pc_mcu.c

C8051F020串口与计算机通信的编程

#include<reg51.h>
#define uchar unsigned char 
#define SLAVE 0xF1
void send();	
main()
{	TMOD=0x20;			   //C/T为三，自动重装载
	TH1=TL1=0xE5;		   //1200的初值
	PCON=0x00;			   //smod=0
	TR1=1;
	SCON=0x50;	
	while(1){		   //串口模式为1
	send();	 }
}
void send()
{	
	 SBUF=0x59;
	 while(TI!=1);
	 TI=0;
	 TB8=1;
}