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Inspect and Configure SKU

Your VOXL or VOXL development kit ships with a SKU number written to a persistent data partition at /data/modalai/sku.txt which it used to inform various Modal Pipe Architecture tools what sort of product the VOXL is installed in. Most importantly, voxl-configure-mpa reads this SKU to decide which services to enable and how they should be configured.

Generally speaking, you should not need to change the SKU unless you are transferring VOXL to a different product or changing which cameras it is connected to. However, it is useful to know what it is and what it means.

Table of Contents

  1. Table of Contents
  2. Inspect SKU
  3. Configure SKU
  4. Understanding the SKU Number
  5. Source Code

Inspect SKU

To inspect the SKU of your device, first access the device with adb shell. Then use the voxl-inspect-sku command to get a printout like this:

voxl2:/$ voxl-inspect-sku

family code:   MRB-D0014 (starling-2)
compute board: 4 (voxl2)
hw version:    1
cam config:    27
modem config:  0 (none)
tx config:     7 (elrs_beta_fpv)
extras config: 0 (none)
SKU:           MRB-D0014-4-V1-C27-T7

Configure SKU

The voxl-configure-sku tool should be used to change the SKU that’s saved to disk. It will ensure the new /data/modalai/sku.txt is formatted correctly.

You can run the following help command to see the full list of arguments and options. However most of these arguments are for production use or CI test scripts.

voxl2:/$ voxl-configure-sku --help

If you are changing the SKU assigned to your VOXL, we suggest using the wizard which will present you options and ask several questions while constructing the desired SKU number.

voxl2:/$ voxl-configure-sku --wizard

Running voxl-configure-sku will not do anything other than updating the sku.txt file on disk. To actually reconfigure all of the services on VOXL see the voxl-configure-mpa tool.

Understanding the SKU Number

ModalAI development kit SKU numbers following the following structure:

{family code}-{board code}-V{hw revision}-C{camera config}-T{transmitter code}-M{modem code}-X{extras bitmask}

The voxl-inspect-sku tool above parses this and prints out the human readable version. To see tables of the valid family codes, board codes, and camera configs, you can use these tools:

voxl2:/$ voxl-print-family-table
voxl2:/$ voxl-print-board-table
voxl2:/$ print-camera-configs

These are the same functions that are called to construct the help text and wizard options for voxl-configure-sku.

Source Code

The source code for the above tools can be found at https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-configurator.


Next: The Modal Pipe Architecture