Hi, I'm using PIC18F8621 with 40 MHz crystal and I've just tested it with an oscilloscope. The odd thing is that it shows that the frequency is about 13MHz on both outputs (X1 and X2). What could be the reason of it? Load capacitance? I would be very grateful for every advice. Thank you, Sam ########################################### This message has been scanned by F-Secure Anti-Virus for Microsoft Exchange. For more information, connect to http://www.f-secure.com/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist