Practical Firmware Architecture (Paperback)

Paperback. Writing firmware that works is one thing. Writing firmware that can be changed, tested, reused, and moved to new hardware without breaking everything else is a much bigger challenge. Practical Firmware Architecture is a hands-on guide to designing embedded software with clear boundaries between application logic, hardware, drivers, platforms, and configuration. Instead of focusing only on how individual peripherals work, this book focuses on the architectural decisions that determine whether a firmware project remains manageable as it grows. Inside, you'll learn how to structure firmware into reusable modules, design clean APIs, build hardware abstraction layers, develop portable device drivers, separate configuration from implementation, and create software that can be tested without always depending on physical hardware. What You'll LearnDesign modular firmware structures that are easier to understand and maintainCreate clean APIs that hide unnecessary implementation detailsBuild hardware abstraction layers for different microcontrollersDesign reusable and portable device driversWork with GPIO, timers, PWM, interrupts, UART, SPI, I2C, ADC, and DACSeparate hardware configuration from application implementationSupport multiple boards and microcontroller familiesHandle errors and manage driver and device state consistentlyMake firmware easier to unit test and integration testUse mocks and hardware fakes to test code without physical devicesIntegrate drivers with RTOS-based systems and middlewareBuild portable board support packagesManage firmware across multiple product variantsOrganize versions, dependencies, and build configurationsBring APIs, HALs, drivers, services, configuration, application logic, and testing together in a complete architecturePractical Architecture, Not Just Theory Rather than presenting firmware architecture as a collection of abstract rules, this book shows how the different layers fit together in practical embedded development. You'll see how application logic can be separated from hardware-specific implementation, how drivers can be designed for reuse, and how architectural boundaries can make testing and platform changes easier to manage. The later chapters bring these concepts together in a complete multi-board environmental monitoring project. The project demonstrates how APIs, HALs, drivers, services, configuration, application logic, and testing can work together as a coherent firmware architecture. Who This Book Is For This book is written for embedded software engineers, firmware developers, electronics engineers who write embedded code, IoT developers, and advanced students who want to move beyond simply making firmware work. It is especially useful if you are: Building firmware for microcontrollers and embedded devicesMaintaining a firmware codebase that has become difficult to modifyDeveloping device drivers or hardware abstraction layersPreparing firmware to support multiple boards or microcontrollersWorking with RTOS-based embedded applicationsTrying to make embedded software easier to testDeveloping firmware that will evolve across multiple product versionsStudying embedded systems and want a stronger understanding of firmware architectureMoving from writing individual firmware features toward designing complete firmware systemsBuild Firmware That Can Grow With the Product Hardware changes. Components change. Product requirements evolve. New engineers join development teams. A prototype becomes a production product. The question is not whether Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…