#include <reg51.h>
#define uchar unsigned  char
#define uint unsigned int
uchar  idata trdata[10]={'M','C','S','-','5','1',0x0d,0x0a,0x00};

main()
{ uchar i;
  uint j;
  TMOD=0x20;
  TL1=0xfd;TH1=0xfd;
  SCON=0xd8;PCON=0x00;
  TR1=1; 
  while(1){ 
    i=0;
    while(trdata[i]!=0x00){
      SBUF=trdata[i];
      while(TI==0);
      TI=0;
      i++;
    }
    for (j=0;j<125000;j++); 
  }
}