tr.c

51单片机之间的串行通信程序

#include"reg51.h"
#define uchar unsigned char
#define uint unsigned int
void main()
{
	 uchar i=0;
	 TMOD=0X20;
	 TH1=0XFF;
	 TL1=0XFF;
	 SCON=0X40;
	 PCON=0X80;
	 TR1=1;
	 P1=0XFF;
	 while(1)
	 {
		while(P1==0XFF);
		i=P1;
		SBUF=i;
		while(TI=0);
		TI=0;
		while(P1!=0xff);



	 }



}