Foundational skills for Zephyr RTOS development. Covers essential Embedded C patterns (BIT, CONTAINER_OF), real-time concurrency primitives (mutexes, semaphores, spinlocks), hardware literacy (datasheet-to-DTS mapping), and defensive programming. Trigger when writing core application logic, drivers, or troubleshooting foundational behavior.
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See how to installReview the instructions the agent will receive before you install.
Mastering the bedrock of Zephyr is essential for writing efficient, robust, and idiomatic code.
Zephyr uses specific macros to manage memory and hardware-software mapping.
CONTAINER_OF, BIT(), GENMASK(), ARRAY_SIZE.Safe multi-threading and interrupt handling are critical for stability.
k_mutex, k_sem, k_spinlock, atomic_t, ISR safety rules.Understanding how code interacts with the hardware description.
Preventing crashes through defensive programming.
errno.h, BUILD_ASSERT, validation patterns, return code checking.int sensor_read_checked(const struct device *dev)
{
if (dev == NULL || !device_is_ready(dev)) {
return -ENODEV;
}
return 0;
}
BIT, GENMASK) instead of raw literals.errno codes.errno return statements in C/C++ code.zephyr_macros.md: Essential macros (BIT, CONTAINER_OF, etc.).concurrency.md: Mutexes, Semaphores, Spinlocks, and ISR safety.devicetree_basics.md: Devicetree syntax and overlay patterns.error_handling.md: Error codes and defensive programming.errno_return_check.py: Return-code sign checker.foundation_examples/: Working code templates for drivers and logic.No reviews yet. Tell others what you thought.
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Custom board bringup for Zephyr RTOS using Hardware Model v2 (HWMv2). Covers directory structure, board.yml metadata, core configuration files (Kconfig, defconfig, CMake), and revision management. Trigger when creating new board definitions or porting Zephyr to custom hardware.
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Build system management for Zephyr RTOS. Covers West workspace initialization, manifest management, Sysbuild multi-image builds, Kconfig symbols, and CMake integration. Trigger when setting up workspaces, configuring builds, or troubleshooting build-time errors.
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Bluetooth Low Energy (BLE) integration for Zephyr RTOS. Covers GATT Services/Characteristics, GAP advertising, connection parameters, power optimization strategies, and the professional Send-When-Idle design pattern. Trigger when adding BLE connectivity, optimizing battery life for wireless devices, or implementing custom GATT profiles.
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IP networking fundamentals for Zephyr RTOS. Covers IoT protocol selection (LwM2M, CoAP, MQTT), IP stack configuration and trimming (IPv4/IPv6, UDP/TCP), and professional SDK integration as Zephyr modules using West manifests. Trigger when building cloud-connected applications, optimizing network memory usage, or integrating external cloud SDKs.
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USB and CAN connectivity for Zephyr RTOS. Covers USB device stack configuration (CDC ACM, HID, MSC), CAN controller integration, and professional USB-to-CAN adapter patterns including buffering and protocol packetization. Trigger when adding USB interfaces, implementing CAN bus communication, or building hardware diagnostic tools.
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Devicetree management for Zephyr RTOS. Covers syntax, bindings, overlays, Hardware Model v2 (HWMv2), and advanced node/property deletion patterns. Trigger when defining hardware topology, creating overlays, or mapping pins and peripherals.
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