On 4/16/08, Dieter <[EMAIL PROTECTED]> wrote:

Here's what I changed the ATI thing to:

** Why do we need OGD1 and the OGP now that ATI is finally releasing
programming documentation for their GPUs?

We applaud ATI for doing the right thing and making available their
GPU documentation for use by Free Software developers.  ATI may have
an impact on our narrow focus on graphics (although there are still
graphics niches where we fit in), but they in no way impact our
broader goals of enabling hardware hacking and bringing open hardware
to the people.

>
>
>  > >  > Two pairs of DVI transmitters (dual link)
>  > >
>  > >
>  > > Two dual link DVI-I ports  [ both are DVI-I, right? ]
>  > >  s-video port
>  >
>  > Only one is DVI-I.  I added the TV-out.
>
>
> Two dual link DVI ports, one DVI-I, one DVI-D
>  or
>  One dual link DVI-I port
>  One dual link DVI-D port
>
>  Most people, even many EEs, will not know what "Two pairs of DVI transmitters
>  (dual link)" gets them.  Most people will know what a DVI port is.  Some
>  might not know what the -A, -D, -I suffix means, or what dual link means.
>  For the web version of the FAQ, DVI could be a link to an explanation,
>  either a page on TT/OGP/OHF, or something like wikipedia.
>
>
>  > 330MHz RGB/VGA triple DAC
>
>
> Many people will not know what 330MHz gets them.  Maybe add the maximum
>  resolutions supported for DVI digital, DVI analog, and s-video.
>  Yeah it changes with refresh rate, maybe use 60 Hz since that is what
>  most LCDs run at.
>

One dual-link DVI-D port (digital only, up to 2560x1600)
One dual-link DVI-I port (digital and analog)
330MHz RGB/VGA triple DAC (analog at least [EMAIL PROTECTED])

I'm concerned that this makes it look like we have three ports.  There
are two (not counting the svideo).

>
>  > 68 user I/O signals on an optional 100-pin ICD connector
>
>
> So the idea is the customer buys a connector and solders it on?
>  IIRC the connector is more expensive than one would expect,
>  but leaving off a connector on a $1500 board doesn't sound right.
>  Customers may not like the idea of risking their warranty by
>  modifying the board.

68 user I/O signals for a 100-pin ICD connector

I use the preposition "for", rather than "on".  Is this misleading?
I'm not sure exactly how to describe what they're getting.  The pin
holes are arranged for an IDC connector.

>  If there are examples of "how big of a problem can I tackle with
>  this board" other than the obvious GPU development, that
>  might be good to include.
>

Good idea.  But I'm not sure what to say yet.

-- 
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Open Graphics Project
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