chuanko.c

基础串口通信技术及相应例证

#include<reg51.h>
#include <intrins.h>
sbit P2_0=P2^0; 
unsigned i;  
unsigned char j;
char a=0;
void main()
{
  EA=1;
  ES=1;
  SCON=0X00;
  j=0x01;
 while(1)
  {
   P2_0=0;
   SBUF=j;  
 
   }
}
void seri() interrupt 4
{
 P2_0=1;
 TI=0;
 j=_crol_(j,1);
 for(i=0;i<=50;i++) {;}


}