; specify device .DEVICE AT90S2313 ; baudrate einstellen ldi r16, 11 ; "38400 bps wert" in r16 out 0x09, r16 ; write to uart baudrate register sbi 0x0a, 3 ; enable tx at uart control register ; transmit 0x23 all the fucking time ... ldi r16, 0x23 ; load 0x23 to register out 0x0c, r16 ; write that to uart data register port LOOP: sbis 0x0b, 5 rjmp LOOP out 0x0c, r16 rjmp LOOP