PIC16F877A - MIKRO C - UART

UART  COMMUNICATION

 void main()

               {

              int a;

               trisb=0x0;

               lcd_cmd(lcd_clear);

               lcd_init(portd);

              usart_init(9600);

                while(1)

                {

               while (usart_data_ready ())  //checks whether the data is available

                {

                a=usart_read();  //reads the data

                }

                usart_write(a); //sends the date

                if(a=='n' )          //if recived letter is small letter n , then all led in PORTB will high

                {

                portb=0xff;

                }

                else

                {

                portb=0x00;

                }

                }

                }