Re: [Paparazzi-devel] Paparazzi Stand Alone GPS also known as GPS13 not working

[Joseph Muhlhausen]

Hi David,

Good to know that you can make new boards if needed. For the time being I have 
ordered a ublox neo m8n.

I still want to find out what went wrong to prevent from happening again. 

-It looks like I get 5v on the TX and 3.3V on the RX line. Is this normal? 

-Also no current is drawn from the module

The gps module didn't seem to help unfortunately.

Best,
Joseph




> On Jan 14, 2015, at 4:48 PM, David Conger <address@hidden> wrote:
> 
> Hello,
> 
> I see, well, yes, I am still away on a long overdue break. Honestly if
> someone really needed some boards made I could work with a supplier to
> get them assembled. It would just mean they add their markup to the
> whole lot but I would be glad to help someone get what they needed
> even while I'm away.
> 
> Yes, the old designs are still relevant and there is no reason that
> board should just stop working other than I have seen them revert to
> 9600bps and the standard settings before. Charging the cap won't reset
> the paparazzi settings back into it which is why I suggested using the
> module in your airframe file. Even with no cap or a depleted cap it
> should power up and work.
> 
> Have you used the tunnel before? Which autopilot do you have? I'lll
> walk you through it if you like or call me I'll send you my phone
> number and I can walk you through  it. I just am not sure if you've
> done it before so I don't want to assume your level of experience with
> these things.  The "Tunnel" is invaluable to me. That's still what I
> do after all these years to test GPS after assembly.
> 
> If the instructions online are unclear let me know I've done it a
> million times. I just don't have the computer I used in front of me
> ATM.
> 
> -DC
>> On 1/14/15, Joseph Muhlhausen <address@hidden> wrote:
>> Hi David,
>> 
>> Yes I believe you made that board and since you are on leave no one is
>> making it anymore ...
>> 
>> I have left the GPS aside for a couple of months and it may well be, as you
>> mentioned, an empty capacitor.
>> 
>> I will power the GPS for half a day and see if it helps. I will also try
>> the module. So far I have had no luck with u-center via FTDI.
>> 
>> Best,
>> Joseph
>> 
>> On Tue, Jan 13, 2015 at 4:34 PM, onefastdaddy <address@hidden>
>> wrote:
>> 
>>> Hello,
>>> 
>>> I probably made that board. :)
>>> 
>>> First thing that comes to mind is the small cap drained completely. A
>>> very
>>> good Engineer friend told me that cap takes a long time to charge. Hours
>>> (FWIW).
>>> 
>>> Possibly the module reset to the factory defaults (9600bps). Have you
>>> tried
>>> Loading the "tunnel" program into the autopilot and using u-center?
>>> 
>>> Quick test could be just set the bps to 9600 for the gps in the airframe
>>> file or set the u_center module up. Let me dig in the Wiki for that...I
>>> think this is the page:
>>> http://wiki.paparazziuav.org/wiki/Gps#Automatic_Configuration_at_Startup
>>> and
>>> http://wiki.paparazziuav.org/wiki/Module/GPS_UBlox_UCenter
>>> and
>>> http://wiki.paparazziuav.org/wiki/Airframe_Configuration <-- look for GPS
>>> in
>>> the page
>>> 
>>> The gps module will let you setup the GPS again from the autopilot.
>>> Granted
>>> I'm not completely sure the exact way it works but what I do is in GCS
>>> after
>>> launching it go into settings and find the gps module and check the box
>>> and
>>> upload (green checkbox)...this enables the module which seems to do the
>>> magic required. The module is really for GPS boards without a .2F cap
>>> that
>>> lose their minds after power down. But in this case give it a go.
>>> 
>>> The good news is likely all is fine. One thing I've learned after all
>>> these
>>> years (8 now) of assembling Paparazzi things, and using them myself, they
>>> are durable and actually quite hard to kill. Non Paparazzi designed
>>> things
>>> from 3rd parties are not so durable IMHO and experience.
>>> 
>>> Let me know if that sorts it out...
>>> 
>>> David
>>> 
>>> 
>>> 
>>> --
>>> View this message in context:
>>> http://lists.paparazziuav.org/Paparazzi-Stand-Alone-GPS-also-known-as-GPS13-not-working-tp16598p16637.html
>>> Sent from the paparazzi-devel mailing list archive at Nabble.com.
>>> 
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> 
> 
> -- 
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> http://www.ppzuav.com
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