[Coco] Harddrive Specialists floppy controller

[Arthur Flexser]

I used one of those HDS controllers for years, with a rectangular hole I
cut in the plastic cover to make enough room to piggyback the ROM (EPROM)
on top of a SmartWatch.

Art

On Sat, Aug 12, 2017 at 2:32 PM, Kip Koon <computerdoc at sc.rr.com> wrote:

> Hi Art,
> Thank you for that information.  I have the Harddrive Specialist Floppy
> Controller also.  Mine is working great with the HDB-DOS DW3 Coco 3 rom in
> it.  I have squirrelled this vital piece of information about this
> controller away for later use as well.  I appreciate your efforts over the
> years.  Thank you very much.
>
>
> Kip Koon
> computerdoc at sc.rr.com
> http://www.cocopedia.com/wiki/index.php/User:Computerdoc
>
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Arthur
> Flexser
> Sent: Saturday, August 12, 2017 3:41 AM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Harddrive Specialists floppy controller
>
> Here's an exchange on the list about that from way back in 2003 that I
> filed away:
>
> ------------------------------------------------------------
> ------------------------------
>
> Here you go, Mark:
>
> The ABC jumper selects between ROM sockets A (24 pin) and B (28
> pin)--AB=socket A; BC=socket B.
>
> The other 2 jumpers affect the 28-pin socket B, which may be set to accept
> either a 28-pin ROM or a 24-pin one (by leaving pins 1, 2, 27, and 28 with
> nothing plugged into them).  The DEFGH jumper handles that:  Connect EF and
> GH for 28 pin operation, DE and FG for 24.  Under 28-pin operation, IJK
> selects ROM capacity: IJ for a 2764, JK for a 27128.
>
> Art
>
>
> On Sat, 22 Nov 2003, Mark Marlette wrote:
>
> >
> >
> > Does someone have the jumper settings for the HDS floppy controller?
> > The one I have has the following jumpers in groups.
> >
> > A,B,C
> >
> > D,E,F,G,H
> >
> > I,J,K
> >
> > Any help would be appreciated.
> >
> > Thanks,
> >
> > Mark
> > Cloud-9
> >
>
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