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RA3 RTOS

RA3 RTOS is a custom-designed, open-source Real-Time Operating System tailored for embedded applications, currently supporting ARM Cortex-M3 processors. The project was initiated to create a flexible, lightweight OS with efficient task management and scheduling capabilities for resource-constrained systems.

Features

  • Task Management: Support for task creation, activation, suspension, and termination.
  • Task Scheduling: Utilizes a preemptive priority-based round-robin scheduling algorithm with plans for additional scheduling mechanisms.
  • Inter-task Communication: Implements semaphores, mutexes, and event groups for efficient synchronization.
  • Memory Management: Provides lightweight memory handling to optimize for embedded environments.
  • Sorting and Prioritization: Task prioritization is implemented using an efficient, memory-conscious bubble sort.
  • Low Power Optimization: Idle task hooks and CPU sleep modes are available to reduce power consumption.
  • SysTick and SVC Hooks: Built-in support for system-level hooks to improve flexibility and control.

Getting Started

  1. Download RA3 RTOS: You can download the latest release as a ZIP file from the Releases section.
  2. Unzip and Integrate: Simply unzip the package and add it to your project directory.
  3. Setup Instructions: Detailed setup and integration instructions can be found here.

Requirements

  • Processor: ARM Cortex-M3 or compatible processors.
  • Development Environment: Any standard ARM development environment with support for C.

How RA3 RTOS Works

RA3 RTOS employs a combination of preemptive and round-robin scheduling, designed to be efficient in both memory and processing overhead. By incorporating task prioritization and delayed scheduling, it meets the real-time requirements of embedded systems.

Documentation

The RA3 RTOS documentation includes in-depth information on:

  • APIs: Covering task management, semaphores, mutexes, FIFO operations, and memory management.
  • Code Examples: Demonstrating how to use the core features.
  • Contributions: Guidance on how to contribute to the project.

To explore more, please check the full documentation here.

Meet the Team

Currently, RA3 RTOS is developed and maintained by:

Ali Yasser Ali Abdallah
I’m a passionate computer engineering student dedicated to contributing to the embedded industry through RA3 RTOS. This project embodies my commitment to open-source solutions for embedded systems. I'm always open to expanding the team—enthusiastic contributors are welcome!

Contributing

To contribute to RA3 RTOS:

  1. Fork the Repository: Make your desired changes in a separate branch.
  2. Follow Coding Standards: Ensure your code adheres to RA3 RTOS coding rules.
  3. Submit a Pull Request: Once your feature is ready, submit a pull request for review.

For any questions or suggestions, feel free to reach out at engaliyasser7@gmail.com.

This README includes the links to the documentation PDF and the releases section based on the screenshot you provided. Let me know if you'd like any additional modifications.