https://github.com/amid68/multi-node-token-ring-network-over-uart

A UART-based token-ring communication protocol implementation using Zephyr RTOS for multi-node embedded systems.
https://github.com/amid68/multi-node-token-ring-network-over-uart

embedded embedded-c embedded-software embedded-systems firmware firmware-development frdm-k64f nordic-semiconductor nordicsemi nrf52840 nrf52840-dk nxp stm32 stm32f446re stm32f446re-nucleo token-ring uart uart-protocol zephyr zephyr-rtos

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A UART-based token-ring communication protocol implementation using Zephyr RTOS for multi-node embedded systems.

• Host: GitHub
• URL: https://github.com/amid68/multi-node-token-ring-network-over-uart
• Owner: Amid68
• License: mit
• Created: 2024-12-12T08:07:23.000Z (10 days ago)
• Default Branch: main
• Last Pushed: 2024-12-12T08:57:38.000Z (10 days ago)
• Last Synced: 2024-12-12T09:27:34.533Z (10 days ago)
• Topics: embedded, embedded-c, embedded-software, embedded-systems, firmware, firmware-development, frdm-k64f, nordic-semiconductor, nordicsemi, nrf52840, nrf52840-dk, nxp, stm32, stm32f446re, stm32f446re-nucleo, token-ring, uart, uart-protocol, zephyr, zephyr-rtos
• Language: C
• Homepage:
• Size: 350 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Multi-Node-Token-Ring-Network-Over-UART

This repository hosts the development of a UART-based token-ring communication protocol for multi-node embedded systems. The goal is to achieve a deterministic, collision-free communication mechanism by sequentially passing a “token” frame through a closed loop of nodes, each granted turn-based transmission access. Leveraging the Zephyr Real-Time Operating System, the project focuses on predictable timing, robust error handling, and straightforward integration with common development boards.

**Key Features:**

- **Deterministic Communication:** Ensures only the token-holder transmits, preventing collisions.

- **Scalable Design:** Initially targets three nodes, but can be extended to five or more.

- **Robust Error Handling:** Integrates CRC checks and token regeneration strategies.

- **RTOS Integration:** Employs Zephyr’s threading and synchronization for reliable real-time operation.

**Project Status:**  

The requirements and design documents have been finalized. The repository setup and initial directory structure are the next steps. Implementation of the UART HAL, token management logic, and application-level data handling will follow incrementally.

**Planned Documentation:**

- [Requirements Document](docs/requirements.pdf)

- [Design Document](docs/design.pdf)