UART串口通信

版权声明：你好，欢迎来到我的博客。 https://blog.csdn.net/zwyjg/article/details/78252238

在STC-ISP里的串口助手的单字符串发送区

发送01   03可点亮小灯

#include<reg52.h>

#define uchar unsigned char
#define uint unsigned int
uchar i;

sbit D0=P0^0;
sbit D1=P0^1;
sbit D2=P0^2;
sbit D3=P0^3;
sbit D4=P0^4;
sbit D5=P0^5;
sbit D6=P0^6;
sbit D7=P0^7;

sbit ADDR0 = P1^0;
sbit ADDR1 = P1^1;
sbit ADDR2 = P1^2;
sbit ADDR3 = P1^3;
sbit ENLED = P1^4;

void init_uart(void)
{
	TMOD=0X20;
	TH1=0XFD;
	TL1=0XFD;
	TR1=1;
	SCON=0X50;
	EA=1;
	ES=1;	
}

void main (void)
{
	ENLED = 0;
	ADDR3 = 1;
	ADDR2 = 1;
	ADDR1 = 1;
	ADDR0 = 0;

	init_uart();
	while(1)
	{
		while(!RI);
		RI=0;
		i=SBUF;
		switch(i)
		{
			case 0x01 :D0=~D0;break;
			case 0x02 :D1=~D1;break;
			case 0x03 :D2=~D2;break;
			case 0x04 :D3=~D3;break;
			case 0x05 :D4=~D4;break;
			case 0x06 :D5=~D5;break;
			case 0x07 :D6=~D6;break;
			case 0x08 :D7=~D7;break;
		}
	}

}