Do you have a photo of the markings on the ROM? Might help us identify.
Also I would suggest you start with a clear buffer and try to read the ROM and see if it is already programmed with something else.
If not you may need to erase it first, that is if it is an erasable device?
Again a photo may help.
Personally I try to get only erasable ROMs (Either electrically or with UV) as there is a path back if you get things wrong.
Also, I'd suggest trying to find a datasheet for the ROM and confirm that you have the correct programming voltage set. There are some older ROMs that the TL866 can't handle due to the voltages required.
Also I would suggest you start with a clear buffer and try to read the ROM and see if it is already programmed with something else.
If not you may need to erase it first, that is if it is an erasable device?
Again a photo may help.
Personally I try to get only erasable ROMs (Either electrically or with UV) as there is a path back if you get things wrong.
Also, I'd suggest trying to find a datasheet for the ROM and confirm that you have the correct programming voltage set. There are some older ROMs that the TL866 can't handle due to the voltages required.
Statistics: Posted by Ronin47 — Sat Mar 09, 2024 12:35 pm