These are equivalent. The first example skipped some blank locations. The second example included the original FIRST line, the blank locations and the original SECOND line all in one line. Both versions are legal HEX. At 01:39 PM 5/25/00, you wrote: >Hello, > >I have what will probably seem like a stupid question but here it goes: > >I built a programmer (http://www.jdm.homepage.dk/newpics.htm) and programmed >a 16F84 with the PP.EXE program. The programmer programmed the chip and then >verified it successfully. (Or so the software says). > >I did a read on the chip and had it dump to a file. Below are a few lines of >the original and the dumped hex file starting at line 1 of each. > >Original Hex >:020000000528D1 >:08000800052885008B01093079 >:100010006600C23062000611031EE22864005830F8 >:10002000B6209F20120803110310493A031D05282A > >Saved Hex >:100000000528FF3FFF3FFF3F052885008B01093092 >:100010006600C23062000611031EE22864005830F8 >:10002000B6209F20120803110310493A031D05282A > >The original hex lines 3 and 4 are the same as the saved hex lines 2 and 3 >but the header? is different. Is this normal? If this is normal can I burn >the saved hex to a chip and it operate like the original hex? > >The reason I ask is that I will be building this project this weekend but I >want to know if it is the chip or the circuit if I have problems. > >I hate to bother you with such a simple question but I am new to pics and am >learning slowly. > >Thanks to everyone for your tips and all the great information that comes >through the list. > >Albert Jerry Merrill jerrym@tech-tools.com http://www.tech-tools.com FAX: (972) 494-5814 VOICE:(972) 272-9392 TechTools PO Box 462101 Garland, TX 75046-2101 Join our PIC discussion list at http://www.tech-tools.com/piclist.htm