Help from Gurus on modes and timing and frame buffers needed!
Kevin B. Hendricks
khendricks at ivey.uwo.ca
Sat Nov 10 00:23:47 EST 2001
Hi Tony and Roman,
Thanks for your help with this! The drawing and formulas helped me
understand things. When I add to that nomenclature the nomenclature used
by the specific graphic card docs, things can get very confusing. It
seems the VCLK and the DOT_CLOCK, and the PIXEL_CLOCK are all related but
they are ofter scaled differently (off by a factor of 10) and given as
inverses or one or the other. Very confusing!
Anyway One last question:
How are the Sync Flags determined? I assume they either tell you if the
sync is an upward pulse or a downward pulse, or which edge to trigger on
or something like that.
I see in the EDID block that SYNC_T = 1 but I have no idea how
Flags "-HSync" "-VSync"
are determined from that (or anything else).
Again any help would be greatly appreciated here.
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