[Coco] [COCO] Raspberry PI and CoCo Cart

[David Ladd]

Well my idea at this time was to reproduce the Boisy Interface/Becker
port so we could have faster access to the DW4 functions and future
features.

I figured using a parallel format would reduce the need for serial and
using two FIFO chips would make it more simple to attempt to sync info
between the CoCo and the Pi.

Plus having the DW becker driver for OS-9 would make it a lot easier
to get it up and running.

Right now the only draw back I saw was that HDBDOS hadn't been updated
to also support the port on the CoCo3FPGA project.

I am not discounting any ideas anyone has given.  I was just hoping to
get a less CPU intensive and faster data access to the DW4 server.  I
figured this might get that done and also keep it on par with what was
already created thus far.

Plus getting more people excited about creating interfacing projects
is always a good thing :D

On Sat, Oct 6, 2012 at 12:05 PM, camillus Blockx
<camillus.b.58 at gmail.com> wrote:
> These chips are rather expensive, and hard to get. Got me some for a
> digital analyzer, which i still have to assembly. But if you play your
> cards right in designing your idea, then I think it would be possible to
> use the pi to store data (files) from DW into fifo, and then let the coco
> use the fifo as read only ram ( use it actually as a Rom, and execute the
> program from it. And being able to extend the fifo as long you want, you
> have yourself a very fast medium, although it would be volatile. Would be
> faster then read from any other flash or eeprom, I think.) Nice Idea I
> would say.
>
> Hope we get those electronic nerds exited ... LOL
>
> cba
>