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Re: [Paparazzi-devel] Problem with Parrot AR Drone 2 and Flight Recorder


From: Ben Laurie
Subject: Re: [Paparazzi-devel] Problem with Parrot AR Drone 2 and Flight Recorder
Date: Sun, 14 Jul 2013 13:46:02 +0100

On 10 July 2013 17:04, Freek van Tienen <address@hidden> wrote:
> Hello,
>
> Are you trying to upload the SDK version?
> And does the PFD(Primary Flight Display) in the GCS work? We currently are
> having some problems with the SDK version that it sometimes doesn't seem to
> get any navdata, and I think it has something to do with the internal socket
> connections. You could try to telnet and kill the ap.elf and run it trough
> telnet so that you can see the output. Then you can easily debug with some
> printf's. The quickfix for the navdata problem is to upload it a couple of
> times until it works.
>
> PS. The GPS tab on the GCS doesn't work yet with the parrot GPS, because it
> isn't implemented yet. You need to look at the blocks next to the battery
> level, the lowest one should say either "NO FIX" or "3D FIX".

OK, so I patched in some debugging, and the problem seems to be that
I'm not getting GPS packets at all...

When option 27 arrives, it has length 12 and is all zeroes (apart from
the tag and length field, of course). Not sure where to go from here,
since that's obviously not the data expected...

>
>
> 2013/7/9 Ben Laurie <address@hidden>
>>
>> I asked on IRC and was advised to write here.
>>
>> I just tried to get Paparazzi going with the Parrot and Flight
>> Recorder, and, in short, it doesn't work. I've not used Paparazzi
>> before, so I don't really know what to expect, so its hard for me to
>> know what to report here, but in short:
>>
>> a) Uploads to the drone seem to work, I can telnet in and see that
>> ap.elf is running.
>>
>> b) The map interface (GCS?) gets stuck in the "Wait GPS" state and
>> indeed the GPS tab shows nothing except "Pos accuracy: N/A".
>>
>> c) The log claims the battery is critically low, but it was freshly
>> charged.
>>
>> What can I do to help diagnose/fix this (note: I can write code :-)?
>>
>> Oh yes, I followed the directions here:
>> http://paparazzi.enac.fr/wiki/AR_Drone_2/getting_started
>>
>> _______________________________________________
>> Paparazzi-devel mailing list
>> address@hidden
>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>
>
>
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