[rescue] SS20 screen not found

[Mouse]

>> Plausible search terms include cg14, cgfourteen, and VSIMM.  If you
>> want one of the 8M ones (capable of more than a megapixel at >8bpp),
>> prepare yourself for a certain amount of sticker shock.  4M VSIMMs
>> are *relatively* cheap and available; the 8M ones somewhat less so.

> Great, thanks for the info!  You're right that the 8MB modules are
> quite expensive, and I can't even find a 4MB module for sale
> anywhere.

That's odd.  While I haven't looked recently, every time I have looked
the 4M ones have been relatively available and the 8M ones are
expen$ive.  I'm surprised they've dried up that much.

> I'm thinking a better move for now would be to replace it with an
> SBus framebuffer card, then I could even reclaim that socket for more
> memory capacity.

Depending on what you want to use your framebuffer for, yes, that might
be a good plan.

> Is there any good technical documentation on these VSIMM modules?

Not that I'm aware of.  I suspect it would take someone with a logic
analyzer attacking the I/O of a card in live use to get anywhere, and
even that would likely be difficult.  It also would probably have
fairly little commercial value, making it difficult to fund any parts
that call for funding.

> [...].  The main thing I'd need is some specification of how the
> module is supposed to identify itself and provide the included logo
> image and such, as well as the pinout.

I'm not actually sure it includes the log image; that could be in the
machine's main ROM, just used only when a cg14 is found.  I'd have to
dump the main ROM to be sure.

> Exact board dimensions would also be nice but I can get out the
> calipers if I have to.

Yeah, the mechanical interface is not something that can really be kept
secret! :-)

					Mouse