[Coco] Artifacting on LCD?

[Mike Pepe]

Oh, and let's not forget the 68486/68487 SAM/VDG replacements- that
would have been a fixed VDG as well.

Too bad I lost the datasheets for those, I would be curious to remember
how they were structured and what features they would have given us if
they had actually been produced.

Maybe John knows :)

> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-
> bounces at maltedmedia.com] On Behalf Of Mike Pepe
> Sent: Thursday, April 09, 2009 7:34 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Artifacting on LCD?
> 
> Well, yes, there is a fixed VDG. It's called a GIME. :)
> 
> All 6847 models released have this "feature" where they power up with
> either a rising or falling clock edge.
> 
> I have it on my "to do" list to rig up a little circuit that would let
> you invert the VDG clock on demand and see if that would let you flip
> the red/blue relationship on demand rather than pounding on the reset
> button and praying. And yes, such a thing is really trivial.
> 
> > -----Original Message-----
> > From: coco-bounces at maltedmedia.com [mailto:coco-
> > bounces at maltedmedia.com] On Behalf Of Allen Huffman
> > Sent: Thursday, April 09, 2009 6:19 PM
> > To: CoCoList for Color Computer Enthusiasts
> > Subject: Re: [Coco] Artifacting on LCD?
> >
> > On Apr 8, 2009, at 8:11 PM, LinuxRules wrote:
> > > I don't recall if any of those ever went into production. (Several
> > > "patch" mask sets were made
> > > early on, before and during early production.....) It was kind of
> > > strange to watch, though......
> >
> > Wow, there was a fixed VDG? That's very cool, John! Yeah, we got
used
> > to hitting reset over and over until a screen went red or blue, per
> > game instructions at the start ;-)
> >
> > 		-- Allen
> >
> >
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> 
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