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Learn Zephyr® – the new Era of Real Time OS

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Duration

5 Days

Learn Zephyr® – the new Era of Real Time OS




Real-time programming applied to the Zephyr operating system

 

In 2022, Zephyr OS became the largest open-source RTOS project by the number of commits and developers.

Build secure, connected, future-proof devices with Zephyr®

Zephyr RTOS is easy to deploy, secure, connect and manage. It has a growing set of software libraries that can be used across various applications and industry sectors such as Industrial IoT, wearables, machine learning and more. Zephyr is built with an emphasis on broad chipset support, security, dependability, long term support releases and a growing opensource ecosystem.

 

Objectives:

  • Learn how to develop, configure, debug and trace Zephyr applications

  • Discover the real time multitasking concept

  • Understand Real Time constraints, like determinism, preemption or interrupts

  • Understand the Zephyr kernel Services

  • Learn communication and synchronization mechanisms

  • Interactions with processor architecture features

  • Understand Zephyr memory management and data structures

  • Understand User mode and kernel mode

  • Writing a device tree

  • Writing a complete driver

Course environment:

  • Theoretical course

    • PDF course material (in English)

    • The trainer to answer trainees’ questions during the training and provide technical and pedagogical assistance

  • Practical activities

    • Practical activities represent from 40% to 50% of course duration

    • Example code, labs and solutions

    • Preconfigured Virtual Machine (VM) for doing labs during of after the training

    • STM3240G-Eval physical board or Qemu emulated STM32F4-Discovery board

Course Format:

  • Online course, 5 sessions, 6 hours each (excluding break time).

  • Lots of hands-on exercises during the course

  • Some Labs may be completed between sessions and are checked by the trainer on the next session.

Prerequisites

  • good C Language skills



Day One

Introduction to Zephyr

  • Zephyr Project

  • Zephyr Ecosystem

  • Why use Zephyr

  • Install and Use Zephyr

  • Build and Configuration Systems

    • West

    • CMake

    • Kconfig and configuration overlay

    • Configuration tools: menuconfig and guiconfig


Zephyr Without Threads

  • Operation without Threads

  • GPIO

  • Random Number Generation

  • Utilities

  • Data Structures

    • Single-linked List

    • Double-linked List

    • Ring Buffers


Exercise: Hello World from Zephyr, configure and blink LEDs using Zephyr

Exercise: Manage Zephyr linked list and understand container_of macro


Real-Time Concepts

  • Base real time concepts

  • The Real Time constraints

  • Multi-task and real time

  • Tasks and Task Descriptors

    • Content of the task descriptor

    • List of task descriptors

  • Context Switch


Demo: Analyse Context Switch internals


Scheduling

  • Task Scheduling and Preemption

    • Tick based or tickless scheduling

  • Scheduling systems and schedulability proof

    • Fixed priorities scheduling

    • RMA and EDF scheduling

  • Scheduling through Zephyr

    • Scheduling Algorithm

    • Cooperative Time Slicing

    • Preemptive Time Slicing

Day Two

Day Tree

Day Four

Day Five


Nohau Training Partner

This course is provided by a Nohau Training Partner, a trusted provider of hands-on training for professionals in embedded systems, software development, and engineering.

Nohau Training Partner

SELF PACED

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