A lightweight, easy-to-use open-source EtherCAT slave stack written in C for embedded applications.
SOES (Simple OpenSource EtherCAT Slave Stack) is an open-source implementation of an EtherCAT slave stack written in C. It provides a lightweight, portable solution for embedded devices that need to communicate on EtherCAT networks, offering an alternative to more complex commercial stacks while maintaining full protocol compliance.
Embedded systems developers and engineers working on industrial automation, robotics, or motion control applications that require EtherCAT slave functionality on resource-constrained devices.
Developers choose SOES for its simplicity, small footprint, and educational value—the clean C code is both practical for production use and excellent for learning how EtherCAT slave implementations work internally.
Simple Open Source EtherCAT Slave
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Small footprint and written in optimized C code, making it ideal for resource-constrained embedded systems as highlighted in the README's focus on simplicity and portability.
Implements full EtherCAT functionality including CoE, SDO, PDO mapping, and synchronization modes, ensuring compliance with industrial standards as listed in the feature set.
The code is designed to be clean and understandable, serving as both a practical tool and a learning resource for EtherCAT internals, per the project's philosophy.
Supports polling, interrupt, or mixed modes, allowing developers to tailor the stack to specific real-time application needs, as noted in the README's feature list.
The README explicitly lists updating documentation as a TODO, which can hinder onboarding and troubleshooting for new users.
Key features like EoE lack sample applications per the TODO, requiring extra development effort for implementation beyond basic use cases.
As a specialized open-source project, it has fewer active contributors and community resources compared to commercial stacks, potentially slowing issue resolution.