

if(num3<0)

}

while(button7==0)

}

if(button8==0)

{delay(10);

if(button8==0)

while(button8==0)

}

display();

} }

void start()

{ EA=1;

TMOD=0x01;ET0=1;

TH0=(65536-4000)/256;

TL0=(65536-4000)%256;}

void delay(uint z )

{ uint x,y;

for(x=z;x>0;x--)

for(y=120;y>0;y--);}

void timer1() interrupt 1

{ TH0=(65536-4000)/256;

TL0=(65536-4000)%256;

k++;

if(k==2) //總忘k把清零

{k=0;num1++;

if(num1==100)

{num1=0;num2++;

if(num2==60){num2=0;num3++;

if(num3==60){num3=0;num4++;

if(num4==24)}

}} }}

void display()

{a=num1/10;b=num1%10;c=num2/10;d=num2%10;

e=num3/10;f=num3%10;g=num4/10;h=num4%10;

wei=1;P0=0x80;wei=0;

duan=1;P0=tab[b];duan=0;delay(1);

P0=0x00;

wei=1;P0=0x40;wei=0;

duan=1;P0=tab[a];duan=0;delay(1);

P0=0x00;

wei=1;P0=0x20;wei=0;

duan=1;P0=tab[d];duan=0;

duan=1;P0=table[d];duan=0;delay(1);

P0=0x00;

wei=1;P0=0x10;wei=0;

duan=1;P0=tab[c];duan=0;delay(1);

P0=0x00;

wei=1;P0=0x08;wei=0;

duan=1;P0=table[f];duan=0;delay(1);

duan=1;P0=tab[f];duan=0;delay(1);

P0=0x00;

wei=1;P0=0x04;wei=0;

duan=1;P0=tab[e];duan=0;delay(1);

P0=0x00;

wei=1;P0=0x02;wei=0;

duan=1;P0=tab[h];duan=0;

duan=1;P0=table[h];duan=0;delay(1);

P0=0x00;

wei=1;P0=0x01;wei=0;

duan=1;P0=tab[g];duan=0;delay(1);

P0=0x00;

}