// 51微控制器控制八個發光二極體 左右迴圈。

#include

#define uchar unsigned char

#define uint unsigned int

unsigned char TAB[]= {0xff,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff,0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,0xff}; // 改變這裡 LED 各種花樣

uchar t,i;

void main()

{

TMOD=0x10;

TH1=(65535-50000)/256; // 50ms一次

TL1=(65535-50000)%256;

EA=1;

ET1=1;//開定時器1中斷

TR1=1;//啟動定時器1

t=0;

i=0;

while(1)

{

}

}

void timer1() interrupt 3

{

TH1=(65535-50000)/256; // 50ms一次

TL1=(65535-50000)%256;

t++;

if(t==20)

{

t=0;

P2=TAB[i];

i++;

if(i==18) { i=0;}

}

}