Re: [Paparazzi-devel] PPM Encoder and Lisa/L

[Felix Ruess]

Two channels can't have the same name, just name them UNUSED1, UNUSED2, ...
Also see http://paparazzi.enac.fr/wiki/Radio_Control

Cheers, Felix

On Fri, Nov 18, 2011 at 10:39 AM, Jochen Rieger <address@hidden> wrote:
> Ok thanks, now i have added the additional channelns in the radio file likre
> this:
>
> <!DOCTYPE radio SYSTEM "radio.dtd">
> <radio name="Futaba_6J" data_min="900" data_max="2100" sync_min ="5000"
> sync_max ="15000" pulse_type="POSITIVE">
>  <channel ctl="1" function="ROLL"     min="2000" neutral="1500" max="1000"
> average="0"/>
>  <channel ctl="2" function="PITCH"    min="2000" neutral="1500" max="1000"
> average="0"/>
>  <channel ctl="3" function="THROTTLE"      min="2000" neutral="1498"
> max="1000" average="0"/>
>  <channel ctl="4" function="YAW" min="2000" neutral="1120" max="900"
> average="0"/>
>  <channel ctl="5" function="MODE"    min="2000" neutral="1500" max="1000"
> average="1"/> <!-- center slider        -->
>  <channel ctl="6" function="UNUSED"     min="2000" neutral="1500" max="1000"
> average="0"/> <!-- Top right switch     -->
> <channel ctl="7" function="UNUSED"     min="2000" neutral="1500" max="1000"
> average="0"/>
> <channel ctl="8" function="UNUSED"     min="2000" neutral="1500" max="1000"
> average="0"/>
> </radio>
>
> but now while building the firmware, the follow warning is shown
>
> /home/amfis/paparazzi/var/Maja/generated/radio.h:26:1: warning:
> "RADIO_UNUSED" redefined
> /home/amfis/paparazzi/var/Maja/generated/radio.h:24:1: warning: this is the
> location of the previous definition
>
> Are the dummy channel right define?
>
> With this building, it doesnt running still.
>
>
> Regards.
> Jochen
>
> 2011/11/18 Christophe De Wagter <address@hidden>
>>
>> The radio file should correspond to the summed pulses arriving at the
>> autopilot:
>> -in case of analog 35MHz receivers it is the RC - TRANSMITTER that makes
>> the pulse train (receiver only does RF part)
>>    => radio file depends on transmitter, you could swap to another
>> receiver (and e.g. you can use a 4channel receiver to receive 9 pulses :-) )
>> -in case of digital receivers it is not the transmitter but the receiver
>> that makes the pulses
>>    => e.g. Futaba Fasst 6017: you can use any compatible transmitter
>> without need to change the radio file
>> -in case of an encoder it is the encoder that makes the summed pulse
>>    => if the encoder software makes 8 pulses, even with a 5 channel RC
>> connected paparazzi will get 8: so the radio file should read 8
>> -Christophe
>>
>>
>>
>> On Fri, Nov 18, 2011 at 10:13 AM, Felix Ruess <address@hidden>
>> wrote:
>>>
>>> But since the 8 channel PPM encoder actually always outputs 8
>>> channels, you have to define 8 channels in your radio.xml file like in
>>> the example on the wiki.
>>>
>>> Cheers, Felix
>>>
>>> On Fri, Nov 18, 2011 at 10:03 AM, Jochen Rieger <address@hidden>
>>> wrote:
>>> > In the radio file is also just configure 6 channels(6 channel
>>> > receiver). I
>>> > wanted just say that is the 8 channel PPM encoder from Hendrix.
>>> >
>>> > -Jochen
>>> >
>>> > 2011/11/18 Christophe De Wagter <address@hidden>
>>> >>
>>> >> You have 6 zero's in the rc-message view, while the encoder sends 8
>>> >> channels? That sounds like a radio.xml not being compatible with the
>>> >> number
>>> >> of pulses?
>>> >> Note that paparazzi PPM reading is very selective. This dates from the
>>> >> time where everyone was using 35MHz. If 2 transmitters were on the
>>> >> same
>>> >> frequency, you wanted to be sure that paparazzi would not accept this
>>> >> corrupted signal.
>>> >>
>>> >> -Christophe
>>> >>
>>> >>
>>> >>
>>> >> On Fri, Nov 18, 2011 at 8:33 AM, Jochen Rieger
>>> >> <address@hidden>
>>> >> wrote:
>>> >>>
>>> >>> Hello,
>>> >>>
>>> >>> i have a problem with the PPM at Lisa/L. I can see an signal at PPM
>>> >>> output of the 8 Channel PPM Encoder Version 2, that seems to be a PPM
>>> >>> signal(measured with scope). The input port of the PPM signal is the
>>> >>> Trig.
>>> >>> port of UART1 at Lisa/L (pin 1).
>>> >>> But when I set the tele_FBW to 1 in GCS. I see only 0,0,0,0,0,0  in
>>> >>> the
>>> >>> value message window.
>>> >>>
>>> >>> I have setup the radio file like the wiki. The right pulse_type and
>>> >>> the
>>> >>> right numbers of input channelns.
>>> >>> Have anyone an idea?
>>> >>>
>>> >>> Best regards.
>>> >>> Jochen
>>> >>>
>>> >>> _______________________________________________
>>> >>> Paparazzi-devel mailing list
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>>> >>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>>> >>>
>>> >>
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