[51]數碼管

//數碼管跑馬燈

#include<reg52.h>

#define uint unsigned int

uint led[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e}; //p0端0到f，0x7f爲點

uint ledx[]={0x00,0x0e,0x0d,0x0b,0x07,0xff} ;             //p2端都亮，到都滅

void delay(unsigned int xms)                                      //延時程序

{

    unsigned int x,y;

    for(x=xms;x>0;x--)

        for(y=110;y>0;y--);

}

void main(void)

{    unsigned int a=10000;

    while(1)

    {

        int tem=1;

        int i=0;

        while(1)

        {      

           P0=led[i];

           P2=ledx[tem];

           delay(800);

           if(tem==4&&i==9){tem=1;i=0;continue;}

           else if(tem==4){tem=1;i++;continue;}

           else if(i==9){i=0;tem++;continue;}

           tem++;

           i++;

        }

    }

}

//顯示1314

#include<reg52.h>

#define uint unsigned int

uint led[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e}; //p0端0到f，0x7f爲點

uint ledx[]={0x00,0x0e,0x0d,0x0b,0x07,0xff} ;                //p2端都亮，到都滅

void delay(unsigned int xms)                                         //延時程序

{

    unsigned int x,y;

    for(x=xms;x>0;x--)

        for(y=110;y>0;y--);

}

void main(void)

{    

    while(1)

    {

       P2=ledx[1];

       P0=led[1];

       delay(5);

       P2=ledx[2];

       P0=led[3];

       delay(5);

       P2=ledx[3];

       P0=led[1];

       delay(5);

       P2=ledx[4];

       P0=led[4];

       delay(5);

    }

}