| Marko
The new satellite code has been committed. Would be great If you gave it a whirl. You can use 1 or 2 satellites. It works with all the 5,6,7,9 & 12 channel transmitters I could get my hands on.
If you use two satellites you are going to have to have some ugly wiring as UART5 pin is currently used by the imu. So to begin with try with only one. You no longer have to create a header file for whatever Spektrum/Jr transmitter you have and you can use up to 12 channels. All you need do is connect your receiver to lisa and bind it on lisa (to do this you need to connect pin PC3 on the ADC connector to ground while you power up your lisa the process from then is the same as when you bind any spektrum receiver) .
Hopefully you are using the new XML makefile section for your airframe. Here is the firmware section of my airframe to get you started. If you get this working and really want to try two receivers I can explain that to you too.
<firmware name="rotorcraft"> <target name="ap" board="lisa_l_1.0"> <define name = "RADIO_CONTROL_MODE" value = "RADIO_CONTROL_AUX2"/> <define name = "RADIO_CONTROL_KILL_SWITCH" value = "RADIO_CONTROL_GEAR"/> </target> <subsystem name="radio_control" type="spektrum"/> <subsystem name="actuators" type="heli"/> <subsystem name="imu" type="b2_v1.1"/> <subsystem name="gps" type="ublox"/> <subsystem name="ahrs" type="cmpl"/> </firmware>
You can change the allocation of your switches any of the following are valid choices (as long as they exist on your transmitter we can't yet make a 7 channel transmitter into a 9 channel)
RADIO_CONTROL_GEAR RADIO_CONTROL_FLAP RADIO_CONTROL_AUX1 RADIO_CONTROL_AUX2 RADIO_CONTROL_AUX3 RADIO_CONTROL_AUX4 RADIO_CONTROL_AUX5 RADIO_CONTROL_AUX6 RADIO_CONTROL_AUX7
Hopefully that should be enough to get you going.
Eric
On 20/08/2010, at 7:21 PM, Marko Thaler wrote: Hi Reto, Thanks for the info. Cheers, Marko On Aug 20, 2010, at 11:29 AM, Reto Büttner wrote: Hi Marko,
there is some information on the Wiki:
http://paparazzi.enac.fr/wiki/Hardware_Installation#Radio_Devices
http://paparazzi.enac.fr/wiki/Hardware_Installation#General_Electrical_Advice
Cheers, Reto
2010/8/20 Marko Thaler <address@hidden>:
Hello Joe,
All antennas are outside the frame. My comment about carbon fiber vs.
aluminum was meant in terms of a better grounding plane. Since I am a
mechanical engineer/ control systems guy I apologize for my ignorance about
RF attenuation and antenna grounding.
Can someone recommend a good overview resource about ground planes and RF
attenuation for non electrical engineering folks?
Thanks for your help and kind regards,
Marko
On Aug 20, 2010, at 9:17 AM, Gisela Noci wrote:
mmm, Thats even worse than carbon! Any metal is a better shield to RF than
carbon. Better get ALL antenna outside the frame!
Joe
________________________________
From: address@hidden address@hidden
on behalf of Marko Thaler address@hidden
Sent: Thursday, August 19, 2010 9:38 PM
To: address@hidden
Subject: Re: [Paparazzi-devel] Spektrum Satellite dropping connection
Hello Todd,
Thanks for the reminder about carbon. Luckily, we are using laser cut
aluminum plates for the frame.
Kind regards,
Marko
On Aug 19, 2010, at 12:52 AM, Todd Sandercock wrote:
Also watch out for your standard issues that occur with spektrum and carbon.
Todd
On 19/08/2010, at 3:19 AM, Marko Thaler <address@hidden> wrote:
Hello Eric,
Thank you for the information and for writing a new parser. I am looking
forward to test the new code.
Kind regards,
Marko
On Wed, Aug 18, 2010 at 7:00 PM, Eric Parsonage <address@hidden> wrote:
Hi Marko
There is a bug in the current parser for both lisa and booz when using a
satellite receiver. I believe that the behaviour you are seeing is due to
this bug.
I am currently in the process of writing code to support a pair of
satellite receivers (on lisa) . Hopefully this will be ready in the next few
days.
Regards
Eric
On 19/08/2010, at 2:09 AM, Marko Thaler wrote:
It would be nice to use the main unit and the Satellite together, but at
the moment Lisa/L only supports the use of the Satellite RX with it`s serial
communication protocol. Thanks anyway!
On Wed, Aug 18, 2010 at 6:24 PM, Edixon
Giraldo <address@hidden> wrote:
I was experiencing similar problems with a Spektrum AR7000 Rx. The
reason it was happening to me was because I disconnected the satellite Rx
and was using just the main unit. As soon as I reconnected the satellite, I
never lost connection anymore. I don't know if that is your case, but,
check it out.
________________________________
Date: Wed, 18 Aug 2010 18:11:18 +0200
From: address@hidden
To: address@hidden
Subject: [Paparazzi-devel] Spektrum Satellite dropping connection
Hello everybody,
My setup is Lisa/L with Spektrum Satellite receiver and Futaba T9CP with
Spektrum DSM2 transmitter module. For telemetry I am using 2.4GHz XBee Pro
Series 2 modules.
After a couple of hours of setting up and testing all the systems I have
started to notice the RC link was constantly dropping connection. When the
problem started to occur the quad battery voltage was 11.4V and the
transmitter was at 9.4V. The funny thing is that when I was moving the
sticks the link was solid. However, when there was no stick movement the
connection was dropping out (switching between OK, LOST and REALLY_LOST). I
have reset the board a couple of times and the problem was reproducible.
Has anybody experienced anything similar? What is your experience with
Spektrum system and possible XBee interference (both 2.4GHz)?
I have just recently switched to Spektrum modules because of Lisa/L
support. Previously I was using Jeti Duplex which was rock solid.
Thank you for your help.
Kind regards,
Marko
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