关于数码管动态扫描程序设计

#include<reg52.h>

#define uchar unsigned char

#define uint unsigned int

#define duan P0

#define wei P1

//----------------------------------------------------------------------------

uchar code weima[8] = {//位选控制查表的方法控制

0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};

uchar code duanma[17] = {//0、1、2、3、4、5、6、7、8、9、A、b、C、d、E、F的显示码

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

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

//----------------------------------------------------------------------------

void delay(uchar x)//延时函数的定义

{

uchar y=110,z;

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

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

}

//----------------------------------------------------------------------------

void main()//主函数

{

while(1)

{

duan=weima[0];

wei=duanma[0];

delay(500);

duan=0x00;

duan=weima[1];

wei=duanma[1];

delay(500);

duan=0x00;

duan=weima[2];

wei=duanma[2];

delay(500);

duan=0x00;

duan=weima[3];

wei=duanma[3];

delay(500);

duan=0x00;

duan=weima[4];

wei=duanma[4];

delay(500);

duan=0x00;

duan=weima[5];

wei=duanma[5];

delay(500);

duan=0x00;

duan=weima[6];

wei=duanma[6];

delay(500);

duan=0x00;

duan=weima[7];

wei=duanma[7];

delay(500);

duan=0x00;

}

}