At 04:55 AM 8/3/2005, Palmed GmbH wrote: >How can you do this? >Datasheet says, that ALL inputs have pull ups except GPIO3?!?!? >Any tricks? Dimitry is referring to a trick sometimes used with some of the earlier 8-pin parts. The 12c508 family *does* have a software controlled weak pull-up option for pin GPIO3. Newer parts do not have this option. dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 21 years of Engineering Innovation (1984 - 2005) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist