原创 数码管显示c51程序protues

//动态显示数码管，第1个数码管从0开始显示，

//以后每次显示位数加1，且数加以，从0到f动态显示

//时间：*****

#include

#define uchar unsigned char

#define uint unsigned int

sbit duan="P2"^0;

sbit wei="P2"^1;

void delay(uint ms);

//位选从一位到两位到三位的编码

unsigned char code table1[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};

//段选的编码

unsigned char code table2[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,

0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};

void main()

{

       uchar i;

       wei=0;

       duan=0;

       while(1)

       {

              for(i=0;i<16;i++)

              {

                     wei=1;

                     P1=table1[i%8];  //位选值到8个时，从新开始

                     wei=0;

                     duan=1;

                     P1=table2;