Re: [Paparazzi-devel] Problem executing firmware on YAPA after uploading

[Felix Ruess]

Hi Jorn,

Failure("Error opening modem serial device : fd < 0 (/dev/ttyUSB0)")
doesn't mean that your modem is not sending data, but that there is no
serial device under the name /dev/ttyUSB0 (might e.g. be /dev/ttyUSB1)
See 
http://paparazzi.enac.fr/wiki/FAQ#How_do_I_check_if_my_telemetry_is_working.3F

Regarding the untrusted packages:
The packages in the ENAC Ubuntu repository are mostly not signed, for
the ones that are you don't have the key....
You can add the paparazzi PersonalPackageArchive ppa:paparazzi-uav/ppa
where all packages are signed and the key automatically added when you
add the ppa.

Cheers, Felix

On Thu, Dec 1, 2011 at 12:46 AM, Jorn Anke <address@hidden> wrote:
> If the GCS returns Failure("Error opening modem serial device : fd < 0
> (/dev/ttyUSB0)") it means that your modem is not sending data ! are you sure
> that your modem is correctly wired and your code is correctly programmed ?
>
> I am actually not sure of anything. The only thing I know is it appears to
> be working when uploading firmware, but not when executing the firmware on
> the ap a moment later. When it comes to the code, I do not think it is
> correctly programmed at this point. I did however non anticipate that a
> programming error would result in an error message related to the usb
> connection. But I may have been wrong about this?
>
> Is your autopilot working as expected ? I think that in YAYA2 you should see
> the green led flashing in your board when the model is trying to talk ...
>
> If I connect the usb cabe first, the ap remains black. If I connect the
> battery before the usb, there is a orange light which stays firm- and a red
> light which blinks.
>
>
>
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