Subcategories

• VOXL 2 Mini

  VOXL 2 Support Forum

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  249
  Posts

  V

  Hi @dougmiller
  If your VOXL 2 Mini is TrustZone Configured for UART over J10, then yes, there are 2 pins available as inputs.
  https://docs.modalai.com/voxl2-mini-connectors/#j10---external-uart
  You can see GPIO_40, GPIO_46 and GPIO_64 are input capable.
  GPIO_40 and GPIO_64 are able to be configured to do wake events in the SoC so they have extra configuration to route to a power manager. Depending on how you write your IRQ routine, that may or may not help.
  Hope this helps!

• VOXL 2

  VOXL 2 Support Forum

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  Topics
  2948
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  T

  @swickliff Interesting, have you had success with this hardware setup before?

• VOXL Flight
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  Topics
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  A

  @marian , I was able to replicate it and when running dmesg, I see the following message:

  [ 390.539854] R0: [VosMCThread][02:38:25.067557] wlan: [3231:E :PE ] limProcessAssocReqFrame: 914: Max Sta count reached : 2

  Changing max_num_sta in hostapd.conf did not help.

  After doing a little bit of digging, it seems like this may be a hardware limitation of the wifi hardware on VOXL1 in SoftAP mode : https://android.googlesource.com/kernel/msm.git/+/android-msm-bullhead-3.10-n-preview-1/drivers/staging/qcacld-2.0/CORE/MAC/src/pe/lim/limProcessAssocReqFrame.c#847 .

  It could also be a setting somewhere low level and unfortunately we don't have any information on that. Sorry about that.

  The wifi module on VOXL1 is QCA6174.

  Alex

• VOXL
  119
  Topics
  560
  Posts

  A

  @qqa , we have document how to achieve folder-level encryption on VOXL2 here : https://docs.modalai.com/enabling-file-encryption/ . Please let us know if you have any other questions.

• Flight Core v2
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  Topics
  206
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  E

  @TomP Oh, yes, this is all great news! Very exciting to hear! I will send an email to your account with some follow up questions.

• Flight Core
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  Topics
  135
  Posts

  T

  Unbricked! Here's some context/advice for anyone trying to do the same. If you purchased a cheapo STLINK V2 from Amazon as I did. Picture below...

  alt text

  $0 Fix:
  What may very well happen to ya, is the RESET pin doesn't work. In this case you will need a friend. With said friend, you must dilligently connect to the board using Under Reset Mode and Hardware Reset. The second your homie clicks the connect button, you, the bricker of the board must move your jumper cable from the RESET pin which is 3.3V to an open Ground, leave it for exactly 1 second, then move it back to RESET. This should work like a charm, but may require one or two tries to get the right timing. See instructions below.

  alt text

  $10 Fix:
  Program a Pico/Arduino to do your 1 second ground for you.

  $78 Fix:
  Buy the real STLINK V2.

• VOXL 2 IO

  VOXL 2 I/O (M0065) Support

  23
  Topics
  170
  Posts

  M

  Hi @Amir-Avni,

  Does your silkscreen on VOXL2 show M0154 or M0054?

  If M0054, it's 'hard coded' as an output only... behind a uni-directional level shifter.....

  If it's M0154, there's a directional level shifter in front of that GPIO that allows us to (with a kernel tweak) switch between UART and SPI.

  By default we are configured for UART use case, and the level shifter is set to allow an INPUT, by setting GPIO 67 low (as default), which is setup in device tree here, see "67" in modalai,gpio-init-output-low
  https://gitlab.com/voxl-public/system-image-build/meta-voxl2-bsp/-/blob/v1.8.02/recipes-kernel/linux-msm/files/dts/common/m0xxx-modalai-gpio.dtsi?ref_type=tags#L12

  To enable VOXL2 J10 pin6 (gpio46) as an input, make sure gpio67 is set to low

• Flight Core - ArduPilot
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  Topics
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  Posts

  P

  ok I found the problem...
  the Cube Serial inteface are driven by TXS0108E Level Shifter powered both side with 3.3 volt making it marginal for the Voxl Primary Serial interface. Switching to secondary interface on the Voxl made it work correctly.

  I sent a request for a change in the WIKI to reflect that configuration

  40f28124-b098-4482-a038-25c450b9df6c-image.png