51单片机一个输出口显示多位输出

电路图

#include"reg51.h"

sbit LE0=P3^0;

sbit LE1=P3^1;

sbit LE2=P3^2;

sbit LE3=P3^3;

int i,j,k;

int xx[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

void yanchi(int ms)

{

while(ms--)

{

for(i=0;i<100;i++);

}

}

void main()

{

while(1)

{

for(j=0;j<10000;j++)

{

P2=xx[j/1000];//千

LE3=0;

yanchi(1);

LE3=1;

yanchi(1);

LE3=0;

P2=xx[(j%1000)/100];//百

LE2=0;

yanchi(1);

LE2=1;

yanchi(1);

LE2=0;

P2=xx[(j%100)/10];//十

LE1=0;

yanchi(1);

LE1=1;

yanchi(1);

LE1=0;

P2=xx[j%10];//个

LE0=0;

yanchi(1);

LE0=1;

yanchi(1);

LE0=0;

yanchi(100);

}

}

}

#include"reg51.h"

#include

int i,j,k,ss;

int xx[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

void yanchi(int ms)

{

while(ms--)

{

for(i=0;i<100;i++);

}

}

void main()

{

while(1)

{

for(j=9900;j<10000;j++)

{

P2=xx[j%10];//个

P1=0X01;

yanchi(1);

P1=0x00;

P2=xx[(j%100)/10];//十

P1=0x02;

yanchi(1);

P1=0x00;

P2=xx[(j%1000)/100];//百

P1=0x04;

yanchi(1);

P1=0x00;

P2=xx[j/1000];//千

P1=0x08;

yanchi(1);

P1=0x00;

if (j==9999)

ss++;

P2=xx[ss%10];//万

P1=0x10;

yanchi(1);

P1=0x00;

P2=xx[(ss%100)/10];//十万

P1=0x20;

yanchi(1);

P1=0x00;

P2=xx[(ss%1000)/100];//百万

P1=0x40;

yanchi(1);

P1=0x00;

P2=xx[ss/1000];//千万

P1=0x80;

yanchi(1);

P1=0x00;

yanchi(10);

}

}

}