4(2).rar_LED数码管显示

#include<reg52.h> #define uint unsigned int #define uchar unsigned char uchar temp,aa,bai,shi,ge; sbit dula=P2^6; sbit wela=P2^7; uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; void display(uchar bai,uchar shi,uchar ge); void delay(uint z); void init(); void main() { init();//初始化子程序 while(1) { if(aa==20) { aa=0; temp++; if(temp==100) { temp=0; } bai=temp/100; shi=temp%100/10; ge=temp%10; } display(bai,shi,ge); } } void delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void display(uchar bai,uchar shi,uchar ge) { dula=1; P0=table[bai]; dula=0; P0=0xff; wela=1; P0=0xfe; wela=0; delay(1); dula=1; P0=table[shi]; dula=0; P0=0xff; wela=1; P0=0xfd; wela=0; delay(1); dula=1; P0=table[ge]; dula=0; P0=0xff; wela=1; P0=0xfb; wela=0; delay(1); } void init() { wela=0; dula=0; temp=0; TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; EA=1; ET0=1; TR0=1; } void timer0() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50000)%256; aa++; }