[rescue] SBusFPGA V1.2 w/ native USB, demo cg3 emulation (was: Re: SBusFPGA update: USB Host, 256 MiB DDR3 RAM disk, ... )

[Alexander Jacocks]

That is a really amazing project. I'll definitely be interested in this
board when and if you decide to sell them.

- Alex

On Sat, Oct 9, 2021 at 8:11 AM Romain Dolbeau <romain at dolbeau.org> wrote:

> Le mer. 25 aoC;t 2021 C  18:19, Romain Dolbeau <romain at dolbeau.org> a
> C)crit
> :
> > I'm probably going to do a test of V1.2 soon
>
> The SBusFPGA V1.2 has been made and tested (somewhat) now, and is
> working as hoped for.
>
> It can access more interrupt lines (there's some work to do on the SW
> side to improve the drivers and use those), has a built-in USB port
> with VBus for the USB Host Controller (micro-B, a small cable is used
> to turn it into a female type A), and a Pmod connector for further
> expansion. (and fewer leds, I/O pins had to come from somewhere).
> Pictures are here: <
> https://github.com/rdolbeau/SBusFPGA/tree/main/Pictures>.
>
> Still missing good support for the micro-sd in NetBSD (let alone the PROM).
>
> > the gateware could easily include a dumb framebuffer,
> > perhaps fully emulating a cg3.
>
> The Pmod connector enabled me to test this with a very limited VGA
> output (it only has 2 bits per color channel, so colors are very
> limited).
> The cg3 emulation works as a console in the PROM & NetBSD, and even
> with X11 (very slowly of course, it's still only a cg3 :-) and I can
> use a USB mouse, too!) - and it supports up to at least 1280x1024
> (some internal timings are too tight for 1920x1080 at this stage).
> So now, it just needs a board with a 'proper' output.
>
> ... and maybe some acceleration to turn it into a cg6 :-)
>
> Cordially,
>
> --
> Romain Dolbeau
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