Simple Open EtherCAT Master Library for Arduino (Beta Ver.)

This is SOEM (Simple Open EtherCAT Master) library ported for Arduino.

It's just a experimental implementation with some problems.

The original SOEM is at https://github.com/OpenEtherCATsociety/SOEM

Supported hardware

• Arduino Due + Ethernet Shield 2 (W5500)
• GR-SAKURA

Known issues

Following issues are known on GR-SAKURA.

• EtherCAT must be initialized more than 3 seconds after power-on.
• It takes about 8 msec to receive a packet. It's too much.

Documentation of original SOEM

See https://openethercatsociety.github.io/doc/soem/

Article about this library (written in Japanese)

See https://lipoyang.hatenablog.com/entry/2019/08/13/125008