Date   : Sat, 27 Dec 2008 19:18:14 +0000
From   : cris@... (Crispin Boylan)
Subject: Disc Fault FD

oops I should mention that this is Acorn DFS 0.90 on an unexpanded BBC 
Model B (Iss7) with an 8271, OS 1.2

Crispin Boylan wrote:
> Hi All,
>
> I'm getting a weird error message when trying to use my floppy drive on 
> my trusty Model B.  When I enter any disc commands I get "Disc Fault FD 
> at FD/00" instantly returned (no attempt visible attempt to access the 
> drive or wait for a response).  Having searched through the Acorn DFS 
> manuals and online I cant see that this code even exists!  FC and FE 
> seem to, but not FD!  Even a scan of the 8271 datasheet I can't see how 
> this result code would be formed. 
>
> I did get the drives working briefly but now cannot at all.  Both drives 
> are the same.  In fact the error doesn't change even without drives 
> connected!
>
> Anyone got any ideas?
>
> thanks
> cris.
>
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