The nudge value depended on RC3_TRIM, which is not a reliable
value. It tried to only take effect when the throttle stick was above
50%, but if RC3_TRIM was high for some reason (say 1500) then it would
actually depress the throttle by a large amount, which could cause the
plane to stall.
This also adds a boolean option THROTTLE_NUDGE to allow disabling of
throttle nudging
this allows you to select different altitude control algorithms. The
current choices are for the default (automatic based on if airspeed is
available), or to force a non-airspeed algorithm
The idea is to make it possible to use airspeed for some things (like
wind speed, speed scaling) but not for alt control
setting ARSPD_ENABLE to 1 and ARSPD_USE to 0 allows the airspeed
sensor to be initialised and logged without it being used for flight
control. This is very useful when initially testing an airspeed sensor
in a new plane. It also makes it possible to enable/disable the use of
the airspeed sensor during a flight at any time.
Fix an issue with initialization of channels that on-line changed their function.
For the curious people that the code size overhead of having any aux channel do any function (with this code) is 44 bytes.
To see wich code I'm talking about, do a git diff 05057ac2d455..this_commit (replace this commit with the commit hash of this commit)
This simplifies code sharing between ArduCopter and Arduplane at the expense of 48bytes.
Moved CH_x defines out of the defines.h file and into the library where they belong