Hi there,

As far as I remember Melanie did give a full reference on the @config issues. I do it in a different way. I edited the 18F452.inc file in the pbp folder and change the XT_OSC to HS_PLL. Actually I run almost all my 18F452 @40MHz. That gives me fastest running code however practical serial communication is limited to 9.6K. Higher rates yield high baud rate error. BTW a simple define "DEFINE osc 40" will make your timing correct under PBP. Keep exploring.

Regards

Sougata