[H-GEN] Slave H/D

[Russell Stuart]

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On Wed, 2003-05-07 at 14:36, David Seikel wrote:
> Keeping in mind that HD manufacturers like to bend standards, as was
> mentioned before, if you configure a HD to use cable select, but you use an
> ordinary cable, things won't run real well.  Conversley, you probably need
> to set a HD to cable select if you are using a cable select cable.

IDE cables use pin 28 for cable select.  For the master drive it is
grounded, for the slave it floats.  Ordinary IDE cables always have pin
28 grouneded (ie connected to the controller) for both connectors. 
Ergo, if you put a drive configured for cable select on an ordinary
cable, it will be a master.

This also means when the drive is connected to a normal IDE cable the
master and cable select pins do the same thing.  So some drive
manufacturers save the 0.0001c associated with the extra jumper, and
label the combined jumper MS/CS, M/C or MC.  That is about as far as I
have seen this standard bent.

It is easy enough to make your own cable select IDE cable.  Just take a
normal IDE cable and sever the wire for pin 28.  If it is a dual drive
cable you should sever it between the two drive connectors - which is
obvious when you think about it.

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