Re: [Paparazzi-devel] Encoder setup procedure

[Felix Ruess]

Hi Adam,

maybe I can help out a bit... I had some strange issues with the ppm
encoder as well, I played with the settings of the encoder and
reflashed it myself. But to be honest I still don't know what the
original problem was.

1) The flag -DRADIO_CONTROL_TYPE=RC_FUTABA is not used anymore,
instead you have to set the pulse_type attribute in your radio.xml.
    See http://paparazzi.enac.fr/wiki/Radio_Control
    The ppm encoder hasn't been updated to reflect that... hendrix?

The rest of the setup sounds good to me.
You might want to play with the ppm encoder source and the sync pulse
configuration there and reflash the ppm encoder. I guess that is what
did the trick for me.
I'm not saying that is the definitive way to fix your problem ;-)

Cheers, Felix


On Tue, Aug 10, 2010 at 1:22 PM, Adam Amos
<address@hidden> wrote:
> Hi All,
>
> I am having major issues getting my encoder to work. This is my process for
> setting up the encoder, can anybody see what i am doing wrong?
>
> Software:
>
> 1) Airframe.xml make file section include:
> Code:
> ap.CFLAGS += -DRADIO_CONTROL -DRADIO_CONTROL_TYPE=RC_FUTABA2) Radio.xml file
> include all eight channels my file
> 2) radio.xml file function names match those defined in airframe.xml
>
> Hardware:
> 1) Remove JP1 to power servos & receiver from external power supply.
> 2) Observe 3Hz blinking LED when all 8 connections are made from the
> receiver to the encoder.
> 3) Observe 1Hz blinking LED when a receiver connection is removed.
>
> Results:
> 1) No values appearing the RC messages and obviously no manual RC control
> see attached image RC.png
> 2) Values appearing and updating with RC inputs (controller stick movement)
> in the PPM messages tab see attached image PPM.png
>
> Anybody see anything? I have been stuck on this one for ages lol.
>
> -Adam
>