Starting/Stopping a midi clocked sequence

[sdejesus13]

Hi,

New member here. I have a patch working the way I like featuring a simple 16 note sequence clocked by a ClkGen module. I am now converting this to be clocked by the Midi Global module. The problem is with starting, stopping and restarting the sequence.

When I had the ClkGen module, I mapped the on/off switch of that module to a knob. This let me start, stop and restart the sequence easily. With the Midi Global module, there is no such switch.

I tried inserting a switch module between the midi clock out and the sequencer. This starts and stops the sequence just fine, but when I then restart the sequence, it will begin sequencing and then reset to step one unpredictably. I understand that this is because I have sent a reset pulse to the reset of the sequencer.

How can I accomplish this? I think that I need a setup such that when I stop the midi clock from reaching the sequencer, I then send a reset pulse to the sequencer reset input, but i do not know how to accomplish this.

Alternatively, it would be acceptable to me to turn the sequence on and off from a key on the keyboard. This would be like this post

http://electro-music.com/forum/viewtopic.php?highlight=sequencer&t=29172

except that I would like to press and release a key that starts the sequence at step one, then later press and release this same key or another key to stop the sequence.

Any ideas would be much appreciated.

Thanks.

[sdejesus13]

I wanted to clarify that waht I want is a way to restart the sequence so that it begins on step 1. When I clocked the sequencer from ClkGen, switching the On/Off switch of the ClkGen module worked that way. I now want to accomplish the same functionality but using the Midi clock. I would prefer to do this via a knob so I can have access to this control while in Panel Split mode. If the only way to do it was via keys on the keyboard, then that would be ok, but would be my second choice.

I think what I really need is some way to send a reset pulse automatically after i operate the switch that will break the connection between the midi clock and the sequencer. Just not sure how to do that.

Thanks...

[sdejesus13]

Last night I tried out an idea that I had for solving this. I don't have a picture right now, but i will describe a solution with a flaw.

What I did was implement a 1 to 4 switch with the midi clock signal coming into the 1 input. I routed the 4th output to the ClkDiv Fix module so that when the selector is on position 4, I have midi clock pulses driving ClkDiv which is driving the sequencer. I routed the 3rd selector position to the reset input of the sequencer. I assigned the 4 position selector to a front panel knob. I also removed the midi sync output connection that formerly went to the sequencer reset and left the sequencer running in loop mode.

So now, when I move the assigned knob all the way clockwise to the 4th selector position, the sequencer starts running from step 1. When I turn the knob counterclockwise to any other position, I pass through or land on selector position 3, which stops the midi clock from driving the sequencer and sends the midi clock pulses to the sequencer reset. If I then return to selector position 4, I resume sending midi clock pulses to the sequencer after having sent one or more pulses to the reset input in the previous knob position, so the sequencer re-starts on position 1.

The downside i see to this solution is, because I am not sending the midi sync pulse to the sequencer, i cannot strictly synch the sequencer to other sequencers running in other slots simultaneously. The clock will be synched but the start and stop will not be synched so that beginning and end positions of the various sequencers will not be locked together. This is ok for my purposes but may be a problem for someone else desiring that kind of synch.

I will think more about this and see if i can get the midi synch pulse incorporated some how. Please respond with any suggestions.