It's been designed so the 8 analog inputs can be multiplexed (with no
external inputs) to read 16 potentiometers. My intentions are to
write a sequencer for it, somewhat emulating the ARP sequencer. You
should be able to do 16x1, 8x2, sequential or random. The exact
features are left to be designed but with the display I can do a
pretty decent interface. There really aren't enough inputs / controls
to do a decent internal clock so I am thinking of using the edge-
detect interrupts on the Aux input for a clock. That will give really
low latency. The Start and Stop switches can be used to go into a
setup mode and select various parameters such as mode, skip, etc.
Specific outputs would be trigger and gate.
Another interesting possibility is to use the CVS for the sequencer
and use a PSIM for the clock generation. The PSIM could generate the
clock with a CV and FM input. I can write a serial (e.g. MIDI)
protocol
to sync the two if necessary. However, if I can't think of any extra
features to put in it, one might as well just use an LFO as the clock.
Dave
--- In
ComputerVoltageSources@yahoogroups.com, "Andrew Scheidler"
<xpandrew@...> wrote:
>
> I am hoping to build the step sequencer of my dreams, using the "CVS
> thing" as the brain.
>
> I've done this in a limited way with a Metalbox/CGS Sequential
Switch
> and a PSIM-1. For example, the DIN SYNC clock goes into the PSIM,
which
> then uses the voltage at IN4 to determine the gate time (in 24ppq
ticks)
> to feed the sequencer via OUT4.
>
> But to really do what I want, I need to address the individual
steps.
> This would allow the Atom24 to point at specific steps instead of
always
> going sequentially. So things like "random" sequence and "skip"
would
> be possible. (right?)
>
> (this is multiplexing, correct? any good resources on this on the
web?)
>
> I'd be interested in hearing anyone else's thoughts...
>
> Andrew
>
> ps - Happy Birthday Grant !
>