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zephyr-uart

Configure Zephyr UART peripherals across polling, interrupt, and async DMA APIs.

22|3|Updated Jan 9, 2026
Search Tags:#configuration#DMA#embedded#serial#uart#interrupt#zephyr
One-click install
npx skills add https://github.com/ksachdeva/zephyr-rtos-ai --skill zephyr-uart
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: zephyr-uart
Source: https://github.com/ksachdeva/zephyr-rtos-ai/tree/main/skills/zephyr-uart
Command: npx skills add https://github.com/ksachdeva/zephyr-rtos-ai --skill zephyr-uart

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) and scripts (resource) components.

What problem does it solve?

This Skill provides comprehensive guidance for configuring and utilizing Zephyr's UART subsystem, enabling reliable serial communication in embedded systems.

Core Features & Use Cases

  • API Selection: Guides users to choose between polling, interrupt-driven, and async DMA APIs based on their application's needs.
  • Device Setup: Demonstrates how to obtain and verify UART device references from Devicetree or runtime.
  • Troubleshooting: Offers diagnostics for common UART communication issues such as baud rate mismatches and pin configuration errors. For example, troubleshooting a serial connection that produces garbled data due to misconfigured pins or mismatched baud rates.
  • Full Pattern Examples: Provides code snippets for implementing UART transmission, reception, and error handling in C.
  • Configuration: Explains relevant Devicetree properties and Kconfig options for UART setup.

Quick Start

Use the zephyr-uart skill to configure UART0 for 115200 baud and handle incoming data via interrupts.

Frequently Asked Questions about zephyr-uart

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I configure Zephyr UART for serial communication in embedded firmware?▼

Configuring Zephyr UART involves obtaining a device reference from Devicetree, setting Kconfig options, and using an API mode for transmission. This Skill provides C code snippets and instructions for this setup.

What is the best way to choose between polling, interrupt, and DMA APIs for Zephyr UART?▼

The best way to choose a Zephyr UART API is by evaluating your application's latency and throughput needs. This Skill guides you through selecting between polling, interrupt-driven, and async DMA modes based on specific firmware requirements.

How do I get a UART device reference from Devicetree in Zephyr?▼

Getting a UART device reference from Devicetree in Zephyr involves using specific macros to bind the node and verifying the device is ready. This Skill demonstrates how to obtain and verify these references for embedded serial communication.

Why does my Zephyr UART serial connection produce garbled data?▼

Your Zephyr UART serial connection produces garbled data due to baud rate mismatches or misconfigured pins. This Skill provides troubleshooting diagnostics to identify and resolve common configuration errors in embedded setups.

How do I handle incoming serial data using Zephyr UART interrupts?▼

To handle incoming serial data using Zephyr UART interrupts, you must configure the interrupt-driven API and implement the appropriate callback functions. This Skill provides full pattern examples for interrupt-based reception in C.

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