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Re: [Paparazzi-devel] Problem with FTDI ground station

From: Nicolas Quendez
Subject: Re: [Paparazzi-devel] Problem with FTDI ground station
Date: Sun, 27 Jul 2014 17:37:04 -0300

Thanks Gautier,

Indeed, I missed the Udev rules copy to the good place, I will be more attentive next time ! 
So, for now, no more « failure » when I launch GCS. But still the black screen with « waiting for telemetry ». 

In XCTU (windows), from ground station modem, it detects the remote autopilot modem (when Lisa M powered), and I can see that the autopilot sends continuously some packets to the ground station modem. So informations probably go from the AP to the ground station modem well. But I suspect my Paparazzi configuration still not good because it seems it cannot read the informations and show them in GCS… 

I continue my exploration, any advices welcome !
Thanks for the support
Best regards

Le 25 juil. 2014 à 18:14, Gautier Hattenberger <address@hidden> a écrit :


Did you check this pages ? :


Le 24/07/2014 14:52, Nicolas Quendez a écrit :

Hi everybody,

I just begin to manipulate Paparazzi hardware and software. 

For now : 
- I succeed in working with flight plan simulation
- I succeed in uploading software into my Lisa M AP 
- I succeed into programming my Xbee modules with XCTU (windows) with the PPZUAV FDTI utility board. 

BUT : 
when I plug the FTDI board with xbee module (coordinator) by USB on my ubuntu computer, I have the following error when starting a session : 
Failure("Error opening modem serial device : fd < 0 (/dev/ttyUSB0) ») : 

RUN '/home/nicolas/paparazzi/sw/ground_segment/tmtc/link -d /dev/ttyUSB0 -transport xbee -s 57600'
Failure("Error opening modem serial device : fd < 0 (/dev/ttyUSB0)")
Broadcasting on network, port 2010
 Read Socket : Connection reset by peer
FAILED '/home/nicolas/paparazzi/sw/ground_segment/tmtc/link' with code 1

I have checked with dmesg that /dev/ttyUSB0 seems to be the good place for the board.
I have added the current user  to the modems group as explained in the FAQ ( 
I made the xbee module set as coordinator, with baud rate set to 57000 
My Xbee is a 868 LP 80 K modem. 

On the PPZUAV FTDI board the red led is ON. 
The green led is ON (but not flashing).

Have you any idea of my mistake, or configuration that I did not do ? Are there some drivers to install for the FTDI board, or a configuration to put into the xml files ? 

Thanks in advance
Best regards

Hardware : 
<Pièce jointe.jpeg>

XCTU configuration : 

<Pièce jointe.gif>

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