Date   : Sat, 06 Aug 2005 11:22:46 +0200 (BST)
From   : Johan Heuseveldt <johan@...>
Subject: Re: Acorn Econet Bridge

Hi Mike,

On Fri 05 Aug, Mike Tomlinson wrote:
> 
> In article <1123194089.29315.39.camel@...>, Jules 
> 
> > Ok, just did a quick check with a meter on the board...
> >
> > &C000 jumper block 1
> > &C800 ADLC 1
> > &D000 jumper block 2
> > &D800 ADLC 2
> 
> Just a guess - perhaps &C000 and &D000 are the locations read to find
> the station number of the bridge on each net, which are set by the
> jumpers?

Why guessing, Jules says the same thing! :-)

Actually, I felt quite stupid. For several days I was doing investigations,
looking into the disassembly, and somehow the obvious of the two jumper
blocks for the netnumbers didn't come forward from the far far back of my
grey cells. Grrr...

Somehow the process of thinking is blocked, and after posting a question
about the topic to the list, that process gets restarted, just to realise
how stupid the question must be, and how I could forget. :-(((


In the mean time there are again some days passed! :-)

The board is examined and schematics are almost done; just a few loose
ends to take care of. Of course the real problem is now to get it all
on a decent drawing, and after that in a format that is of some use to
you all: I have the feeling that most of you are not on RISC OS (anymore?).

Now knowing some things about the hardware, makes quite a few things
clear about the disassembly, that's for sure!


greetings,
Johan

-- 
Johan Heuseveldt <johan@...              >
  aka  waarland

  The best place is a Riscy place
 
Democracy is the recurrent suspicion that more than half of
the people are right more than half of the time. - E. B. White