[Coco] MPI and NitrOS-9

Robert Gault robert.gault at att.net
Fri Oct 21 10:33:52 EDT 2016


Bill wrote:
> O.K., but here are the order I want my drives in:
>
> #0 - 3.5", #1 - 3.5", #2 - 5.25", #3 - 5.25"
>
> I was always under the impression that a twist was needed to make the 3.5" act as 0 and 1.
>
>   - OR -
>
> What about a TWO drive combo with a 3.5" and a 5.25"? That would be quite sufficient for copying from one media to the other. I've triea many different cable configurations, and nothing seems to work. (The 5.25" drive does NOT have a selector to choose between 0 and 1, and I don't see a terminating resistor.)
>
>
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Brett Gordon
> Sent: Thursday, October 20, 2016 10:33 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] MPI and NitrOS-9
>
> Err.. no twists... just one cable with four taps.
>
>

Bill,

The 5.25" drives don't need twists. The 3.5" drives may depending on which 
numbers you want to assign to them.
A single 3.5" drive will act as single sided drives 1 and 3 without a twist in 
the cable. I will also act as a double sided drive with NitrOS-9 as drive #1.

If you insist on having four physical drives, you will not be able to use them 
as double sided drives on the same controller. You should be able to have #0 - 
5.25", #1 - 3.5", #2 - 5.25", #3 - 3.5" without any cable twists as single sided 
drives.

Robert



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