Re: [Paparazzi-devel] Help writing new messages into the code

[Pascal Brisset]

Hi,

when a message XXXX is defined in the telemetry class of the 
conf/messages.xml file, a new macro

   DONWLINK_SEND_XXXX(...)

is generated in var/include/messages.h (note: this file is currently NOT 
generated from the Paparazzi Center; if messages.xml is modified, a 
"make" has to be done from the paparazzi3 directory).
This macro (with its appropriate arguments) can be called anywhere in 
the the autopilot code.
If a periodic sending of the message is desired:
- an entry has to be added in the used telemetry configuration file 
(conf/telemetry/....xml)
- a PERIODIC_SEND_XXXX() macro (with no arguments) has to be defined 
somewherein the code, usually in sw/airborne/ap_downlink.h : So it may 
look like

   #define PERIODIC_SEND_XXXX() DONWLINK_SEND_XXXX(&arg1, &arg2, ...)

--Pascal

Todd Sandercock wrote:
> Hey all
>
> I follow the wiki on adding new messages but all i get is and error : 
> "warning: implicit declaration of function ‘PERIODIC_SEND_XXXX'"
> What am i doing wrong?
>
> Todd
>
> ----- Original Message ----
> From: Yves Touchette <address@hidden>
> To: address@hidden
> Sent: Monday, 31 March, 2008 1:05:58 PM
> Subject: RE: [Paparazzi-devel] Help writing new messages into the code
>
> Todd,
>
> There is an article in the wiki about just that subject, have you seen it?
>
> Just in case, here's the link: 
> http://paparazzi.enac.fr/wiki/index.php/DevGuide/Communications
>
> Regards,
>
> -yvest
>
>
>
>     ------------------------------------------------------------------------
>     Date: Sun, 30 Mar 2008 18:13:19 -0700
>     From: address@hidden
>     To: address@hidden
>     CC:
>     Subject: [Paparazzi-devel] Help writing new messages into the code
>
>     Hey there
>     Would anyone out there be able to help me get my head around
>     adding new functions and messages to the airborne side of the
>     paparazzi code. I would like to be able to send a few more
>     messages down from the aircraft and also call some of my
>     own functions from the ground. I have been studying the code for a
>     while trying to work my way through how it all works. i just can't
>     get how everything connects compiling wise with the ground station.
>     Any help would be greatly appreciated
>     Thanks
>     Todd
>
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