6845 CRTC, Microvitec VDU/BBC Micro sync waveforms (was Re: CoCo's *are* real...)

From: Philip Pemberton <philpem_at_dsl.pipex.com>
Date: Tue Sep 10 00:15:00 2002

Tony Duell wrote:
>>> Pulse width/frequency of Hsync and Vsync?
>>> Timing between leading edges of Hsync and Vsync?
>>> Timing between Hsync and start of video line?
>> All of those please.
>
> Any others?
Nope.

>> the Cub, so MODE 7 (Teletext emulation) would be the logical choice.
>
> Any reason to believe it won't just plug in? Teletext output is going
> to be normal UK frame rates, as is the Beeb. Have you tried it (and
> have you tried inverting Csync if you get no picture)?
The TTX board doesn't have a sync generator.

Thanks.
-- 
Phil.
philpem_at_dsl.pipex.com
http://www.philpem.dsl.pipex.com/
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Received on Tue Sep 10 2002 - 00:15:00 BST

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