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用AT89C2051做的8只LED显示摇摇棒
文章地址 http://www.66kv.cn/Article/ShowArticle.asp?ArticleID=77
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#include <reg51.h> 
#define SEG 17 //每帧图片分成17列来显示 
#define INTERVAL 20 //每幅图片在左右摇摆20次后换下一幅

typedef unsigned char uchar; 
typedef unsigned int uint;

code char pattern[17][3]={ //3幅图片的字模 
{0xff,0xff,0xff}, 
{0xff,0xff,0xff}, 
{0xff,0xff,0xff}, 
{0xff,0x9f,0xff}, 
{0xff,0x6f,0xf9}, 
{0xff,0x77,0x65}, 
{0xfe,0xbb,0x1e}, 
{0x7e,0xdd,0xfe}, 
{0x00,0xee,0xfe}, 
{0x7e,0xdd,0xfe}, 
{0xfe,0xbb,0x1e}, 
{0xff,0x77,0x65}, 
{0xff,0x6f,0xf9}, 
{0xff,0x9f,0xff}, 
{0xff,0xff,0xff}, 
{0xff,0xff,0xff}, 
{0xff,0xff,0xff}, 
};


uchar phase,th1,tl1,index,count;


main() 
{ 
EA=0; 
EX0=1; 
ET1=1; 
PX0=1; 
IT0=1; 
TMOD=0x11; 
index=0; 
EA=1; 
while(1) 
{ 
} 
}

void Int0_Handle(void) interrupt 0 using 2 
{ 
uint t0_time; 
TR0=0; 
TR1=0; 
TF1=0; 
t0_time=TH0<<8|TL0; 
TL0=0; 
TH0=0; 
TR0=1; 
t0_time=65535-t0_time/SEG; 
th1=t0_time/256; 
TH1=th1; 
tl1=t0_time % 256; 
TL1=tl1; 
if (count<3*INTERVAL){ //3幅图片循环 
count++; 
} 
else{ 
count=0; 
} 
index=count/INTERVAL; 
if (th1!=0xff || tl1!=0xff){ //如果摆动特别慢，定时器溢出就不显示 
phase=0; 
TR1=1; 
} 
else{ 
TR1=0; 
} 
}

void Timer1(void) interrupt 3 using 3 
{ 
if (phase<SEG) //17段依次显示 
{ 
P1=pattern[phase][index]; 
phase++; 
TH1=th1; 
TL1=tl1; 
} 
}