stdin stdout & Co über UART laufen lassen.

[PicNick]

Ich glaub', so geht's.

static int uart_putchar(char c, FILE *stream);

static FILE mystdout = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);

static int uart_putchar(char c, FILE *stream)
{
   //while (!(UCSRA & (1<<UDRE)));  //warten bis Senden moeglich                   
   if (c == '\n')
   {
      uart_putchar('\r',&mystdout);
   }
   loop_until_bit_is_set(UCSRA, UDRE);
   UDR = c;
   return 0;
}
.....................

    printf ("Trilulliöö\n");