- reduces amount of board configuration required
- removes the cyclic dependency between io_timers_t and timer_io_channels_t
Fixes a bug in the fmuk66-v3 config: the 2. timer has 3 channels associated
not 2.
Fixes a bug in the modelai config: the 2. timer has 4 channels associated.
the value '1000' is not really magic, and it was resulting in sending
a single 1ms pulse on all IO channels for a brief instant on
startup. With some servos this led to the control surfaces being at
extremes (and straining) on startup. It may also contribute to making
ESC calibration harder on multi-rotors
In the worst case it could cause a IC motor with reverse throttle to
go full throttle on startup
A logic analyser shows the problem very clearly. Changing the
default_value fields to 0 from 1000 fixes the issue and no pulses are
generated until an explicit value suitable for the airframe is
provided via one of the many methods PWM output values can be
generated
Conflicts:
src/drivers/boards/px4fmu-v4/px4fmu_pwm_servo.c
src/lib/ecl
Beat Küng
Daniel Agar
mcsauder
David Sidrane
James Goppert
Julian Oes
Lorenz Meier
Andrew Tridgell
px4dev