This is to match a change made to Copter.
It might be relevant to sub in that users may wish to have asymmetrical descent and ascent rates.
New parameters named:
PILOT_SPEED_UP (technically renamed PILOT_VELZ_MAX)
PILOT_SPEED_DN
Removed parameter PILOT_VELZ_MAX (technically renamed to PILOT_SPEED_UP).
Modes impacted:
ALT_HOLD
CIRCLE
POSHOLD
Update a section in GUIDED mode but I don't think it is ever used but update just in case.
It will use the PILOT_SPEED_UP for ascending max velocity. For down it will check if
it is 0, if so then it will PILOT_SPEED_UP instead, if non zero it will use PILOT_SPEED_DN.
This retains current behavior and gives the flexibility to change it if desired.
The above behavior is less of a concern for Sub but to keep it consistent its been implemented it the same way.
See discussion here:
https://github.com/ArduPilot/ardupilot/issues/7331
we were getting some uninitialised variables. While it only showed up in
AP_SbusOut, it means we can't be sure it won't happen on other objects,
so safest to remove the approach
Thanks to assistance from Lucas, Peter and Francisco
AP_AHRS_NavEKF doesn't use the rangefinder, it just delegates the
calls to the right estimator.
For libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.cpp the initialization
order has also been modified to match the order on vehicles. It's more
correct since it passes a reference when EKF2/EKF3 are already
constructed, while thos constructors use a pointer. Ideally these
should be moved to an init() method though, or use a get_instance().