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Re: [Paparazzi-devel] Magnetometer freeze problem occurring AR Drone 2.0

From: Gautier Hattenberger
Subject: Re: [Paparazzi-devel] Magnetometer freeze problem occurring AR Drone 2.0
Date: Fri, 06 Jun 2014 16:09:05 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131103 Icedove/17.0.10

Nice that we may have a solution for the freeze of the magnetometer.
Out of curiosity, does anyone knows which sensor is used for mag on the ardrone2 ?


Le 05/06/2014 18:20, Oswald Berthold a écrit :
hi daren,

very nice, i just tested your code in navdata.c and it seems to work.

the MagFreezeCount needs to be reset in an else clause of

    if (LastMagValue ==

have you tested how the 20ms or so navdata dropout is reflected during
flight? need to rush now, can only try that next week.

cheers, opt

opersupport writes:

I believe the problem might still occur on Paparazzi, considering that this
has happened with the "toilet bowl" effect with one particular incident.

For resetting the nav board, I modified some code by hand and re-compiled,
not with the Paparazzi source. I believe you can write something simple to
reset it yourself. My logic looks something like this, it occurs inside the
navigation update function


Use at your own risk, i've only tested on my custom code which works
similarly to Paparazzi but is not set up exactly the same way

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