[Coco] Regarding disk drives

[Mike Pepe]

> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-
> bounces at maltedmedia.com] On Behalf Of John Eric
> Sent: Friday, January 02, 2009 11:04 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Regarding disk drives
> 
> okay, thanks. I was thinking that the twist in the ibm cable meant
that
> both drives had to be set as drive 1 and the twist in the cable
allowed
> them to be accessed as 0 (a) and 1 (b). I guess I would be better
> served simply to make new cables from scratch. Thanks -Jeric
> 

Yes and no.

The twist is wrong for a CoCo controller. IBM uses two distinct motor
enable signals, which is why the twist covers so many conductors.

If you twist the 3 conductors that are D0, D1, and the ground between
them then setting the two drives to DS1 should work as expected.