Polaris info and weird led behaviour

Eurorack
#1

Hi all!
I’ve just purchuased an Intellijel Polaris and it sounds awesome.
I’ve jsut noticed a couple of strange things tho:

  1. the type led in the Notch mode seems to behave in a strange way (it seems like a firmware bug to me).
    for each press of the type button the led goes from A to B E C D instead of A B C D (Video). Should I update the firmware? if yes how can i do it? I didn’t see any usb port on the module
  2. In the HP mode, the C filter seems to cut more high frequencies then the D mode wich is really weird to me. if i put the cutoff knob all th wai CW i am still able to hear some low frequencies in the D type while in the C type those frequencies are more attenuated.
    Is this normal?

Andrea

#2

Did you buy a used module or is this new? Based on my logs the 1st one is a bug in an old (possibly beta) firmware that was subsequently fixed.

I’m not sure about #2, I assume by “cut more high frequencies” you mean “low frequencies” there… but I have not heard this reported before.

#3

I bought it used. Is there any way for me to update the firmware? I think I should need and USB isp device,is this correct?

Yhea sorry I meant to say that type c is cutting more the low frequencies then the type d. I can record some audio tomorrow if you want. Maybe it’s another bug and the led are displaying the wrong filter type.

Also in the pass band filter I have all 5 types but in the manual I can only see 4 types.

#4

You’ll need to update the firmware using the USB ISP or another AVR ISP. I think your unit has the original 1.00 firmware which also has the bug that eventually it will stop storing the filter selection. The later firmware will fix that.

#5

Since I’m not super into arm programming do you have any compatible USB ISP device to suggest me?

#6

The Arduino Nano should do the trick. You can update Polaris using the Intellijel Firmware updater which you can download from our website.

https://store.arduino.cc/usa/arduino-nano