Re: Hardware specs?

[Keith O'Conor <Keith.OConor@cs.tcd.ie>]

Thanks for the reply. I've applied to the ATI Developer Relations 
program under the project I'm working on, maybe they'll see fit to give 
me some manuals - I'm only looking for details on chips circa 9200, 
nothing too recent.

Until then, I've dug up Voodoo3 and Matrox G400 datasheets - I'll go 
through the relevant code armed with these and see if I can figure 
things out that way. I'm sure I'll have a question or two to ask you on 
the way!

Thanks,
Keith

Michel Dänzer wrote:

>On Wed, 2005-08-17 at 17:00 +0100, Keith O'Conor wrote: 
>  
>
>>Up until now I've been only developing graphics applications, so alot of 
>>these things are new to me - pixel clocks, horizontal timings, PLL, MTRR 
>>etc.etc.... it's all quite overwhelming. I've been reading as much as I 
>>can, but there are still big gaps in my understanding - how did everyone 
>>else get up to speed in this area?
>>    
>>
>
>I did it basically the way you're doing it, by reading and tweaking
>code. :)
>
>
>  
>
>>My main problem is that although it's fairly easy to follow the radeonfb 
>>source and the fb in general, when it comes to what register does what 
>>I'm completely lost. Did the people who wrote the driver have technical 
>>specs from ATI telling them which did what? 
>>    
>>
>
>Some of us do, yes.
>
>  
>
>>Are the specs openly available, only under NDA, or not at all?!
>>    
>>
>
>Only under NDA, and I'm afraid it's hard to get them even under that
>ATM. Your best way forward might be to ask specific questions about
>existing code.
>
>
>  
>

_____________
Keith O'Conor
Image Synthesis Group
Computer Science Department
University of Dublin, Trinity College
http://isg.cs.tcd.ie/keith



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