Book Image

Hands-On RTOS with Microcontrollers

By : Brian Amos
Book Image

Hands-On RTOS with Microcontrollers

By: Brian Amos

Overview of this book

A real-time operating system (RTOS) is used to develop systems that respond to events within strict timelines. Real-time embedded systems have applications in various industries, from automotive and aerospace through to laboratory test equipment and consumer electronics. These systems provide consistent and reliable timing and are designed to run without intervention for years. This microcontrollers book starts by introducing you to the concept of RTOS and compares some other alternative methods for achieving real-time performance. Once you've understood the fundamentals, such as tasks, queues, mutexes, and semaphores, you'll learn what to look for when selecting a microcontroller and development environment. By working through examples that use an STM32F7 Nucleo board, the STM32CubeIDE, and SEGGER debug tools, including SEGGER J-Link, Ozone, and SystemView, you'll gain an understanding of preemptive scheduling policies and task communication. The book will then help you develop highly efficient low-level drivers and analyze their real-time performance and CPU utilization. Finally, you'll cover tips for troubleshooting and be able to take your new-found skills to the next level. By the end of this book, you'll have built on your embedded system skills and will be able to create real-time systems using microcontrollers and FreeRTOS.
Table of Contents (24 chapters)
Section 1: Introduction and RTOS Concepts
Section 2: Toolchain Setup
Section 3: RTOS Application Examples
Section 4: Advanced RTOS Techniques


You've now learned the basics of how to use queues in a variety of scenarios, such as passing simple and composite elements by value and reference. You're aware of the pros and cons of using queues to store references to objects and when it is appropriate to use this method. We also covered some of the detailed interactions between queues, tasks, and task priorities. We finished with a simple real-world example of how to use task notifications to efficiently drive a small state machine.

As you become more accustomed to using RTOSes to solve a wide variety of problems, you'll find new and creative ways of using queues and task notifications. Tasks, queues, semaphores, and mutexes are truly the building blocks of RTOS-based applications and will help you go a long way.

We're not completely done with any of these elements yet, though—there&apos...