; specify device .DEVICE AT90S2313 ; baudrate einstellen ldi r16, 11 ; "38400 bps wert" in r16 out UBRR, r16 ; write to uart baudrate register sbi UCR, TXEN ; enable tx at uart control register ; transmit 0x23 all the fucking time ... ldi r16, 0x23 ; load 0x23 to register out UDR, r16 ; write that to uart data register port LOOP: sbis USR, UDRE rjmp LOOP out UDR, r16 rjmp LOOP