--- Dieter Doepfer < hardware@... > wrote:

> From: "Dieter Doepfer" < hardware@... >
> To: "ringmod45" < ringmod45@... >
> CC: "Bakis Sirros" < synth_freak_2000@... >
> Subject: AW: a152 suggestions
> Date: Thu, 8 Jan 2004 19:10:16 +0100
>
> > -----Urspr�ngliche Nachricht-----
> > Von: ringmod45 [mailto: ringmod45@... ]
> > Gesendet: Donnerstag, 8. Januar 2004 03:39
> > An: hardware@...
> > Betreff: a152 suggestions
> > > >
> > > > For some other module we already have started
> the
> > > > development and built the
> > > > first prototypes. But it may be necessary to
> add
> > > > some major modifications:
> > > > A-101-1 Vactrol Steiner Filter, A-101-2
> Lowpass
> > > > Gate, A-152 Voltage
> > > > Addressed Switch, A-164 Manual Gate.
> >
> > Hi Mr. Doepfer,
> >
> > Best wishes and a happy new year to you and
> everyone at the shop.
>
> Thank you RM. All the best in 2004 for you too -
> whoever you are.
>
> > While the a152 is still in the design stages, how
> you considered
> > adding the trig outputs for every stage. This
> could be accomplished
> > adding the A161 trig out board to the A152 just
> the A160/A161 module.
>
> Sorry - but it's not possible simply to add the
> A-161 board as the A-152
> uses an analog voltage input that allows to address
> one of the steps by the
> corresponding voltage. In contrast to that A-160 and
> A-161 use clock signals
> that cause an advantage to the next step. But still
> I suppose it would we
> possible to add gate outputs to the A-152 with the
> gate output of the
> currently addressed step set to high (all other
> remain low). We simply would
> have to add outputs that work like the LED displays
> that show the addressed
> step. Of course this would increase the price for
> the A-152 a bit.
>
> > Also another idc connector and switch to combine 2
> A152's to have 8 or 16
> stages.
>
> For the current design this is not possible. The
> microcontroller with the
> integrated ADC has only 6 pins left (+ 2 for
> supply). One pin is the ADC
> input, 3 are used for addressing the 8 stages, one
> is the clock and the last
> one the reset input. So we have no pins left for
> additional functions in the
> current design. To have 16 voltage addressed stages
> available the complete
> circuit has to be expanded to 16 steps as in this
> case the controlling
> voltage (e.g. 0...5V) has be measured and processed
> to address 16 steps
> instead of 8 steps. The recommended expansion is
> only possible for a clock
> driven device but not for a voltage controlled one.
> The voltage control is
> the main feature of the A-152. The additional clock
> and reset inputs are an
> extra if the control voltage is fixed. As soon as
> the control voltage
> changes it overrides the setting coming from the
> clock unit (A-107 users
> will know what I mean as in the A-107 voltage
> addressed filter steps and
> clocked filter sequences overlap in the same way).
>
> > I am sure if you do a poll for these features,
> people will vote in
> > favour of them. I have included a photoshop
> mock-up to let see the
> > layout I had in mind, it seems to work.here is the
> url to yahoo
> > doepfer
> >
> >
>

http://us.f1.yahoofs.com/groups/g_3183706/__hr_A152+seperate+pulse+outs.gif

> bc0tL__Are_yI3vj
>
> Sorry. This link did not work.
>
> > Here is a link of the same trig out feature from
> Cyndustries.
> >
> >
>

http://www.scampers.com/cyndustries/modules_4chanaSw.cfm

>
> But this is not a voltage addressed device but only
> clock/reset driven as
> far as I can see (like the A-151, resp. A-160/A-161
> or the A-155 using the 8
> external inputs of the lower row)
>
> > Here is another crazy idea, if you have a pot and
> vc of the stage
> > selection, if you mult a couple of the pulse outs
> to the reset in ,
> > you should be able to have mini switch sequences,
> theoretically like
> > the Buchla 246 sequencer.
>
> Sorry - don't understand this. Multiple pulses to
> the reset causes to go
> step 1 (where it already remains after the first
> reset pulse). Maybe you
> mixed up clock and reset
>
> > Obviously you would need a one cell memory to
> remember the input
> > stage, so it can cycle between them, until a new
> stage is selected
> > either by the address pot or the voltage control
> input. Just an idea
> > and a crazy one at that,but hopefully possible.
>
> I'm not sure if I understand everything but the
> A-152 will work a bit like
> that, i.e. clock and reset are working as long as
> the CV does not change. In
> this state the CV defines the "reset address", i.e.
> a reset signal resets to
> the position defined by the "fixed" CV (example: if
> CV=0 a reset signal
> addresses step 1, CV=2V for example step 3 and so
> on). Without a reset
> signal the full cycle (1-2-3-4-5-6-7-8-1-2-3-4...)
> is processed but it would
> be possible too that the CV defined step is even the
> first step in the cycle
> without using the reset signal (e.g.
> 3-4-5-6-7-8-3-4-5-6-... with CV=2V).
> A bit complicated and maybe confusing, I know. But -
> hey - this "research"
> :-)
>
> Dieter Doepfer
>
> I hope you agree that I send a copy of this message
> to the group via Bakis.
>
>

=====
Bakis Siros
Parallel Worlds / Polariton
Athens-Greece
1 group owner
http://www.rubber.gr
http://www.ward12.com

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