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

[Timothy Miller]

On 1/1/07, Daniel Rozsnyó <daniel at rozsnyo.com> wrote:

> > The data capture running on the OGD can only talk to the analyzer
> > software at RS-232 speeds, (which are officially capped at 20,000
> > although most systems these days can run much faster) but the analyzer
> > software is likely to have a faster path to the display, most likely
> > either a video card in the same machine or an Ethernet connection to a
> > machine with the display.
>
> 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)

This is neat, but it's going overboard for the moment.  Sure, OGD1 has
video on it, so that's an interesting idea.  But if you embed
everything into the tracer, you lose the ability to do things like
save traces to disk.

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