8.c

单片机串口通信的实例

#include "reg51.h"
#include "string.h"
#define uchar unsigned char 
#define uint unsigned int
uchar data trdata[10]={'R','e','a','d','y',0x0d,0x0a,0x00};
main()
{ uchar i ;
 idata
  uint j ;
  TMOD=0x20;
  TL1=0xfd;
  TH1=0xfd;
  SCON=0x50;
  PCON&=0xef;
  TR1=1;
 do
 	{
 		i=0;
 		while (trdata[i]!=0x00)
 				{
 					SBUF=trdata[i];
 					while(TI==0);
 					TI=0;
 					i++;
 				}
      for(j=0;j<58000;j++);
   }
 while((SBUF^0xbb)!=0);
}