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| jennifer:
I know nothing on this subject other than apparently some of the better programs dump the Rom 3 times under different voltage conditions and compare the results.... Would anybody here happen to know what program that is, and any helpful information on the subject. As always, Your friend Jennifer |
| Haze:
no replies? you'd be better off talking to people like the Dumping Union when it comes to such questions. I'm not sure how many do this type of thing automatically, afaik the best ones do what you tell them to, nothing more, nothing less, but the general advice is that once you've finished dumping something you should go through all the chips and do them for a second time, to make sure they match. While such techniques don't eliminate 'used the wrong settings' issues (or even in some cases the programmer software being buggy and not actually having the correct pinout for things and thus producing bad dumps) they will pick up on roms suffering from bitrot, or insertion errors etc. which become evident if your two dumps don't match. |
| jennifer:
After a bit of research What you say may be true... OMG, Haze, you live in a dark world. The Mame Isnt really where I was headed with this project, but apparently they are the only group of people that understand whats going on under the hood. do they have a fourm or anything, All I seem to find is random awesome spread over a large area.... EDIT, I found them, thank you. ;) |
| NOP:
I have a fairly pro-end eeprom burner/reader (http://www.ebay.com/itm/BP-Microsystems-BP1200-BP-1200-Universal-Device-Programmer-/360727685911?pt=LH_DefaultDomain_0&hash=item53fd0bab17) and it not only supports hundreds of different rom types/manufacturers and sets up the programmer appropriately for them, but it also verifies the data is read at different voltages to make sure it got the data correct. The trick is being able to identify the part correctly, which may require removal of stickers that might be on them. :( Not that I suggest you go out and buy such a thing (mine was a gift from work and didn't realize til I dug this one up on ebay how expensive it still is), but maybe you find a local nerd who can dump your eeproms for you if you really want to be positive you are getting the data out. Lots of vintage computer geeks like me actually have these eeprom burners set up in their offices for just such an occasion! |
| jennifer:
Thats a suprising twist to this project, although now I know what the tools of the trade are, [at least one of them]. This burner seems to be a bit on the "older" end but of top of the line quality, and I must say the the price is a little shocking, but not out of line... The sticker your refering to once removed kinda voids the theoretical warenty and points to the fact its been tampered with? |
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