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Re: looking for an S-100 expert builder to build and test prototype board
I am a little confused when looking at the schematics and parts list.
You are showing the 4164 as an 18 pin device but everywhere I look it
is a 16 pin device - am I missing something? Also can a v9958 be
substituted as well?
On Dec 14, 5:50 am, lynchaj <lyn...@yahoo.com> wrote:
> There is an S-100 board project that is ready for prototype build and
> test but the project is "stuck in the mud" due to availability issues
> (aka "real life") of the original design team.
> Is there anyone who would like to take on a build and test of a rather
> ambitious S-100 board? The project I am referring to is the S-100 VDP
> which is a video board based on the V9938/V9958 video display
> This board has potential for greatly improved color graphics, 80
> column text, etc using the latest of the VDPs which descended from the
> original TMS9918.
> I have a design schematic and PCB layout which is ready for prototype
> build and test. However it will stay on the "black board" until some
> builder can make it a reality.
> The design could even be extended to include audio (AY-3-8910 or
> similar) once we get the video section working. This would provide a
> measure of MSX compatibility for the S-100 bus systems. There is
> quite a bit of stuff we can export from the N8VEM N8 "all in one"
> project to this board to accelerate an improved design.
> This board is deceptively simple looking but is not for the feint of
> heart. Video boards never are...
> Anyone interested? Thanks and have a nice day!
> Andrew Lynch