[Coco] Mystery "FDC (EAGLE FORMAT)" Schematic on MaltedMedia FTP

[Darren A]

On Sun, Feb 8, 2015 at 12:50 PM, Chad H wrote:

> I'm perusing this interesting schematic thinking at first it was a clone or
> some other form of a floppy controller and then realized the designer had
> also included interfacing for 40-pin IDE in addition to the 34-PIN Floppy!!
>
> Who is the designer of this?  It appears the WD1773 controller was replaced
> with a Intel 8207AA.  Would this mean that standard HDBDOS ROM's or

NitrOS9 stuff would be incompatible?
>


That may be the CoCo FD/HD controller designed by Chuck Youse in 2008. He
sent me one of the prototypes so that I could make a version of Disk Basic
that would work with it. The 8207AA controller is nothing like the Western
Digital chips used in other CoCo floppy controllers.

After Chuck got involved in a flame war on this list he decided to abandon
all his CoCo projects and leave the community.

I have posted a picture of the prototype here:
<https://www.flickr.com/photos/104370114@N04/16290106139>

- Darren