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#include<reg51.h>
#include<string.h>
#define uchar unsigned char
sbit LED=P1^0;
uchar buf[16],num;
uchar strOpen="Open";
uchar strClose="Close";
void uart() interrupt 4
{
if(RI)
{
RI=0;
buf[num]=SBUF;
num++;
}
if(TI)TI=0;
}
void initbuf()
{
uchar i;
for(i=0;i<16;i++)buf[i]=0x00;
}
main()
{
TMOD=0x20;
SCON=0x50;
TH1=TL1=0xfd;
TR1=1;
ES=1;
EA=1;
initbuf();
while(1)
{
switch(num)
{
case 0:break;
case 1:break;
case 2:break;
case 3:break;
case 4:
if(strcmp(strOpen,buf)==0)LED=0;
initbuf();
num=0;
break;
case 5:
if(strcmp(strClose,buf)==0)LED=1;
initbuf();
num=0;
break;
default:num=0;break;
}
}
}
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