This is introductory project showing the Device Tree mechanisms of Zephyr OS. This project details on how GPIO resources are mapped using Device Tree. It also provides a functional example of reading GPIO's.

We are using the STM32F3 Discovery board as a target for this project.

This project uses the latest version of initialization and build scripts.

The process of what's done in the script is explained in the following article.

cd Workspace/${ProjectDirectory}
...
./init-project

This would create the build_${ProjectDirectory} directory with Make initialized.

Note: By default the STM32F3 Discovery Board is selected. One can provide additional input to change that.

cd Workspace/${ProjectDirectory}
...
./init-project arduino_zero

The above would change the Build to arduino_zero

cd Workspace/${ProjectDirectory}
...
./build-flash

This would use the build_${ProjectDirectory} created in the *Initialization step.

Note: By default the STM32F3 Discovery Board is selected.

Currently there is no way to change this, but we are working on that.

There is a complete set of tutorials to help you get started on Zephyr OS :

• Installing the Zephyr SDK
  https://boseji.com/posts/zephyr-part-1-start/
• Your first project to blinky example on Zephyr OS
  https://boseji.com/posts/zephyr-part-2-blinky-example-stm32f3discovery/
• Application Development on Zephyr OS - creating the fancier-blinky
  https://boseji.com/posts/zephyr-part-3-app-dev

Copyright (c) 2020 Abhijit Bose https://boseji.com

SPDX-License-Identifier: Apache-2.0

All the files in this repository conform to Apache License, Version 2.0 unless otherwise specified.