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Re: [Paparazzi-devel] GPS not working

From: Christophe De Wagter
Subject: Re: [Paparazzi-devel] GPS not working
Date: Thu, 5 Apr 2012 13:42:40 +0200

Hi Felix. 

It disables the UTM and enables LLH so the "normal" driver can be used on "old" configured GPS's. 

But I do not remember that it sets 3D, SBAS and 2G airborne. I was planning to do that, based on the rotorcraft (pedestrian?) /fixedwing (4G-airborne) and also depending on the version Ublox4 -> NAV2_MSG Ublox5/6 -> NAV5_MSG but as far as I remember that was not done yet....


On Thu, Apr 5, 2012 at 10:56 AM, Felix Ruess <address@hidden> wrote:
Hi Christophe,

I added a link to GPS subsystem page and some more info to the GPS_UBlox_UCenter module page

If you use it for an old Lea4P, it disables the UTM message, so you have to use the normal <subsystem name="gps" type="ubx"/>
It does change the filter to Airborne 2g, enable SBAS and set it to 3D fix only.

Is that correct so far? If not please update the wiki.

Cheers, Felix

On Thu, Apr 5, 2012 at 8:49 AM, Christophe De Wagter <address@hidden> wrote:

If you have a ublox I would recommend to use 

  <load name="gps_ucenter.xml" />

This module has auto-baudrate, and configures all message rates and communication ports. (it does not change the filter mode, or functional GPS settings, only communication stuff: so it is always safe to use). 

The module will send a DEBUG message that indicates the firmware version in your GPS, the previously selected GPS baudrate and the current (38k4).


On Tue, Apr 3, 2012 at 5:32 AM, Jaime Rubio <address@hidden> wrote:

Trying to get my RC working I have noticed that I cannot switch modes. Once I open the ground control station, it always stays as auto 2. I think this may be related to the fact that it doesn't identify any GPS signal and it works in a kind of failsafe mode automatically, can this be the reason? There is also an error in the Paparazzi Center saying "Unix.Unix_error(2, "read", "")". How can I get my GPS working? I have configured it with U-center and everything is ok, however, it never works when connected to Yapa.


Jaime Rubio
Autopilot Team Lead

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