(apologies for English posting - please suggest a more suitable forum if you prefer - Google did not make a good translation of this post)

In case anyone is interested, I have made an Arduino library containing scmRTOS. It's still fairly simple (creates three processes, exposes the basic scmRTOS functions directly to the Arduino sketch) but it works quite well on the Arduino Mega.

https://github.com/MikeSmith/scmRTOS_Arduino

= Mike