Re: [Paparazzi-devel] GSC --> A/P telemetry

[Gareth Roberts]

Hi Limaiem,

You shouldn't need xbee_api to achieve bi-directional communication.
http://paparazzi.enac.fr/wiki/Subsystem/telemetry#Configuring_The_Serial_Protocol

Have you checked all your hardware connections?
Cheers,
--G

On Sat, 03 Mar 2012 11:40:19 -0000, limaiem imed <address@hidden> wrote:

> does it mean that I should use xbee_api telemetry type to get  
> bidirectional
> communication ?
> in my modem firmware the api mode was turned off
>
> thanks all,
>
> *<subsystem name="telemetry"
> types="transparent|xbee_api|transparent_usb">*
>
>
> Imed LIMAIEM
> address@hidden
>
>
> On Mon, Feb 27, 2012 at 9:36 PM, Roman Krashanitsa <
> address@hidden> wrote:
>
> > Also, your xbee modems should be configured for using xbee API
> > communication mode. The configuration string is usually in the framework
> > donfig file, but it can also be done manually and stored in the modems.
> >
> > Looks like right now they work in serial mode.
> >
> > 2012/2/27 Gareth Roberts <address@hidden>
> >
> > > Hi Imed,
> > >
> > > If flipping the modems around didn't solve the problem, the modems  
> > > should
> > > be correctly configured for bi-directional transmission.
> > > Which telemetry file are you using, as there are issues with xbee 868s
> > > related to regulatory demands - specifically, them switching off after  
> > > 6
> > > minutes.
> > > See  
> > > http://paparazzi.enac.fr/wiki/**868MHz_Issues<http://paparazzi.enac.fr/wiki/868MHz_Issues>
> > >
> > > Have you checked your hardware connections between the modem & the
> > > autopilot, specifically the TX output of the xbee (RX on the UART)?  If
> > > this cable were not connected, you'd get the symptoms you describe.
> > >
> > > Cheers,
> > > Gareth
> > >
> > >
> > > On Sun, 26 Feb 2012 18:31:34 -0000, limaiem imed <address@hidden>
> > > wrote:
> > >
> > >  Hi all,
> > > > my setup is:
> > > >
> > > >   - yapa2
> > > >   - xbee868
> > > >   - ublox
> > > >   - IR Sensors
> > > >
> > > >
> > > > I am compiling paparazzi with standard XML inputs:
> > > > *- tunning_infrared.xml
> > > > - iridium.xml*
> > > >
> > > >
> > > > the telemetry is working fine from the A/P to the GSC during the fly
> > > > however it does not work from the GSC to the A/P. For example, I  
> > > > wanted
> > > > to
> > > > modify some PID parameters (p_gain) and so but nothing occurs when I
> > > > commit
> > > > the changes from the GSC. In addition I can not change the A/P mode  
> > > > from
> > > > the GSC. My question is the following, how can I debug this problem  
> > > > can I
> > > > print some debug message to understand if it is a hardware or a  
> > > > software
> > > > problem (I tried to switch the position of the modems but nothing
> > > > changed)?
> > > > could this be a problem in the configuration of the modems ?
> > > >
> > > > thanks all.
> > > >
> > > > regards,
> > > >
> > > > regards,
> > > >
> > > >
> > > > Imed LIMAIEM
> > > > address@hidden
> > >
> > > ______________________________**_________________
> > > Paparazzi-devel mailing list
> > > address@hidden
> > > https://lists.nongnu.org/**mailman/listinfo/paparazzi-**devel<https://lists.nongnu.org/mailman/listinfo/paparazzi-devel>
> >
> >
> > _______________________________________________
> > Paparazzi-devel mailing list
> > address@hidden
> > https://lists.nongnu.org/mailman/listinfo/paparazzi-devel