[Coco] CoCo Disk Drives

[Rick Thornquist]

Al -

The controller says 26-3029 on it, but the drive says 26-3029 on it as well.

It appears I do have a pulled pin cable.  This is new to me - I haven't
experienced this pulled pin cable thing before!  The middle connector has
12, 14 and 32 pulled and it's drive 0.  The end connector has 10, 14, and
32 pulled and is drive 1.

I haven't gone into the drives yet, I guess that's the next step.  I'll
check for termination resistors.  Do the drive selects matter if I have a
pulled pin cable?

Glad to know that the drives will work with the CoCo.

Thanks again for the help!

- Rick

On Fri, Feb 27, 2015 at 9:20 AM, Al Hartman <alhartman6 at optonline.net>
wrote:

> 26-3029 is the Catalog number for the controller, not the drive. But, if
> the drive came with the controller it should be drive 0 and at the end of
> the cable. A 26-1164 is ALSO a drive zero, but can be other drives based on
> what connector it's plugged into.
>
> Are you sure you have a pulled pin cable?
>
> Or have you gone into the drives and manually set the drive selects?
>
> Also, check that only ONE drive, the one at the end of the cable -- has a
> termination resistor. Two of them on the cable could be the cause of some
> strange problems and errors.
>
> And, yes -- you can use drives meant for the TRS-80 I/III/4 with the Coco,
> they work fine.
>
> -[ Al ]-
>
> -----Original Message----- From: Rick Thornquist
>
>
> Since you guys were so great answering my previous question, I have another
> for you.
>
> When I acquired my CoCo 3, I got a 26-3029 controller and two disk drives,
> a 26-3029 and a 26-1164.  I didn't get any manuals, so I just connected
> them up in what looked to be the right way.  I have the 26-3029 connected
> to the middle of the floppy cable (as drive 0), and the 26-1164 connected
> to the end of the cable (as drive 1).  The setup does work for the most
> part, but there is some flakiness, mainly with the 26-1164.
>
> My question: Is there some configuration, like with drive select dip
> switches or terminators, that I'm supposed to do?  Also, my Internet
> digging suggests that the 26-1164 is a TRS-80 disk drive - is it also
> supposed to work with the CoCo?  .
>
> Thanks!
>
> - Rick
>
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