[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.