Does Microchip or anyone else offer a summary of the differences (especially the gotchas) between the 18C and 18F parts? I checked Microchip's website, but could only find app notes for moving from other families (16,17) to the 18 family. I don't see a comparison in the 18F data sheet either. A colleague is having trouble with code that runs fine on the 18C but not on the 18F. We know about the LVP config bit difference. Thanks for any help. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.