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Since not all support for QRB5165 has been integrated into the mainline PX4 source code ModalAI maintains a fork of the project where our custom additions are kept. The intention is to eventually merge all of these customizations into the mainline PX4 source repository so that our fork will no longer be necessary other than for research and development purposes.

Main components

  • The PX4 firmware lives in a fork of the main PX4 firmware repository
  • The voxl-px4 project is a wrapper that includes the PX4 firmware as a git submodule. The main objectives are to provide packaging and installation support.
  • The build environment for QRB5165 is encapsulated in a docker image. This docker includes an ARM64 toolchain from Linaro to build the code running on the applications processor and a Hexagon DSP toolchain to build the code running on the SDSP. The Hexagon SDK is only available directly from Qualcomm so instructions are provided to obtain the SDK and integrate it into the build environment docker image.