Re: [Paparazzi-devel] telemetry not working

[Felix Ruess]

Hi Adrien,

The default baud rate for the modems is set to 57600 Baud. If you use
a different baudrate you have to define that in your airframe file.
See http://paparazzi.enac.fr/wiki/Airframe_Configuration#Telemetry_.28Modem.29

So the baudrate of your xbee connected to your airframe has to match
the one set in your airframe file, and the modem connected to your
ground laptop has to match the one of the Data Link in Paparazzi
Center.
You can set the baud rate for the link agent by just adding the
parameter -s 9600 to the line of the datalink, then restart the link
and save the session so you don't have to set this every time.

Cheers, Felix

On Mon, Mar 28, 2011 at 5:45 PM, Adrien Fallou <address@hidden> wrote:
> Hi everybody,
>    I've been trying to get paparazzi working for some weeks now. I'm using a
> PPZUAV tiny 2.11 board with FTDI utility board, with Xbee pro Znet 2.5
> upgraded to Xbee pro ZB through X-CTU, and Paparazzi running on Ubuntu Lucid
> Lynx (10.04)
>     I have flashed both parts of the modem using X-CTU, set the baud rate to
> 9600, and checked that the airframe is correctly configured. As I wanted to
> be sure of that, I also tried with the funjet_example airframe, which
> matches my hardware, but still have the same issue.
>     Using the X-CTU terminal, I have checked that the two parts of the modem
> communicate : I do receive the messages I'm sending through one of them with
> the other one.
>
>      My problem is that when running paparazzi, I get a blank GCS, and no
> messages, but I don't get any error. I have read that this could be because
> it is waiting for a telemetry signal, but I don't understand why it's not
> getting any. As I don't have any blinking LED on any part of the modem, it
> seems that paparazzi is not able to communicate with it. Do you have any
> idea why ?
>    Thanks for your answers,
> Adrien
> _______________________________________________
> Paparazzi-devel mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>
>