求51单片机控制2个数码管的程序

两只数码管段码分别由P0,P2输出控制，P0是十位，P2是个位。P3.2,P3.4分别接两只按键，P32.清0，P3.4计数。

以上程序来自《单片机C语言程序设计实训100例——基于8051+Proteus仿真》

#include <reg52.h>

#define uchar unsigned char

#define uint unsigned int

uchar DSY_CODE[]=

{

0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f

};

uchar Count = 0;

void main()

{

P0 = 0x00;

P2 = 0x00;

TMOD = 0x06;

TH0=255;

TL0=255;

ET0=1;

EX0=1;

EA =1;

IP =0x02;

IT0=1;

TR0=1;

while(1)

{

P0 = DSY_CODE[Count/10];

P2 = DSY_CODE[Count%10];

}

}

void Clear_Counter() interrupt 0

{

Count = 0;

}

void Key_Counter() interrupt 1

{

Count = (Count + 1) %100;

}