Date   : Mon, 12 May 1997 23:54:28 +1200
From   : Bill Keesing <bill@...>
Subject: Re: The beloved Beeb and disc drives

At 12:47 12-05-97 +0200, Mark Usher wrote:
>Hi,
>
>So a quite eventful weekend at my place.  I decided to have a look inside
>the 5 1/4, low and behold, I can stick on a Y adapter and put another disc
>drive on.  Oooh yes please.
>
>So, I wired this up
>
>BBC B------------3 1/2 -------- 5 1/4
> (8271)             DS1           DS0
>
>The bit about not using the twist in a PC floppy cable I managed to suss
>out :-)
>
>So, when I 
>*DR.0
>*CAT
>everything as it should be
>
>720K DD floppy in 3 1/2 drive
>*FORMAT 1 80
>light comes on, 
>disc error
>>
>
>So, the question is, is the problem mit the 8271 controller ? and I must
>upgrade to a 1770 / 1772, or should this configuration work with an 8271 ?
>If so should I be using a specific DFS ?
>
>I'd appreciate your thoughts / experiences on this matter.

I had a similar setup with my Model B and 5.25" and 3.5" floppies. It
worked fine. Make sure that the jumper is set to DS1 on the 3.5. Also try
swapping the drive assignments to check if it is the drive itself that is
generating the error, i.e. set the 3.5 to be DS0 and the 5.25 to be DS1.