UART lesen Xmega

Mit diesem Code kann ich Daten vom Xmega an meinem PC schicken. Aber 
leider empfängt er nichts??


volatile uint16_t receivedData;

void USART_Receive(void)
{
    /* Receive one char. */
    /* Wait until data received or a timeout.*/
    while ( !( USARTC0.STATUS & USART_RXCIF_bm) );
    receivedData = USARTC0.DATA;
}


void USART_Transmit(unsigned char data)
{
   /* Wait for empty transmit buffer */
   //while ( !( UCSR0A & (1<<UDRE0)) )
   while ( !( USARTC0.STATUS & USART_DREIF_bm) )
      ;
   /* Put data into buffer, sends the data */
   USARTC0.DATA = data;
   //UDR0 = data;
}


void USART_Init(unsigned int bsel)
//void USART_Init(unsigned int ubrr)
{
   /* Set baud rate */
   USARTC0.BAUDCTRLB = (unsigned char)(bsel>>8);

   USARTC0.BAUDCTRLA = (unsigned char)bsel;
   //UBRR0H = (unsigned char)(ubrr>>8);
   //UBRR0L = (unsigned char)ubrr;

   /* Set frame format: 8data, 1 stop bit */
  USARTC0.CTRLC = (USARTC0.CTRLC & ~USART_CHSIZE_gm) | 
USART_CHSIZE_8BIT_gc;
   //UCSR0C = (3<<UCSZ00);

   /* Enable receiver and transmitter */
   USARTC0.CTRLB = (USART_RXEN_bm | USART_TXEN_bm);
    //UCSR0B = (1<<RXEN0)|(1<<TXEN0);
}


int main(void)
{
PORTC.DIR |= 0x08;
USART_Init(0x0C);
while(1)
    {
    USART_Receive();
    USART_Transmit(receivedData);
    }
return 0;
}