uarta.c

单片机双机串口通信演示程序,里面包含preoteus仿真

#include <reg51.h>
#include <stdio.h>
sbit start = P2^6;
sbit busy = P2^7;

void main(void){
	unsigned char i;
	unsigned char *ptr = "my name is hwq\n\0";
	TMOD = 0x20;
	TH1 = 0xfd;
	TL1 = 0xfd;
	//IE = 0x88;
	TR1 = 1;
	SCON = 0xd0;
	while(1){
		while(start);
		for(i=0; ptr[i]!=0x00; ++i){
			ACC = ptr[i];
			TB8 = P;
			SBUF = ACC;
			while(!TI|busy);
			TI = 0;
		}
		while(!start);
	}
}