On Apr 21, 2007, at 2:46 AM, Jeff Walther wrote:
Rob,
Amongst the SE/30 collection crowd there is near fanatical interest
in the old Xceed Color 30, Color 30HR, and MacroColor 30 -- the
cards which install in an SE/30 and are compatible with the
Grayscale board.
I've been slowly working my way around to designing a new card to
do the same function. FPGAs are fast and affordable and SRAM or
fast SDRAM is also affordable in the quantities needed.
If any of your documentation is related to hardware design as
opposed to user guides and user manuals I would be very grateful if
I could get a look at it.
One specific thing I've been wondering about is how one implements
quickdraw acceleration. Was there an Apple guide to doing this in
some of the developer materials, or was it something which each
company worked out on their own -- deciding which Quickdraw calls
to trap and send to the video card?
Jeff Walther
Jeff,
I designed the hardware upgrades and wrote the drivers for the Color
30HR and the MacroColor30HR. I should have all the original source,
schematics, and the Layout of the original FPGA (icky) for that card
also. I should also (somewhere) have the schematic and stuff for the
grayscale adapter. Let me see what I can do.
Rob
Rob Borsuk
email: rborsuk at
colourfull.com
Colourfull Creations
Web:
http://www.colourfull.com