At 10:14 AM 11/4/99 +1100, you wrote: >Erik Reikes wrote: > >> writing fixed values and bsf do not work unless other pins in the circuit >> are also set and switched. I'm also looking at the pin with a scope and >> seeing a high voltage on the sucker. > >Have you tried isolating porta and just use a LED to test? Maybe your >circuit is causing the problem. I just checked the data sheet for F8XX >series and the input circuits on port A and B work with TTL levels (?). > I have it completely out of circuit except for the osc etc. Its sitting on a protoboard. I have disabled the AD's, and setup all of port a as outputs. They don't work according to the manual. That is a bug. 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. -ErikR