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saint gillis
Joined: Apr 21, 2012
Posts: 60
Location: Brussels
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 Posted: Sun Jun 03, 2012 5:35 pm Post subject:
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| diablojoy wrote: | | It probably could be done but it may possibly mean losing the external reset all. which for me is the most important feature. |
totally agree with you 
Anyway your reset & run step1 sounds like a revolution in diy analog sequencers; I think I ll go this way with a double clock divider (8x8=64  )
Little photo of my 4xsympleseqs in the middle of my Yusynth in progress
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
Audio files: 11
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| Posted: Sun Jun 03, 2012 5:56 pm Post subject:
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| Quote: | | Anyway your reset & run step1 sounds like a revolution in diy analog sequencers; |
And why i will perservere with an efficient single circuit version
for all those other 4017 based sequencers out there
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
Audio files: 11
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| Posted: Sun Jun 03, 2012 7:42 pm Post subject:
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oh by the way you wont need two dividers
just clock both sequential switches from the same one
unless of course you want the ability of your CV outs to be not in sync
to your current steps also truthfully only the sequential switch handling the
sequencer clocking needs to have the delay board in place
the one handling the CV's does not .
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saint gillis
Joined: Apr 21, 2012
Posts: 60
Location: Brussels
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| Posted: Sun Jun 03, 2012 9:49 pm Post subject:
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| diablojoy wrote: | also truthfully only the sequential switch handling the
sequencer clocking needs to have the delay board in place
the one handling the CV's does not |
Alright, thanx Diablojoy! 
I was thinking of 2 clock dividers to send one to another to be able to divide the clock each 64 clock beats as a maximum... |
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emdot_ambient
Joined: Nov 22, 2009
Posts: 667
Location: Frederick, MD
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| Posted: Mon Jun 04, 2012 8:36 am Post subject:
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| diablojoy wrote: | | I dont know of a way to get emdots switch concept working correctly yet for all instances. |
I was thinking the same thing last week. Since the idea we came up with for my scheme was using the Reset of each sequencer as the clock source for the leading seq switch (the one feeding clock signals to all seq), but the Reset Out on these sequencers is also the Reset In (right?)...trying to do a Reset All ends up first resetting the leading seq switch, then propagating resets out to the individual sequencers, which would step the seq switch each time!
I've no idea what would actually happen if you did that. If the Reset All circuit actually does send the signal in this order: Seq Switch, Seq 1, Seq 2, Seq 3, Seq 4...then actually it appears that it should work because Seq Switch would go back to step 1, then with each Seq reset it would cycle through step 2, step 3, step 4, back to step 1 and (theoretically) be ready to pass the clock to Seq 1.
What it would actually do, though, is anybody's guess w/out trying it. I suspect it would freak our or open a hole in the time space continuum and kill us all.
(Of course doing a manual reset on any one of the sequencers would also pass a clock signal back to the leading switch, so....  )
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saint gillis
Joined: Apr 21, 2012
Posts: 60
Location: Brussels
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| Posted: Mon Jun 04, 2012 10:57 am Post subject:
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Have not though about this idea, maybe it should work but the sequencers leds would always all be running so diffucult to know which one is currently playing... |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon Jun 04, 2012 12:07 pm Post subject:
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| diablojoy wrote: | | Quote: | | Anyway your reset & run step1 sounds like a revolution in diy analog sequencers; |
And why i will perservere with an efficient single circuit version
for all those other 4017 based sequencers out there |
are you going to offer a PCB?
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matthias
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Big Boss at fonitronik
Tech Buddy at Random*Source |
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
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| Posted: Mon Jun 04, 2012 10:42 pm Post subject:
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| Quote: | | are you going to offer a PCB? |
Hi Matthias
if i can ever get it working using only 2 chips
i will definitely post a layout at least
I will start a thread once i have something more concrete
if there were enough interest i would offer a pcb certainly
mind you it would be tiny
just as important i think is the schematic for this creature as an addition
to new 4017 sequencers designs someone always seems to be doing another one and there is already usually a couple of 40106 sections unemployed in such designs the addition of a 4013 then is not much, hopefully that is all that would be needed.
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emdot_ambient
Joined: Nov 22, 2009
Posts: 667
Location: Frederick, MD
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| Posted: Tue Jun 05, 2012 9:11 am Post subject:
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| saint gillis wrote: |
Have not though about this idea, maybe it should work but the sequencers leds would always all be running so diffucult to know which one is currently playing... |
Actually I don't think that's the case with the idea I presented and diablojoy helped out on. The clock signal for the Sequencers comes from the outputs of the Seq Switch. So only the Seq associated with the current Seq Switch output would be receiving a clock signal at any one time. The issue becomes, what happens if you Reset All and the reset chain goes Switch-SEQ1-SEQ2-SEQ3-SEQ4 while the clock is running. Will that cause each SEQ to actually play Step 1, or what? You could end up with the whole system kind of askew. Manually resetting any of the SEQs would probably cause the SW to move to the next output as well.
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
Audio files: 11
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| Posted: Tue Jun 05, 2012 5:51 pm Post subject:
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| Quote: | | Manually resetting any of the SEQs would probably cause the SW to move to the next output as well. |
yes it will and that is what makes external restting very difficult to implement correctly in this scheme
you would need to find a way of separating internally generated resets required to clock the switch and external ones to reset parts of the system or the system as a whole the interesting part comes from what happens if both occur at the same or very near the same time which may happen quite often , I think it would be similar to having 2 reset switches thrown on a single sympleseq - slightly chaotic
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
Audio files: 11
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| Posted: Sun Jun 10, 2012 2:06 am Post subject:
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ok did finally manage to get a simple single reset circuit working
will start a new topic for it though as it is not solely relevant to sympleseq.
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In an infinite universe one might very well
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