[En-Nut-Discussion] 2nd UART

[rajan rai]

Hi Jörg,
 
        I'm trying to program USART of Atmega 128L using STK 501 . I'm using JTAG ICE MKII for programming Atmega128L. I connected Serial Cable between Rs232 Port of Stk501 and my PC and than Run Step by step the below program. ideally it should print character 'R' on hyperterminal . But till now I have got any success. I configured AVR Studio to calibrate Oscillator for 8MHz and Fuse setting is for Int RC Osc 8Mhz startup time 6CK + 0Ms
 
 
    // Set baud rate for 9600
      UBRR0H=0x00;
      UBRR0L=0x33;
   // Enable receiver and transmitter
    UCSR0B = (1<<RXEN0)|(1<<TXEN0)|(0<<RXCIE0)|(0<<UDRIE0);
    // Async. mode, 8N1
    UCSR0C = (0<<UMSEL0)|(0<<UPM00)|(0<<USBS0)|(3<<UCSZ00)|(0<<UCPOL0);

   while (!(UCSR0A & (1<<UDRE0))); 
    UDR0 = 'R';
 
                                    Can you please help me. I will really appreciate if you can point me where am I going wrong or tell me settings to make USART of STK501 with Atmega128L work
 
Regards,
-Rajan

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