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

Using SEGGER J-Link

A debug probe is a device that allows a computer to communicate and program the non-volatile flash of an MCU. It communicates with special hardware on the MCU (called Coresight on ARM Cortex-M processors). The SEGGER J-Link and J-Trace family of debug probes are among the most popular in the industry. SEGGER also offers useful software that integrates with their tools free of charge. The accessibility of these tools and the quality of the accompanying software makes this an excellent fit for use in this book.

If you plan on using a paid IDE, the IDE vendor likely has their own proprietary debug probes available. Many excellent software features will likely be tied to their hardware. For example, ARM Keil uVision MDK integrates with ARM Ulink probes and IAR offers their I-Jet debug probes. IDEs such as these also integrate with third-party probes but be aware...