main.c

这是我以前做过的51单片机实验代码

#include<reg51.h>
#define uchar unsigned char
#define BN 10

uchar rdata[10];
uchar tdata[10] = {"abcdefghij"};
uchar receive(uchar addrs);
void send();
void zhongduan() interrupt 4
{

}
main()
{
TMOD = 0x20;
TL1 = 0xE6;
TH1 = 0xE6;
PCON = 0x00;
TR1 = 1;
SCON = 0xE0;
send();
}
void send()
{
	uchar i, p;
	do{
		p = 0;
		for(i = 0; i < BN; i++)
			{
			SBUF = tdata[i];
			p += tdata[i];
			while(TI != 1);
			TI = 0;
			}
		SBUF = 0;
		while(TI != 1)
			;
		TI = 0;
		while(RI != 1)
			;
		RI = 0;
	}while(SBUF != 0);
	TB8 = 1;
	return ;
}