Date   : Tue, 07 Mar 2006 16:20:35 +0100
From   : John Kortink <kortink@...>
Subject: Re: GoMMC question

On Tue, 7 Mar 2006 14:03:54 -0000, David Hunt wrote:

>I have a Master with a 512Mbyte ADFS disc image on a 2Gbyte MMC card in the
>GoMMC board v.0.70
>
>If I do a *FREE, I get 528Mbytes free, but when I try to write to the GoMMC
>I get an error "Outside GoMMC disc". Is there a way to write as well as read
>to the GoMMC on the Beeb?

Of course.

'Outside GoMMC disc' only means that somehow the current
operation (read or write) has ended up reading/writing
outside the disc's space. This can't really happen in
normal practice with normal disc images, since it's
ADFS that determines where the disc is accessed.

I don't have a 2GB card at hand, but I can remember testing
a 512 MB ADFS harddisc image on a 1GB card and it was fine
read/write. The problem may have something to do with the
fact that your card is 2GB but I don't think so. You should
also have the CPLD upgraded to rule out possible slight
instabilities from causing the problem (although it would
be unlikely to cause this one).


John Kortink

-- 

Email    : kortink@...         
Homepage : http://www.inter.nl.net/users/J.Kortink

GoMMC, the ultimate BBC B/B+/Master storage system :
http://web.inter.nl.net/users/J.Kortink/home/hardware/gommc