[Open-graphics] A really good immediate use for OGD1: PCI bus analyzer

[Timothy Miller]

On 1/1/07, Tim Schmidt <timschmidt at gmail.com> wrote:
> On 1/1/07, Daniel Rozsnyó <daniel at rozsnyo.com> wrote:
> > If we could use an opencores cpu and create an embedded single-task "pc"
> > in the analyzer card, it can use its own dvi output, or two to display
> > the data, is that fast enough? ;) And instead of creating an RS232
> > interface, we make one for PS/2 (keyboard and optionally mouse).
> >
> > (I have no idea if there is a synthetizable and stable core which has
> > gcc support so it could be programmed quickly to behave as an logic
> > analyzer gui)
>
> That is an awesome idea...  we already have all the hardware to talk
> to the display...  So long as the VGA-emulation code could be hacked
> into doing double-duty, we might have enough extra room for a very
> simple general purpose CPU.

I kinda think we NEED something of a general-purpose CPU in there in
order to handle the protocol with the display workstation.  At the
very least, we can use the one I'm going to have to design for OGA to
do DMA.

It doesn't have to be THAT complex, but it's much easier to write
software than design hardware to handle the protocol.

-- 
Timothy Miller
http://www.cse.ohio-state.edu/~millerti