LED点阵显示数字设计C语言程序

#include <reg52.h>

#include <intrins.h>

#define uchar unsigned char

#define uint unsigned int

uchar code Table_OF_Digits[]=

{

0x00,0x3e,0x41,0x41,0x41,0x3e,0x00,0x00,

0x00,0x00,0x00,0x21,0x7f,0x01,0x00,0x00,

0x00,0x27,0x45,0x45,0x45,0x39,0x00,0x00,

0x00,0x22,0x49,0x49,0x49,0x36,0x00,0x00,

0x00,0x0c,0x14,0x24,0x7f,0x04,0x00,0x00,

0x00,0x72,0x51,0x51,0x51,0x4e,0x00,0x00,

0x00,0x3e,0x49,0x49,0x49,0x26,0x00,0x00,

0x00,0x40,0x40,0x40,0x4f,0x70,0x00,0x00,

0x00,0x36,0x49,0x49,0x49,0x36,0x00,0x00,

0x00,0x32,0x49,0x49,0x49,0x3e,0x00,0x00,

};

uchar i=0,t=0,Num_Index = 0;

void main()

{

P3 = 0x80;

Num_Index = 0;

TMOD = 0x00;

TH0 = (8192-2000)/32;

TL0 = (8192-2000)%32;

TR0 = 1;

IE = 0x82;

while(1);

}

void LED_Screen_Display() interrupt 1

{

TH0 = (8192-2000)/32;

TL0 = (8192-2000)%32;

P3 = _crol_(P3,1);

P0 = ~Table_OF_Digits[Num_Index * 8 +i];

if(++i == 8) i = 0;

if(++t == 250)

{

t = 0x00;

if(++Num_Index == 10) Num_Index = 0;

}

}

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