Re: Daisychaining 5.25 " Drives

["mdj" <mdj.mdj@gmail.com>]

David Empson wrote:

> > I seem to recall there was a modification made to analog controller
> > board in the Platinum 5.25" drives that allowed them to respond to a ID
> > request while still essentially being 'dumb' devices
>
> I recall no such feature, and none is required.
>
> The only modification I remember hearing about was a capacitor change in
> a DuoDisk to allow it to work on a IIgs without causing problems with
> other drives, or something of that nature.

>From Tony's site: http://www.apple2.org/A2WebRef/A2Reference05.html

Apparently there was a change to the way the later Smartport firmware
scans the bus, such that ROM03 GS's, IIc+, and LC emulation cards
cannot use drives prior to the Platinum 5.25" drive.

Matt