Date   : Mon, 30 Jul 2001 22:31:08 -0700
From   : "Chris + Tina Saddler" <csaddler@...>
Subject: Re: BBC Model B +3.5" FDD + 8271 + DFS1.21

----- Original Message -----
From: "Chris + Tina Saddler" <csaddler@...>
To: <bbc-micro@...>
Sent: Monday, July 30, 2001 9:04 PM
Subject: BBC Model B +3.5" FDD + 8271 + DFS1.21


> I'm trying upgrade my BBC model B with a 3.5" floppy disc drive (1.44 MB
FDD
> from a PC). The BBC has an 8271 interface and DFS 1.21 ROM installed (I
> uderstand that the DFS 1.21 is a patched version of 1.20 - i.e. timings
> adjusted to allow the use of a 3.5" FDD with the 8271 disc interface).
>
> I'm using "2DD" type discs (with an unformatted capacity of 1.0MB). I
don't
> have the Acorn DFS utility disc that contains the disc format commands and
> so I have been using my Acorn A3010 to format the disc - using the ADFS
640K
> (L) format which I believe is compatible with the BBC disc format.
>
> When I try any of the BBC disc commands (*CAT, *SAVE etc) the disc light
> illuminates, there is some disc noise (head movement) and then the
following
> error message:
>
> "Disc fault 18 at 00/00"
>
> I have the drive connected to the BBC using the "untwisted" portion of a
> 34-way ribbon cable and the FDD is jumpered to be DS0.
>
> What am I doing wrong? Any help is appreciated.
>
> Chris.
>

Problem solved! Its working.....

Of course the ADFS 640K format is incompatible with the 8271 DFS. I had to
use Richard A. Averill's ArcDFS (running on the A3010) to format the disc
correctly for the BBC (80 track, double sided, 400kb formatted capacity).

Sorry to trouble you all!

Chris.