the bad value is -32768 not 0xffff (which is -1)
-32768 badly corrupts the low-pass filter, and is what we see in logs
(a large negative spike on all 3 axes)
update to bug fix from:
https://github.com/ArduPilot/ardupilot/pull/23033
this error happens often enough that it is frustrating for users who
can't arm, which just encourages use of forced arming.
logs show this happening at a rate of once every few seconds, which
doesn't impact on the usability of the gyro (which is at 2kHz), but
does prevent arming with this error incremement
Original BMI088 has 24G range so it was hardcoded for *scale* within
read_fifo_accel. Added a class variable accel_range which is assigned
the correct value when the sensor type is received (16.0 or 24.0).
we have seen errors where the BMI088 gets out of sync, so that the 3
axes are rotated. The data is shifted by 4 bytes, so that X=Z, Y=X
and Z=Y
this changes the BMI088 to "stop on full" mode, which is what Bosch
use in their example drivers, and also catches FIFO overrun events and
triggers a full FIFO reset. This should fix the problem with the FIFO
sync
Rework after review:
- Kept old IMU and barometer definition of crazyflie 2.0 in hwdef
- Added comment regarding soft-reset command
- Added defaults.parm for crazyflie
Andrew Tridgell
Andy Piper
Leonardo Garcia
murata
duccan
Randy Mackay
Peter Barker