Arduino Yocto Project

This repository contains two Yocto layers designed to support Arduino hardware platforms:

Layers Overview

1. meta-arduino-nxp

This layer provides Board Support Package (BSP) configurations for Arduino hardware platforms based on nxp processor. It includes:

• Device tree overlays.
• Kernel module recipes for Arduino-supported peripherals.
• U-Boot configurations for Arduino boards.

2. meta-arduino-lmp

This layer provides specific customizations targeting the Linux Micro Platform (LMP) distribution from Foundries.io (Qualcomm). It includes:

• Custom configurations for LMP.
• Recipes for integrating Arduino-specific features with LMP.

Getting Started [LmP Builds]

1. Initialize and sync the Yocto manifest:

   repo init -u https://source.foundries.io/factories/arduino/lmp-manifest.git -m arduino.xml -b devel
   repo sync -j1 --fail-fast

2. Build the Docker image for the Yocto environment:

   cd .repo/manifests
   docker build -t yocto-lmp-v93 .
   cd ../..

3. Set up the Docker environment:

   docker run -it -u $UID -v $PWD:/workdir -w /workdir --name yocto-lmp yocto-lmp-v93 bash

Build mfgtools

1. Configure the build environment for mfgtool-files:

   DISTRO=lmp-mfgtool MACHINE=portenta-x9 . setup-environment
   echo "ACCEPT_FSL_EULA = \"1\"" >> conf/local.conf
   echo "MFGTOOL_FLASH_IMAGE = \"lmp-devel-arduino-image\"" >> conf/local.conf

2. Build the mfgtool-files:

   bitbake mfgtool-files

Build the Image

1. Configure the build environment for the image:

   DISTRO=lmp-base-xwayland MACHINE=portenta-x9 . setup-environment
   echo "ACCEPT_FSL_EULA = \"1\"" >> conf/local.conf

2. Build the image:

   bitbake lmp-devel-arduino-image

Supported Images

• lmp-devel-arduino-image
• lmp-factory-image

Getting Started [NXP Builds]

1. Initialize and sync the Yocto manifest:

   repo init -u https://github.com/nxp-imx/imx-manifest.git -m imx-6.6.3-1.0.0.xml -b imx-linux-nanbield
   repo sync -j1 --fail-fast

2. Clone this repository into the sources directory created by the manifest:

   cd sources
   git clone https://github.com/Arduino/meta-arduino.git
   cd meta-arduino && git checkout nanbield

3. Set up the Docker environment:

   docker run -it -u $UID -v $PWD:/workdir -w /workdir --name yocto-nxp arduino/yocto-lmp-v93 bash # First time only
   docker start yocto-nxp # Every login, skip first time
   cd ~/yocto/nxp && docker exec -it yocto-nxp bash # Every login, skip first time

4. Configure the build environment:

   MACHINE=portenta-x9 DISTRO=fsl-imx-xwayland EULA=yes source ./imx-setup-release.sh -b bld-xwayland # First time only

5. Add the layers to your bblayers.conf file:

   echo 'BBLAYERS += "${BSPDIR}/sources/meta-arduino/meta-arduino-nxp"' >> conf/bblayers.conf

6. Customize your local.conf file to optimize the build environment:

   BB_NUMBER_PARSE_THREADS = "4"
   BB_NUMBER_THREADS = "4"
   PARALLEL_MAKE = "-j 4"

Supported Boards

• Portenta X8
• Portenta X9
• Raspberry Pi CM4
• System Electronics Astrial

Building the Image

Run the following commands to build an image:

source setup-environment
bitbake <image-name>

Replace <image-name> with the desired image recipe, such as arduino-console-image.

Contributing

Contributions are welcome! Please submit pull requests or open issues for any bugs or feature requests.

License

This project is licensed under the GPL-2.0+.