First of all i cannot say how glad I am after these years to finally get
some real answers to how the original designs could be improoved and that
they have given it some thought atleast.

But the bottom line is that the issue will not end until the day Doepfer
actually presents a pricetag and a possible releasedate for an upgrade. I am
sure they know that. As for any inaccurracies regarding possible ways to
upgrade and costs of developement I can admit some degree of ingorance here,
but still I have a hard time seeing what it would take serious upgrades to
split notes and relatively simple maths like that. Still I would rather pay
for a significant upgrade that janking around with a obviously pretty used
up memory/cpu.

I could could consider joining a regelwerk/shaltwerk forum if I did indeed
had anything to discuss about it as how to use it and such. But since I
don't find it useful and that the attention is given to the A100 I don't see
much point. We all know this storm will blow from time to time... and I
expect it is fading now.

/Andreas

----- Original Message -----
From: "bakis Sirros" < synth_freak_2000@... >
To: "Doepfer_a100 group" < doepfer_a100@yahoogroups.com >
Sent: Tuesday, February 26, 2002 11:48 AM
Subject: 1 Fwd: AW: let's end the shaltwerk
discussion,O.K. (doepfer's answer!!!)


> hi list,
> here is the answer from dieter:
>
>
> --- Dieter Doepfer < hardware@... > wrote:
> > From: "Dieter Doepfer" < hardware@... >
> > To: "bakis Sirros" < synth_freak_2000@... >
> > CC: "Chris Assall" < software@... >
> > Subject: AW: let's end the shaltwerk
> > discussion,O.K.
> > Date: Tue, 26 Feb 2002 11:09:16 +0100
> >
> >
> > "Dear Bakis,
> >
> > I have read hastily the discussion about the
> > Schaltwerk update. I would have
> > answered in detail but at the moment the preparation
> > of the music fair is much
> > more important.
> >
> > There are some incorrect claims in these messages
> > and the writers do not know
> > some of the technical details that prevented us from
> > an hardware/software
> > update. The processor used in the
> > Schaltwerk/Regelwerk is a SAB80C535 and has
> > 64kB memory for program and 64kB memory for data
> > (the Schaltwerk and Regelwerk
> > development started in 1994/95 and at this time the
> > 80C535 was a
> > state-of-the-art microcontroller). One cannot simply
> > add more memory (of course
> > we know that memory is cheap now) as the processor
> > is not able to handle the
> > bigger memory. Bank switching of memory id not
> > possible as the emulators
> > (required for program design) do not support bank
> > switching. Changing to another
> > processor means that we have to buy all the
> > development tools (assembler,
> > C-compiler, linker and especiall the emulator) for
> > the new processor. This is
> > an investment in the range of 25000 Euro ! We have
> > to think carefully about such
> > an investment as it has to pay.
> >
> > Anyway - we think about the general use of a new and
> > more powerful processor.
> > But this consideration has to take into
> > consideration not only the
> > Schaltwerk/Regelwerk but other devices too as the
> > purchase price for the
> > development tools is far too much only for a
> > Schaltwerk/Regelwerk update. In
> > spring 2002 we will decide which new processor will
> > be used. We have
> > short-listed some Fujitsu, Mitsubishi or Toshiba
> > 16-Bit microcontrollers with
> > flash memory. And possibly we will develop a
> > completely new basic board for
> > Schaltwerk and Regelwerk as soon as we (i.e.
> > Christian Assall in the first
> > place) have sufficient experience with this new
> > processor. I cannot guarantee
> > this but you can be sure that we do our best to keep
> > our customers satisfied.
> > All attempts to "tune" the 80C535 processor failed
> > (e.g. more memory, higher
> > speed). The only solution is to make a "cut" and
> > change to a completely new
> > processor. But this means that nearly the complete
> > (!!!) software has to be
> > written new as the processor languages are not
> > compatible. I'm sure that the
> > complaining customer has no idea about the efforts
> > that are necessary to do
> > this. Believe me: if there would be an easy way to
> > offer an update for
> > Schaltwerk or Regelwerk we would have done this !
> >
> > In addition I agree that the forum was establihed fo
> > A-100 and not for
> > Schaltwerk/Regelwerk (these were developed before
> > the A-100 so that it is
> > nonsense to call them A-100 extensions).
> >
> > For me it is completely confusing if there are polls
> > and suggestions for new
> > modules on one hand and the request on the other
> > hand to stop the development of
> > new modules but to make an Schaltwerk update instead
> > of it.
> >
> > And concerning the blue LEDs: this was not our idea
> > ! We offer the devices with
> > blue LEDs not because we think this is a technical
> > innovation but because many
> > customers asked for (like you). I think the
> > complaining customer really does not
> > know the score. It takes definitely no development
> > time to change red LEDs into
> > blue ones. If the "development time" required for
> > the blue LEDs would be the
> > same as for a Schaltwerk/Regelwerk update of course
> > we would have preferred the
> > update!
> >
> > Please don't be annoyed if I cannot answer every
> > message in detail but we are in
> > the "hot phase" for the Frankfurt fair (the complete
> > stand and all devices,
> > prospectus, flyers, signs, lab coats, lightning,
> > mixers, computers, main voltage
> > distributors, amplifiers, loudspeakers, tables,
> > tools, measuring equipment and
> > and and ... have to be prepared)."
> >
> > Best wishes
> > Dieter Doepfer
> > Doepfer Musikelektronik GmbH
> > http://www.doepfer.de
> > email: hardware@...
>
>
>
> O.K!!!NOW I HOPE THIS MATTER WILL COME TO AN END...
> synthfreak
>
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> =====
> synthfreak(parallel worlds)
> athens-greece
> 1 group owner-moderator
>
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