program for Serial communication using 8051

/*************************** Serial communication *************************/

Transmission program

#include <reg51.H>

void main()

{

      unsigned char i, a[]="VENKY NAIDU";

      TMOD=0X20;                                  //timer1 mode2

      TH1=0XFD;                                     //loading the value to generate baud rate 9600

      SCON=0X50;                                    //mode 1 and set REN (Receive enable) bit

      TR1=1;                                                //start the timer

      for(i=0;i<7;i++)

      {         

                  SBUF=a[i];                            //transmit character 'a' through SBUF register           

                  while(TI==0);                          //monitoring TI bit until become 1

                 

                  TI=0;                                       //clear the TI bit

}

    }