[Coco] No pixel wasted

[Luis Antoniosi (CoCoDemus)]

No, composite video is another story. Color burst, etc.

But it could use the 6847 VDG component video  (Y, Cr, Cb) with some
modifications.

Luis Felipe Antoniosi



On Thu, Sep 18, 2014 at 12:22 PM, S Klammer <sklammer at gmail.com> wrote:

> Yet, based on his "fantastic" progress, having it provide the same
> stability for the other modes in the same hardware is definitely
> beneficial.
>
> I presume this utilizes the CC3 RGB port... could this design (or a minor
> addition) also support composite video?
>
> sk
> On Sep 18, 2014 12:13 PM, "Steven Hirsch" <snhirsch at gmail.com> wrote:
>
> > On Wed, 17 Sep 2014, Luis Antoniosi (CoCoDemus) wrote:
> >
> >  I reduced the speed from 229Mhz to 114Mhz, the SDRAM works better now:
> >>
> >> http://imgur.com/MY0ExuW
> >>
> >> It also fixed the artifact in coco1/2 graphics screen.
> >>
> >> But for coco3 games like roboco, thexder I still get some minor
> flickering
> >> in some areas. Like it generates those video modes with a slightly
> >> different pixel clock ? I have a 1986 GIME only.
> >>
> >> All the other resolutions are pixel perfect: 32, 40, 80 columns, pmode
> 1,
> >> 2, 3 and 4.
> >>
> >
> > I am utterly disinterested in gaming, but would really like a stable
> > 80-col solution.  Let us know when the design is finalized?
> >
> > Steve
> >
> >
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