>> 1. I am testing a project that must be developed on 16f84 and finally >> run on 16C54 and 12C508. > That's a very strange "must be" both in terms of target chip and > development environment. Inquiring minds want to know - can you tell us > why it must be done this way? It seems unlikely to be either ythe > easiest or cheapest way of doing things unless there is some reason we > are unaware of. Inquiring minds - royal plural ? The reason is a) the 16c54s are discounted b) I do it this way since long before 16f62x existed c) I have all the toolchain so it's best for me now. Peter -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.