Getting started with the Zephyr OS

In this recipe, we will install the Zephyr project, the framework used in this chapter to build and run the TFLu application on the emulated Arm Cortex-M3 microcontroller. At the end of this recipe, we will check whether everything works as expected by running a sample application on the virtual platform considered for our project.

Getting ready

To get started with this first recipe, we need to know what the Zephyr project is about.

Zephyr (https://zephyrproject.org/) is an open source Apache 2.0 project that provides a small-footprint Real-Time Operating System (RTOS) for various hardware platforms based on multiple architectures, including Arm Cortex-M, Intel x86, ARC, Nios II, and RISC-V. The RTOS has been designed for memory-constrained devices with security in mind.

Zephyr does not provide just an RTOS, though. It also offers a Software Development Kit (SDK) with a collection of ready-to-use examples and tools to build Zephyr-based...