Hi all, There seems to be some discrepancies with FUSES in these chips. The programming spec lists up to 7 words for FUSE locations, but also mentions only 4 FUSE words used. 4 words are listed in the 18F252.INC file, 7 listed in 18F258.INC. MPLAB seems to keep all 7 words shown in it's programming window, and only varies the CCP2 Mux between chips which is also listed in the data sheet as being correct. You also get compile errors if you try to code protect sections of ROM because they are not included in the INC files. Is any of this correct ??? :-) -- Best regards Tony mICros http://www.bubblesoftonline.com mailto:sales@bubblesoftonline.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu