sy.c

单片机实现双向通信

#include "reg51.h"
//unsigned char record;
//unsigned char astring[][8],i;
//unsigned char a;
sbit K=P2^1;
void main()
{
unsigned char astring;
TMOD=0x20;
TH1=0x00;
TL1=0x00;
SCON=0x50;
PCON=0x00;
TR1=1;
ES=1;
while(1)
{REN=1;
K=0;
while(RI==0);
K=1;
RI=0;
astring=SBUF;
P1=astring;
REN=0;
}
}





/*

serial()interrupt 4 using 1
{

RI=0;
if(SBUF==0x24)
{
record=1;
i=0;
astring=0;
}
if(record==1)
{
astring[i]=SBUF;
i++;
if(SBUF=='*');
record=0;
}
}

*/