Date   : Fri, 10 Nov 2006 12:40:32 +0000
From   : hideki.adam@... (adam colley)
Subject: Solidisk 1770 BBC B upgrade (first edition) Drive 1

Hihi

Finally got the solidisk upgrade sort of working, however the machine
it's now in previously had a (defunct) Opus DDOS upgrade fitted, after
trying 3 different Solidisk ROMs got one that sort of works in that
the first drive works fine, I can format double density disks etc.

Unfortunately when I try to access the second drive, both lights come
on and disk fault 18 appears... this is especially troublesome as the
second drive is a 3.5" used for transferring files to and from the PC
with Omniflop...

I notice as part of the Opus upgrade two red devices were fitted to
IC86 and IC87 with just a wire link in each connecting two pins, I'm
wondering if this is correct...

The Solidisk upgrade came with an EPROM programmer I was given and
without roms, instructions or other parts so any clues as to what
might be wrong would be appreciated.

Incidentally PAGE is at &1800 instead of &1900 as you might expect with this DFS

Now to find an ADFS that'll work with it -.-

(Note that this is the original non-acorn compliant upgrade)


-- 
Hideki.Adam