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


After reading this chapter, you should have a good understanding of why code reuse is important and also how to achieve it. We've looked at the details of using abstraction in an embedded environment and created fully hardware-agnostic interfaces that increase the flexibility of code. We also learned how to use these interfaces in conjunction with tasks to increase code reuse across projects. Finally, we touched on some aspects of storing shared source code.

At this point, you should have enough knowledge to start thinking about how to apply these principles to your own code base and projects. As your code base starts to have more common code that is reused between projects, you'll begin to reap the benefits of a shared code base, such as fewer bugs, more maintainable code, and decreased development time. Remember, it takes practice to become good at creating...