Real-Time C++: Efficient Object-Oriented and Template Microcontroller Programming
With this book, Christopher Kormanyos delivers a highly practical guide to programming real-time embedded microcontroller systems in C++. It is divided into three parts plus several appendices. Part I provides a foundation for real-time C++ by covering language technologies, including object-oriented methods, template programming and optimization. Next, part II presents detailed descriptions of a variety of C++ components that are widely used in microcontroller programming. It details some of C++’s most powerful language elements, such as class types, templates and the STL, to develop components for microcontroller register access, low-level drivers, custom memory management, embedded containers, multitasking, etc. Finally, part III describes mathematical methods and generic utilities that can be employed to solve recurring problems in real-time C++. The appendices include a brief C++ language tutorial, information on the real-time C++ development environment and instructions for building GNU GCC cross-compilers and a microcontroller circuit.
For this third edition, the most recent specification of C++17 in ISO/IEC 14882:2017 is used throughout the text. Several sections on new C++17 functionality have been added, and various others reworked to reflect changes in the standard. Also several new sample projects are introduced and existing ones extended, and various user suggestions have been incorporated. To facilitate portability, no libraries other than those specified in the language standard itself are used. Efficiency is always in focus and numerous examples are backed up with real-time performance measurements and size analyses that quantify the true costs of the code down to the very last byte and microsecond.
The target audience of this book mainly consists of students and professionals interested in real-time C++. Readers should be familiar with C or another programming language and will benefit most if they have had some previous experience with microcontroller electronics and the performance and size issues prevalent in embedded systems programming.
Why Read This Book
You will learn how to apply modern C++ idioms, templates, and object-oriented design to constrained, real-time microcontroller systems so your firmware is both efficient and maintainable. The book blends practical, low-level examples (register access, drivers, memory management) with guidance on deterministic, realtime-friendly design and useful math/utilities for embedded use.
Who Will Benefit
Embedded firmware engineers and system architects with some C/C++ and microcontroller experience who want to write high-quality, deterministic C++ for resource-constrained real-time systems.
Level: Advanced — Prerequisites: Solid C or C++ fundamentals, basic microcontroller knowledge (registers, interrupts, peripherals), and familiarity with build toolchains and debugging; some RTOS or concurrency experience is helpful.
Key Takeaways
- Implement low-level, register-level drivers and hardware abstractions using safe, efficient C++ class patterns.
- Apply template metaprogramming and compile-time techniques to reduce runtime overhead and improve determinism.
- Design and integrate custom memory management and embedded-friendly container types suitable for constrained RAM.
- Build RTOS-friendly concurrency primitives and structure multitasking code for predictable real-time behavior.
- Use fixed-point and numeric methods to implement efficient math utilities and signal-processing routines for MCUs.
- Profile and optimize C++ for microcontrollers, balancing expressiveness with worst-case execution and size constraints.
Topics Covered
- Part I — Foundations: C++ for Real-Time Embedded Systems
- C++ language overview and embedded constraints
- Object-oriented design patterns for microcontrollers
- Templates, constexpr, and compile-time techniques
- Optimization, code size, and real-time considerations
- Part II — Embedded Components and Drivers
- Register access abstractions and low-level drivers
- Custom memory management and embedded containers
- Multitasking, interrupt handling, and RTOS integration
- Testing, verification, and deployment strategies
- Part III — Mathematics and Utilities
- Fixed-point arithmetic, filters, and numeric algorithms
- Generic utilities, diagnostics, and benchmark examples
- Appendices: Toolchains, portability notes, and worked examples
Languages, Platforms & Tools
How It Compares
Compared with general C++ references like 'C++ Templates: The Complete Guide', Kormanyos focuses specifically on MCU constraints and realtime determinism; compared with MCU-era guides like 'Making Embedded Systems', it emphasizes modern C++ techniques rather than C-first firmware patterns.
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