> I've got a 27C512 EPROM from a prototype game that unfortunately is only giving a
> partial dump, I've heard it appears one address line isn't working, apparently at
> xxxxx1xxxxxxxxxx = 0xFF
> Aside from trying multiple dumps on different programmers and cleaning the legs, are
> there any tricks people know of that might get me a complete and good read? It only
> needs to work once! We're pretty much screwed if we can't get it to dump as there's
> no other source for that ROM.
has somebody confirmed that there is actually missing data
while that error can sometimes indicate there is a dumping problem, it can also sometimes indicate that the unused areas of the rom simply fall on the areas enabled by that address line.
it's one of those 'get somebody who knows what they're doing to analyze the dump' errors.
Edited by Haze (09/28/17 04:09 AM)