[Coco] rgb2vga rolling video

[CoCo Demus]

don't forget the dip switches...

On Mon, Jan 6, 2020 at 8:22 AM Ed Snider <zippster278 at gmail.com> wrote:

> Also check connections on the output side for vsync if all looks good on
> input
> to the FPGA board header.
>
> - Ed
>
> > On Jan 6, 2020, at 10:18 AM, Ed Snider <zippster278 at gmail.com> wrote:
> >
> > Sounds like your vertical sync isn't getting through.  Check your CoCo's
> vsync output,
> > ribbon cable, connections, etc to ensure vsync is getting to the RGB2VGA
> board
> > and dev board header.
> >
> > - Ed
> >
> >> On Jan 6, 2020, at 10:04 AM, Matthew Stock <stock at bexkat.com> wrote:
> >>
> >> [ trying again with the proper email address ]
> >>
> >> Hello all,
> >>
> >> The holidays have given me a little time to tinker with the CoCo, and I
> >> recently took the opportunity to order the RGB2VGA board that's up on
> OSH
> >> Park.  Soldered it up today and it looks great... except that the
> display
> >> is rolling vertically.  I've tried a couple of different monitors with
> the
> >> same result.  The test block screen looks solid and good, and so I
> suspect
> >> it's an issue with the CoCo 3 I have it attached to.  Anyone have any
> >> suggestions on how to fix it?  I was going to start diving into the VHDL
> >> and doing some debugging, but since I'm more of a Verilog person I
> figured
> >> I'd ask here and see if this issue has been seen and resolved before.  I
> >> looked in my email history and nothing jumped out.
> >>
> >> Thanks for any assistance!
> >>
> >> Matt
> >>
> >
>
>
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