For all supported boards the maximum number of instances is 3. The
number of HIL_COMPASSES was already defined as 2 instead of 3, so this
is left as before.
the previous approach assumed a 1:1 mapping between compass backends
and compass instances, which isn't true on PX4.
It also only setup milligauss offsets on a set_and_save call, which is
not the only way offsets change
this adds a milligauss_ratio per instance, which is considerably
simpler
From now on there's a pair get_field_milligauss() and
get_offsets_milligauss() that can make the transition to the common
units across all compasses easier.
Most of the compass functionality is now abstracted in a base class, with the various sub-classes implementing just their unique functionality.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1647 f9c3cf11-9bcb-44bc-f272-b75c42450872
Lucas De Marchi
Andrew Tridgell
Staroselskii Georgii
Víctor Mayoral Vilches
Jonathan Challinger
Andrew Tridgell
Randy Mackay
uncrustify
rmackay9@yahoo.com
mich146@hotmail.com
DrZiplok@gmail.com
jasonshort
james.goppert