main2.c

以中断,触发方式实现51单片机的串口通信程序,可用串口精灵调试

#include <reg52.h>

void main(void)
{
	unsigned char a;

	TMOD = 0x20;
	TL1 = 0xFD;
	TH1 = 0xFD;
	SCON = 0xD8;
	PCON = 0x00;
	TR1 = 1;
	while (1)
	{
		while (RI == 0);
		RI = 0;
		a = SBUF;
		SBUF = a;
		while (TI == 0);
		TI = 0;
	}
}