Doepfer

Forgot - no attachments in this forum! basically The thing I attached was a transistor circuit (2N5088) and some resistors and a LED to drive the output jack. It should isolate the processor fine. I will attach it to the expansion header so no mods to the board itself. That is why I asked about what else is on that header. Might as well bring out whatever I can since I will be making a panel for it.
-James

On Feb 4, 2013, at 10:21 AM, James Husted <james.husted@mac.com> wrote:

> Thank You Dieter! I  was sure that something like this was available. I will probably make something like this to attach to it:
> 
> 
> 
> Nice that it is on an expansion connector too. What else shows up on that expansion connector?
> -James
> 
> 
> On Feb 4, 2013, at 1:26 AM, yahoo@doepfer.de wrote:
> 
>> 
>>> -----Ursprungliche Nachricht-----
>>> Von: Doepfer_a100@yahoogroups.com
>>> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von James Husted
>>> Gesendet: Samstag, 2. Februar 2013 08:41
>>> An: Doepfer_a100@yahoogroups.com
>>> Betreff: [Doepfer_a100] Can I mod a A-152 to do this?
>>> 
>>> 
>>> I recently got an A-152 and am using it to select the columns of
>>> two of my PGM-4X4 programmers to make sequences that can have
>>> programmable patterns to them. What I would like is to mod the
>>> A-152 so that I can add an output that produces a trigger
>>> whenever the A-152 addresses a new step. This way something like
>>> a sine wave into the A-152 would make the PGM-4X4 work like a
>>> pendulum and would also produce triggers to fire off envelope
>>> generators whenever a new address/column/note happened. Is there
>>> some internal circuit logic that can be added to create a trigger
>>> out like this?
>> 
>> This is also available as an internal "hidden" feature since  about 2005.
>> The RC4 port pin of the microcontroller (pin 6) outputs a short pulse
>> whenever the address changes. The signal is also available at the expansion
>> connector on pin 2. Pay attention that the signal is not buffered and not
>> protected against short or electrostatic charge (it's the "pure" RC4 port
>> signal). The microprocessor will be damaged if a voltage or GND is applied
>> to this pin. You have to add a suitable buffer to protect the processor. Do
>> not simply connect it to a socket !
>> 
>> Best wishes
>> Dieter Doepfer
>> 
>> 
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