Message-ID:	<01FD6EC775C6D4119CDF0090273F74A4021F5D@emwatent02.meters.com.au>
From:	"da Silva, Joe" <Joe DOT daSilva AT emailmetering DOT com>
To:	"'opendos AT delorie DOT com'" <opendos AT delorie DOT com>
Subject:	RE: Master/slave jumper settings
Date:	Thu, 15 Feb 2001 14:07:38 +1100
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.5.2448.0)
Reply-To:	opendos AT delorie DOT com

Not really. I have an old 60M or 120M IDE drive "lying around
somewhere", that no longer has separate Master-with-slave
and Master-without-slave jumper settings.

It has however occurred to me, that you may not be aware
of the "Cable Select" jumper setting that exists on ATAPI
drives (and possibly ATA drives - haven't checked recently) :

Remember how IBM mutilated the Shugart floppy disk
interface, such that you jumpered all drives as "B:" and
used a mutilated ribbon cable, so that the drive at the end
responded as "A:" and the drive nearest the controller
responded as drive "B:"? Well, the ATA people (IIRC) came
up with a similar scheme, in which you set your ATA/ATAPI
drives to the "CS" jumper setting, and used a mutilated
ribbon cable to assign the Master/Slave configuration of
the two drives (in this case, the "mutilation" involved the
removal of one conductor from the cable, between the
two drive connectors).

Joe.

> -----Original Message-----
> From:	Patrick Moran [SMTP:pmoran22 AT yahoo DOT com]
> Sent:	Thursday, 15 February 2001 12:52
> To:	opendos AT delorie DOT com
> Subject:	Re: Master/slave settings (was prob audio CD on 2nd CD-ROM
> with NWCDEX)
> 
> They must be pretty recent. I am not certain how old the CD drive is
> that I bought for my brother, but seems like it's been within the last
> two years. It is a Creative Labs which also included the PnP AWE 32
> card. He can run all of my SB-16 software on this card as well. His CD
> did not include some of the things I got with my SB-16 for WINDOZE 3.x
> 
> Pat
> 
> 
> ----- Original Message -----
> From: "da Silva, Joe" <Joe DOT daSilva AT emailmetering DOT com>
> To: <opendos AT delorie DOT com>
> Sent: Wednesday, February 14, 2001 5:51 PM
> Subject: RE: Master/slave settings (was prob audio CD on 2nd CD-ROM with
> NWCDEX)
> 
> 
> > You are partly correct.
> >
> > Older drives had three settings :
> > 1. Master drive without slave (aka. single drive).
> > 2. Master drive with slave.
> > 3. Slave drive.
> >
> > Newer drives have combined 1 & 2 by adding a few
> > more "smarts" to their firmware.
> >
> > Joe.
> >
> 
	----- snip -----

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