Erik Reikes wrote: > All manner of code that I had working fine on port b chokes on individual > pins on port A. These are all things that worked on portb pins with > identical block diagrams to similar pins on port A. Possibly a dud chip also - wierder things have happened. Do you have another chip to try out? I have an ES sample I could try, but not handy until I go home. -- Best regards Tony http://www.picnpoke.com Email sales@picnpoke.com