I was recently uploading the latest Arduplane firmware (3.9.8) onto a Cube that was purchased in 2017 (hence it is not affected by the latest service bulletin). I observed the following:
When uploading, Mission Planner prompts me whether the board is a CubeBlack. If I click yes, it automatically selects ChiBiOS and the startup message states “CubeBlack”
If I click no, Mission Planner then gives me a choice between ChiBiOS and NuttX. Choosing ChiBiOS gives the startup message “fmuv3”.
Why is there a need for two different ChiBiOS builds for the Cube (fmuv3 vs CubeBlack)? Is there a difference between the two?
Thanks in advance (: