Hi, (unfortunately I didn't found a question mark in your letter such way I can only guess what do you need as information). Code protected flash PIC chips can be reprogrammed w/o any problem. Imre On Thu, 25 Feb 1999, Jon Petty wrote: > Hi everyone > > I was wondering a couple of things about code protection and flash. If I > enable the code protect fuse can I erase and reprogram the 16F84 or 16F87 > later as a part of an update or do you have to leave the code unprotected to > reprogram. > > > Thanks > > Jon > >