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Old 07 February 2007, 19:05   #26
alexh
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Join Date: Jan 2004
Location: Oxford
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D'oh! I take it back, I thought the video DAC's were inside the custom chips.

http://www.ianstedman.co.uk/haynie/c...a/lisaspec.pdf

Ah... I see a gotcha too. You need to also connect to the Alice chip too (or the 23-pin video connector) as not all the signals (Sync) are available on the Lisa!

We need to find a new low cost ASIC scandoubler/FF that has a 24-bit input....

Otherwise you'd have to do the design yourself and use an FPGA with enough block-RAM to hold a field of data (About 700Kbytes) or you'll have to add external DRAM and before you know it you'll have re-invented the FlickerMagic T

Last edited by alexh; 07 February 2007 at 19:16.
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