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[Paparazzi-devel] telemetry doesn't work


From: arnaud dumas
Subject: [Paparazzi-devel] telemetry doesn't work
Date: Mon, 18 Apr 2011 20:38:44 +0200

Hi every body, 

my name is arnaud and I'm new to the community

I have the GSC blank problem with the following materials

tiny 2.11
XBEE pro ZB 24
LEA5H
Lucid (10.04)

The modems are configured at Baudrate 9600. I have checked the Pan id (1 for both) and Node identifier (PPRZ_GROUND and PPRZ_AIRBORNE)
I'm sure the modems are working because I tested them with X-CTU terminals on two laptops and what I wrote in one terminal appeared the the other one in both ways.

I have tested with the default tinyFw.xml airframe (in Reorg code) which matches the modems configuration (pprz transparent, B9600). There are no problems in building and uploading. 
But when I execute, I don't see any blinking of the LED on Ground Modem and testing with X-CTU after execution, I don't receive anything from airborne modem. And the GCS is blank.

I suppose the telemetry (ie messages emitted by the airborne module) doesn't work, but I have no idea why. 

I have several questions which may help to understand where the pb lies.

1/ What happens exactly in first after execution? (I believe there is exchange procedure between the two modems)

2/ What contain telemetry messages?

3/ Is it necessary to have a complete matching between airframe and hardware in the sense of : if a servo is not connected, or the engine, (for tests) could it raise a blank pb?

4/ Where are used the names PPRZ_GROUND and PPRZ_AIRBORNE that I entered during modems flashing? 

Thanks for your help,

Arnaud






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