Re: [Paparazzi-devel] GPS not working

[Chris Wozny]

My apologies, I linked the wrong file and also misspoke. My Xbee 900
MHz uses a 57,600 baud rate.

https://github.com/cwozny/paparazzi/blob/dev/conf/airframes/UniversityOfArizona/mini_vertigo_az_new.xml

- Chris

On Wed, Apr 4, 2012 at 1:42 PM, Chris Wozny <address@hidden> wrote:
> Jaime,
>
> The modem and GPS do not have to have the same baud rates to
> communicate. My uBlox LEA-5H receiver uses 38,400 baud rate and my
> Xbee 900 MHz modem uses a 9600 baud rate and I can communicate with
> the aircraft and see it's location. Here is my airframe file:
>
> https://github.com/cwozny/paparazzi/blob/dev/conf/airframes/UniversityOfArizona/MV2_Lisa2.xml
>
> - Chris
>
> On Wed, Apr 4, 2012 at 1:38 PM, Jaime Rubio
> <address@hidden> wrote:
>> I tried that and it is not working yet. I have configured my GPS with
>> Ucenter and everything is ok, I set a baud rate of 38400 and I modified the
>> airframe file accordingly. However, for my modems I have 9600 as baud rate
>> (same as for session). This could be the reason? They all (modems and GPS)
>> have to match at the same baud rate?
>>
>> By the way, is this connection right? It matches tx of autopilot with rx in
>> the GPS and the other way around.
>>
>> Thanks,
>>
>>
>> On Mon, Apr 2, 2012 at 11:57 PM, Romney, Jefferson S <address@hidden>
>> wrote:
>>>
>>> Okay you are using exactly what I was until My GPS broke. Yes the
>>> subsystem is in the airframe file.
>>>
>>>     <subsystem name="gps" type="ublox">
>>>       <configure name="GPS_BAUD"          value="B38400"/>
>>>     </subsystem>
>>> this should be what it says but change the baud to whatever yours is.
>>> Ucenter should tell you what baud rate it is talking at.  One thing I didn't
>>> like about the PPZUAV's GPS 13 board is it's lack of an led to tell you when
>>> it has lock. If you are getting lock on U-center and this code doesn't work,
>>> then I'm not sure what the problem is. I could look into it though.
>>> ________________________________
>>> From: address@hidden
>>> address@hidden on behalf of Jaime
>>> Rubio address@hidden
>>> Sent: Monday, April 02, 2012 9:48 PM
>>> To: address@hidden
>>> Subject: Re: [Paparazzi-devel] GPS not working
>>>
>>> The subsystem is loaded through the airframe file, isn't it? About the
>>> baud rate, I should review how to do it. I am using a Ublox (LEA 6H mounted
>>> on a Paparazzi 13 board). About the PPM, we have checked the order several
>>> times and it seems to work properly, the only problem is that we cannot
>>> switch to manual mode to fully testing it.
>>>
>>> Thanks,
>>>
>>> Jaime.
>>>
>>> On Mon, Apr 2, 2012 at 11:43 PM, Romney, Jefferson S <address@hidden>
>>> wrote:
>>>>
>>>> Jaime, I have had a few of the same problems with my yapa and GPS. for
>>>> GPS, i would check your baud rate and make sure the correct subsystem is
>>>> loaded. what type of GPS are you using?  as for the RC, I would check your
>>>> PPM and make sure that is changing like it should. an o-scope is probably
>>>> the easiest way to do that. if the PPM signal is changing correctly check
>>>> your RC file and make sure everything is in the proper order.
>>>> ________________________________
>>>> From: address@hidden
>>>> address@hidden on behalf of Jaime
>>>> Rubio address@hidden
>>>> Sent: Monday, April 02, 2012 9:32 PM
>>>> To: address@hidden
>>>> Subject: [Paparazzi-devel] GPS not working
>>>>
>>>> Hello,
>>>>
>>>> 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.
>>>>
>>>> Thanks,
>>>> --
>>>> Jaime Rubio
>>>> Autopilot Team Lead
>>>> Phone: 386-383-2738
>>>> e-mail: address@hidden
>>>> _______________________________________________
>>>> Paparazzi-devel mailing list
>>>> address@hidden
>>>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>>> --
>>> Jaime Rubio
>>> Autopilot Team Lead
>>> Phone: 386-383-2738
>>> e-mail: address@hidden
>>> _______________________________________________
>>> Paparazzi-devel mailing list
>>> address@hidden
>>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>> --
>> Jaime Rubio
>> Autopilot Team Lead
>> Phone: 386-383-2738
>> e-mail: address@hidden
>> _______________________________________________
>> Paparazzi-devel mailing list
>> address@hidden
>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel