No I have never got this sorted, sorry that you have a similar problem, perhaps it will get looked at for the next update

Are the CV outputs sending 0V or 10V? If 10V there might be a hardware issue in which case you should contact monome for support.

Are the CV outputs sending 0V or 10V? If 10V there might be a hardware issue in which case you should contact monome for support.

thank you for your response Trent. i can confirm after testing it with multimeter, all the cv output sending 0V. i also tried open the max for live, using ^^command_center and ^^outs lfo, still get 0V.

it seems, from several attempt, i can’t enter the bootloader mode, even with the force bootloader. any suggestions what should i do next?

thanks

hey hey — really sorry to hear about the trouble.

if you are unable to place crow into the bootloader (through software or manually) and if crow is totally unable to connect to any of your devices (it doesn’t sound like it’s currently working with druid, m4l, or norns, yes?), then please email help@monome.org and we’ll arrange a repair / swap.

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hey Dan, yes all above are correct, including norns. okay i’ll email today, thanks so much for the response :pray:t4:

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General ecosystem Q (not sure what thread it’s best suited for):

Is it possible to address both Just Friends and W/ (in beta W/syn) via the same Crow script?

I understand you’d be subject to some global params of the script affecting both modules, but using a script similar to Trent’s jf sequencer, then adding in events to sequence W/syn as well, all within the same script.

Possible to address both simultaneously?

Yes it is. They exist independently on the ii bus, and will behave as 2 separate synths with different parameters. Not sure what you mean by “global params … affecting both modules” as they should have no interaction except one you explicitly script.

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Very cool.

And apologies, I’m very naive about scripting with crow (and coding in general!) - to clarify, I guess I was thinking if you changed the metro via druid, you’d be affecting both sequences? Unless you could write the script in away the two sequences are independent?

So much to learn!

I uploaded a boneheaded script instead of just running it (ugh). Did I brick my crow? I can’t seem to use the osx_linux-erase_userscript.command. It sits there for a bit and then prints the same “No DFU capable USB device available” that I get if I try to run it without crow connected.

Side note - crow only starts up properly about 30-40% of the time on startup of my synth. My friend Chris (who’s a longtime mod at MW) told me that my Doepfer case should have some of the best quality power, so I doubt that’s the issue.

EDIT: Fixed it. I didn’t realize I had to keep the jumper in place during the whole process. The intermittent startup problem persists, though.

Does input[n].mode('scale', ...) have a callback? I’m essentially trying to run a function every time the quantized voltage changes.

input[n].scale = function( s )
  — s is a table
  — see the docs for typical ways to use it
end
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Hey Yaaaaaaa’ll. Crow question.

My crow works great in my Intellijel case. But not at all in my Doepfer A-100LC9 case. All other units in that case work just fine. But I can’t get crow to come online for the life of me. I’m sitting at about 75% of the PSU’s max capacity, so I feel ok there. What else can I check?

I’m kind of at a loss, and also feel a little silly.

If you have a voltmeter, you can measure the test points on the back of the PCB to see if all the rails are ok. The silkscreen says what the expected voltages are.

I have that same case and use it for testing, so it shouldn’t be a compatibility issue with the PSU, but… something else… That Doepfer PSU has an issue where the +12V and -12V power rails come up with a time delay, but that time delay flips on a warm-boot vs cold-boot (+12V is first when cold, -12V is first when hot).

So you can try powering on (check that crow isn’t working), then quickly flick the power switch off then back on. If this does help, let me know and we’ll see if we can debug the issue to avoid this annoying workaround.

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Totally worked, @Galapagoose !

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Hi @mattlowery - I had the same problem moving a crow between cases. Worked fine in a case running on a Synthrotek PWR supply, but didn’t work in a case with an Elby ED126. I noticed the same problem with a Music Thing Radio Music. Chatting with @Galapagoose it seemed that the MCU wasn’t booting up properly. I tried loading a few different test script onto crow in a different case and then switching over, and I think I noticed that the outputs were sending out 10V regardless of what what loaded onto the crow in the other case. (There’s a post about this somewhere)

My solution was to add a power delay bus (sometimes called a soft start). I used one of these: https://www.elby-designs.com/contents/en-us/p365.html

I believe there is a similar thing by WMD: https://wmdevices.com/products/soft-start-module

Once I put the crow on this bus, it booted up fine. The same solution worked for the Music Thing Radio Music.

Flicking power off and then on again as @Galapagoose suggests was an effective workaround for the Radio Music for me for a little while until I got in and moved it to be powered from the soft start bus, so if that work around works for your crow, then that’d be a good first test if you don’t have a multimeter handy.

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Excellent info, thanks so much!

Can that elby designs soft start be used with a Doepfer case?

Otherwise can the WMD one power multiple modules, or do you need 1 soft start per module?

Is ASL still restricted to hardware outputs? It would be great to be able to control variables within a script or ii functions with it - i saw a (pre 2.0) post about this, and wondering whether this has changed?

This has not changed, and likely won’t happen. The next major crow update is a few months off, and the kind of ‘ASL over variables’ idea will likely be implemented using the clock module from norns. I explored some of these ideas in one of the Maps streams (using a beta version of clock) and it was quite effective, and forces the scripter to make decisions about ‘framerate’ of updates etc.

If you want to read more about the crow roadmap, there is some discussion here.

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@license - I don’t have experience with the WMD module or Doepfer power supplies, but the Elby power delay board takes +12V -12V and Ground as input via a 3 way terminal. So long as you can safely tap those sources from your main power supply or bus board, then you’ll probably be fine, but it’s probably best to check the specs directly and/or ask someone with direct experience of the power supply you’ll be using.

There’s more details on the delay board here:

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