Sry, the paranthesis ended up in the wrong place... I mean: #define T0BRR1 (T0BRR + T0BRR/3) //Timer-Load für Baudrate nach Int0 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://dragonsgate.net/pipermail/icc-avr/attachments/20080124/9e1af124/attachment.html