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Silicon Labs firmware builder repository

This repository contains Dockerfiles and GitHub actions which build Silicon Labs firmware for Home Assistant Yellow and SkyConnect.

It uses the Silicon Labs Gecko SDK and proprietary Silicon Labs tools such as the Silicon Labs Configurator (slc) and the Simplicity Commander standalone utility.

Building locally

To build a firmware locally the build container can be reused. Simply start the container local with a build directory bind-mounted, e.g.

docker run --rm -it \
  --user builder \
  -v $(pwd)/build:/build \
  ghcr.io/nabucasa/silabs-firmware-builder:4.1.4

To generate a project, use slc generate. To replicate/debug build issues in an existing GitHub action, it is often helpful to just copy the command from the "Generate Firmware Project" step.

  slc generate \
      --with="MGM210PA32JIA,simple_led:board_activity" \
      --project-file="/gecko_sdk/protocol/openthread/sample-apps/ot-ncp/rcp-uart-802154.slcp" \
      --export-destination=rcp-uart-802154-yellow \
      --copy-proj-sources --new-project --force \
      --configuration=""

Then build it using commands from the "Build Firmware" step:

cd rcp-uart-802154-yellow
make -f rcp-uart-802154.Makefile release