ROM DUMPING

[lurpak]

just started investigating this kind of thing, anyway, I have a willem programmer and have done some succesfull PC bios reads/writes, have just ripped an old cart to bits (dont worry a commoner) now how do I read
an old rom not listed in my willems devices

its an M2316 rom

[AlanD]

If it was a chip from a cart, I would get the cart port pinout from the console and trace the lines out and determine the pinout. After that see if any eproms match up to that pinout. If not you may have to get a pair of sockets and stack them then run jumpers from pin to pin to adapt the pinout.

If you don't want to go to that effort you can just try and read it as a 2516 if you think it is a 2K cart :) I wouldn't try and write it that way as the voltages may not be correct to make the burn.
AlanD

[lurpak]

it turns out that it has almost the same pinouts as a 2716 however when I read this it comes out all 00 00 00 00 :(

[leonk]

00 = all bits are on. (empty is FF)

You're doing something wrong. Get the spec sheets and try again.