51单片机AT89C52数码管电子钟proteus仿真实验

#include<reg52.h> #define uchar unsigned char #define uint unsigned int sbit dula=P3^0; sbit wela=P3^1; uchar num1=0,num2=0,num3=0; uchar count=0; uchar temp[6]={0,0,0,0,0,0}; void delayms(uint x) //1ms { uint y,z; for(y=x;y>0;y--) for(z=111;z>0;z--); } uchar code table[]={ //共阳数码管 0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e}; void smg() { dula=0; wela=0; P2=0x01; wela=1; wela=0; P2=table[temp[5]]; dula=1; dula=0; delayms(3); P2=0x02; wela=1; wela=0; P2=table[temp[4]]; dula=1; dula=0; delayms(3); P2=0x04; wela=1; wela=0; P2=0xbf; dula=1; dula=0; delayms(3); P2=0x08; wela=1; wela=0; P2=table[temp[3]]; dula=1; dula=0; delayms(3); P2=0x10; wela=1; wela=0; P2=table[temp[2]]; dula=1; dula=0; delayms(3); P2=0x20; wela=1; wela=0; P2=0xbf; dula=1; dula=0; delayms(3); P2=0x40; wela=1; wela=0; P2=table[temp[1]]; dula=1; dula=0; delayms(3); P2=0x80; wela=1; wela=0; P2=table[temp[0]]; dula=1; dula=0; delayms(3); } void proc() { temp[0]=num1%10; temp[1]=num1/10; temp[2]=num2%10; temp[3]=num2/10; temp[4]=num3%10; temp[5]=num3/10; } void main() { while(1) { proc(); smg(); count++; if(count==41) { count=0; num1++; if(num1>=60) { num1=0; num2++; if(num2>=60) { num2=0; num3++; if(num3>=60) { num3=0; } } } } } }