Patch to test korg volca synchronisation via PLL object

[loopmasta]

This patch uses two custom axo objects. A very simple PLL frequency multiplier object to get 16 steps per bar from a volca 2ppq sync and a BPM object to check the volca speed. The PLL object works but still needs some tweeking.

• faster initial phase lock
• better handling of fast volca speed changes
• general code improvements

pll.axo (1.3 KB)
bpm.axo (881 Bytes)
volca.axp (10.6 KB)

[JeromeB]

Thanks for theses useful objects.
But I would like to keep my audio input free. Is there a way to sync my volca bass to Axoloti board using an analog input ?
I'm newbie with electronic...

[Blindsmyth]

@JeromeB
just use gpios like with a switch as described here:

Official Pin Outs revised (work in progress)

I'll be working on revising this post here, I was going to write it in a text document but realized it would be easier for me to get all the images if I just made it here. I was looking for a a save feature so I could wait to post until complete but could not find it. So please note this is all a work in progress and NEEDS further revision/information. GPIO Overview [image] VDD versus VDDA versus VDDC VDD is the digital 3.3V supply, use it to power external logic VDDA is the analog refe…

It's really easy and works in both ways either receiving or giving clock.
Tried this with the Volca and it's also a great way to sync analog delay pedals that have tap tempo input.

[JeromeB]

Thanks, but I don't understand which schematic to use. Should I use the "bipolar-input-3.3v.png" schematic, in order to adapt volca clock output signal to analog gpio input ?

[Blindsmyth]

Hmmm I just went straight to the Gpio, repurpusing the headphone jack like:
Tip: Gpio (Pa0)
Sleeve: VDD
(Ring ist left empty since it's a mono jack)

Will the voltage from the Volca be problem @johannes?