Spehro Pefhany wrote: > At 10:19 AM 3/27/2004 -0600, you wrote: > >> Use what comes on your computer. At dos prompt type >> >> FC file1 file2 >> >> simple and free. I wrote a compare program in the Deep Dark Distant DOS Days, when computers actually worked. You have to first create an output image set to the erased value of your device. In the case of Microchip parts, its a file of words set to h'fff'(12b PICs), h'3fff' (14b PICs), or h'ffff' (16b PICs). Then, using the extracted Hex format, fill in all the data as indicated. Do the same for the second file, then compare the output images byte for byte. --Bob --- Replies: NOTE-Script, EXE,BAT and COM files will be rejected by server -------------- Bob Axtell PIC Hardware & Firmware Dev http://beam.to/baxtell 1-520-219-2363 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads