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

Development board considerations

A dev board is any piece of hardware that engineers use during the early development phase of a project. Dev boards aren't just for MCUs; they are useful for many different types of hardware—anything from op-amps to field-programmable gat arrays (FPGAs).

MCU dev boards should provide a few key functions:

  • Ancillary circuitry, required to power and run the MCU
  • A way to program and communicate with the MCU
  • Connectors for easy connection to external circuitry
  • Possibly, some useful on-board ICs to exercise some of the peripherals

There are many different routes that can be taken when it comes to evaluating MCUs. We're currently enjoying a period of time where hardware is inexpensive and commonly available. Because of this, there are a plethora of options to choose from for evaluating hardware. There are three major groupings that...