Zephyr RTOS Cookbook: Build portable and scalable embedded systems through hands-on recipes

Zephyr RTOS Cookbook delivers hands-on recipes for tackling real-world challenges in portable, scalable Zephyr application developmentFree with your book: DRM-free PDF version + access to Packt's next-gen Reader*Key FeaturesBuild and organize Zephyr applications using West to enable clean, reproducible, multi-repo workflowsConfigure features with Kconfig and describe hardware with DeviceTreeDevelop portable, scalable systems for industrial and IoT devices using Zephyr subsystems and the device driver modelBook DescriptionAdopting Zephyr RTOS can feel very different from working with bare-metal systems, traditional RTOSes, or embedded Linux. Instead of tightly coupled board-specific code, Zephyr follows a platform-oriented approach built around reusable components, standardized subsystems, and configuration-driven behavior. This shift can be unfamiliar at first, especially for developers moving to Zephyr for real-world products.Zephyr RTOS Cookbook is a recipe-led guide designed to help you make that transition with confidence. Rather than treating Zephyr as just a kernel, the book shows how to work with it as a complete platform. You’ll learn how to structure projects using West-managed, multi-repo workspaces, enable and customize system features with Kconfig, and describe hardware cleanly using DeviceTree to keep applications portable across boards.Each recipe focuses on a practical task you’ll encounter when building Zephyr-based systems, from integrating drivers and subsystems to reasoning about initialization order, device availability, and permissions at runtime. By the end of the book, you’ll be able to develop maintainable Zephyr applications, adapt them to different hardware configurations, and confidently scale your codebase across projects and teams.*Email sign-up and proof of purchase requiredWhat you will learnSet up a reproducible Zephyr development environment and West workspaceStructure apps and modulesNavigate the Zephyr build flow and inspect key generated outputsConfigure features with KconfigDescribe and customize hardware using DeviceTreeUse common subsystems: GPIO, I2C, adc, logging, and shellApply user mode to enforce securityControl peripherals from applications using driversWho this book is forThis book is for embedded developers and engineers transitioning to Zephyr from traditional RTOSes, bare-metal environments, or embedded Linux. It is aimed at readers with experience in embedded C who want to adopt Zephyr as a scalable platform for building portable systems that can be deployed consistently across multiple boards and development teams.Table of ContentsIntroducing the Zephyr ProjectStructuring and Building Zephyr ApplicationsConfiguring Zephyr Applications with KconfigUsing DeviceTree for Describing HardwareExploring Zephyr's Device Driver ModelSystem Initialization and MultithreadingWorking with Zephyr SubsystemsUser Mode in Zephyr Read more