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[Paparazzi-devel] Lia 1.1 w/ Aspirin 2.2 - AP Failure Problems

From: phunter
Subject: [Paparazzi-devel] Lia 1.1 w/ Aspirin 2.2 - AP Failure Problems
Date: Tue, 21 Apr 2015 13:27:51 -0700
User-agent: SquirrelMail/1.4.21


We recently updated our PPRZ installation using the one-liner install
script from the wiki, but we're running into some problems getting our
systems back up and running.

Currently, we're working to get our Lia v1.1 w/ Aspirin 2.2 system
functional again, but are experiencing 'mayday - AP Failure, retake manual
control' errors. At this point we have abandoned our old configuration
files and are trying to get the provided 'MentorEnergy' example working
with as few modifications as possible; most changes are version numbers
and the change of AHRS and radio controller type.

We can build and flash to the unit, no issue. After binding the Spektrum
radio the telemetry link is established and messages are successfully sent
in either direction.

- Manual Flight is possible, but switching to FBW or Auto causes AP
Failure error.
- GPS (UBlox), Gyro, and Airspeed (EagleTree) appear to be functioning
nominally when analysing the MavLink messages from the aircraft.
- Target configuration uses the "lisa_m_2.2" as the board type as the Lia
1.1 is based off it.
- We're using float_dcm as AHRS, and alt_float as INS as defined in the
default MentorEnergy airframe configuration.
- We're using the factory default IMU Accelerometer calibration.
- GPS fix is never more accurate than 5 meters.

Any help is greatly appreciated. We were hoping to make use of the
numerous improvements we assume have been integrated in the last year.

Thanks in advance,

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