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paparazzi/discuss

v5.16_stable released!

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08:17

EwoudSmeur commented #2537
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gautierhattenberger commented #2551
Jul 09 21:41

gautierhattenberger commented #2551

adamczer

@adamczer

correct, by simulation I meant the calls from paparazzi to the JSBSim, I would have to alter the run to functionality of the ui to call the newly created jar. Thanks for the advice I will try that make file.

Shubham Vyas

@kill2win

@flixr thank you. Will try that

Felix Ruess

@flixr

@adamczer you would probably need to #ifdef out the main in https://github.com/paparazzi/paparazzi/blob/master/sw/simulator/nps/nps_main.c#L92 and set the options yourself and then periodically call nps_main_periodic

I have to admit that I don't quite understand the reason for calling this from java though...

but then I'm not familiar with Java/C integration at all...

adamczer

@adamczer

The nps main init/ execution cycle would be replaced by a Java execution. All the calls that exist from this point of entry could then be called directly allowing for testing of framework prior to completing a full Java implementation. Its basically so I can swap out one component at a time and make sure I did not mess up something while porting. Does that make more sense?

Felix Ruess

@flixr

the approach does make more sense now, yes :-)
still wondering why you want to port it to java though... but maybe that's just because I'm biased against java ;-)

adamczer

@adamczer

Thanks again for the help

Felix Ruess

@flixr

no problem, hope that something like that works out

Joseph

@yoosofpiran

hi I am new to the paparazzi I was following installing instruction

http://wiki.paparazziuav.org/wiki/AR_drone_2/Software_installation

all things is ok but in last step when i want to creat shortcut

after double clicking it say unable to execute

whats the prop?

Yoki Toki

@tokiyoki

Hey guys. I have some sort of stupid question. That it is. I have stm32f3discovery. Can I program paparazzi to the that board?

Gautier Hattenberger

@gautierhattenberger

@yoosofpiran did you try to start the paparazzi center from the terminal ? are you using gnome or KDE as desktop ?

@tokiyoki it should be possible although it is not really documented.
relevant configuration files are: https://github.com/paparazzi/paparazzi/blob/master/conf/boards/stm32f4_discovery.makefile and https://github.com/paparazzi/paparazzi/blob/master/sw/airborne/boards/stm32f4_discovery.h
you just need to change the board type for stm32f4_discovery in the ap target of you airframe file.

Piotr Esden-Tempski

@esden

He means stm32f3 that has an imitation chip on it

There was some effort to port paparazzi to that a long time ago but it was not finalized

As libopencm3 has support for the f3 by now the port should be quite streight forward if you know how to do embedded programming :)

Gautier Hattenberger

@gautierhattenberger

true, sorry, I misread it

Piotr Esden-Tempski

@esden

With imitation I meant IMU

Autocorrect hits once again:)

Petter

@Petterhg

Hello,
I am using the Optitrack system at TU Delft and have some problems with flying at higher altitudes. To be more precise, when I'm flying the Bebop between 2.5-3 meters fix alt. the altitude can vary ALOT when going from one waypoint to another and the drone can also completely deviate from the flight plan and start accelerating into the net (both on the sides and in the roof). At lower altitudes 1-2 m everything is working fine. Does anyone have any idea what can cause this?

Bart Slinger

@bartslinger

Optitrack is not a perfect system. If you fly higher, the drone is seen by less cameras which may result in difficulty with tracking. The best option you have is probably to recalibrate the arena before flying.

Yannick Jestin

@yannickj

we’re in the process of building a Flying Arena in ENAC, (est: july 2017) with optitrack or a similar kind of system. Hopefully, we’ll end up contributing to the tracking code.

Petter

@Petterhg

Okay, so you don't think there is anything in the flightplan/airframe that can cause this behaviour? And there's also no way (except calibration) to amend or decrease the amplitude of the problem?

Dan Berry

@dgberry1

When creating new messages, is there a particular section to create them in? Which message.XML file? I found 2 different ones in the PaparazziUAV install. Then, do I need to rebuild paparazzi after creating them?

Felix Ruess

@flixr

@dgberry1 message definitions are in the pprzlink repo: https://github.com/paparazzi/pprzlink/blob/master/message_definitions/v1.0/messages.xml
in paparazzi this is added in sw/ext/pprzlink/message_definitions/v1.0/messages.xml and copied to var/messages.xml on make

and yes, you need to call the toplevel make after changing messages

if you put a messages.xml file in conf/, that will be used instead...

Dan Berry

@dgberry1

@flixr OK thanks

Dan Berry

@dgberry1

Is there a particular section in the messages.XML I want to use? I was going to use ground messages section. Do I just pich a free message number? Just to make sure.

Felix Ruess

@flixr

that depends what kind of message you want to add...
if you want to send something from the aircraft to the ground, add it to "telemetry", for sending to the aircraft to "datalink" and if it's only a message between ground agents - well - to "ground"

see https://wiki.paparazziuav.org/wiki/Overview#System_Architecture

Dan Berry

@dgberry1

@flixr this is from an in-flight computer to the autopilot.

Felix Ruess

@flixr

http://wiki.paparazziuav.org/wiki/Telemetry