Emu XL-7 & MP-7 User's Group

You know,
If anyone knows the memory format and the electrical behaviour of the
rom sockets (ie, what data lines, and address lines and timing
information), it wouldn't be than hard to make your own flash rom
cards...

Is it worth trying to reverse engineer the format?  would there be
much of a market for them?

On 4/30/06, ferrograph632 <goddard.duncan@...> wrote:
> >>While researching E-Mu Flas ROMS I ran across the following (from
> 2005) on another board.  Does anyone know anything about this?<<
>
> steve- I've seen this correspondence too, & I may even have taken part
> in it. I have a bit of history with the emu flash rom authoring thing
> (see "emus on acid" forum for the whole story) which eventually worked
> out fine... all emu ultra samplers are not created equal, it seems, &
> the long & the short of it is to make sure you get a lump of hardware
> (never mind the right version of EOS) that can actually perform the
> burn. so I have an v4.7 e5k ultra here that works in every other
> respect but cannot author flash roms. my e6400ultra does it fine.
>
> anyway- back to the plot. I too have seen one or two of the later
> factory roms that appear to be flash roms- either they look similar
> physically or they actually have "emu flash sound rom 32Mb" or
> somesuch printed on them.
> they aren't. they don't.
> I have a "composer" set here that I got in a pk6; it looked very like
> the flash sticks I have elsewhere, & since I already had the composer
> set twice, I tried to burn over it.
> it doesn't work.
> curiously, the sampler boots & says "flash rom installed", & the rom
> appears in the disc menu with the flash rom icon. there the similarity
> ends. I forget the error message- will report on this again if you're
> sufficiently curious.
>
> same deal with the audity expansion I eventually extracted from emu.
> (since this set is so hard to get hold of, I decided to copy it into
> my sampler- which worked fine- & then re-author it onto itself. the
> sampler refused. the rom survived intact.)
>
> there is something- a small but significant chip- on the "real" flash
> roms that is absent from the "leftover" flash roms emu were shipping
> towards the end of their hardware days.
> somewhere out there on another forum are jpegs of the three distinct
> roms I have encountered- the "real" factory roms, the "real" factory
> flash rom that can be authored in an ultra & which will work in the
> proteus chassis models, & this third sort (which comes in several
> shapes but is basically the same) which seems to be flash rom with one
> of the chips missing.
> again, I can probably unearth these pics if you are really curious
> about this.
> maybe emu were using these instead of getting "real" roms made because
> they weren't making the roms in such big numbers anymore. I don't know.
> what I do know is that there is a premium on any of this stuff right
> now. I got three 32Mb flash sticks right at the death, & consider
> myself fortunate. there are other emu roms I wish I could erase & burn
> over, but sadly it doesn't appear to work like that.
> hth-
> duncan/r.m.i.
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