PXX work

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ShowMaster
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Re: PXX work

Post by ShowMaster » Wed May 09, 2012 1:54 pm

I'm sorry if this is a redundant question but here goes.
I think PXX is like model match?
I think it's working OK?
I don't want Frsky's FW but instead eraz's?
Those using it have had no link loss or control issues?
I want to use it?
Many at my club come to me for the latest progress on all the new options they get if they "come to our side" and I don't want to be misinformed so I ask.
Things move so fast in the 9x world here.
SM


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Re: PXX work

Post by MikeB » Wed May 09, 2012 3:31 pm

PXX will support model match, but it doesn't at present. I've used it indoors withoout any problems.
As the existing FrSky firmware does not support the non-telemetry receivers when you program the Tx module to use PXX, I haven't done any testing outdoors, I need to be able to use both types of receiver.
We are waiting for FrSky to come up with a new firmware for the Tx module. I understand it will allow model match, as well as software seletctable receiver type.

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Rob Thomson
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Re: PXX work

Post by Rob Thomson » Wed May 09, 2012 3:52 pm

I have been flying PXX for the past month or so - 2.5m gliders.

No problems at all. I guess you could say that at the current point it is stable.

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Re: PXX work

Post by Kilrah » Wed May 09, 2012 4:39 pm

...but of limited use, and it will certainly go back to "beta" when the new features are added :D

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Re: PXX work

Post by wallaguest1 » Wed May 09, 2012 7:46 pm

at the actual state it support multiple bind to get 16 ch from the same module and two receivers ?


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Re: PXX work

Post by Kilrah » Wed May 09, 2012 8:30 pm

No. That requires receiver support, and FrSky still haven't done that.

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Re: PXX work

Post by marcioh » Fri Jun 15, 2012 1:08 pm

hi, I don´t remember where I read this (or maybe I dreamed) , but wouldn´t pxx add suport for telemetry without doing the hardware telemetry mods ?
I flashed the module with it but still get no data if I disconnect the serial cable.

Is it normal to lose the rxs bind every time I flash the module?

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Re: PXX work

Post by MikeB » Fri Jun 15, 2012 1:50 pm

No, PXX is a data out to Tx module format, instead of PPM. There is no data flow the other way.

No, I don't loose binding (FrSky DJT Tx and D8R-II Rx).

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Re: PXX work

Post by MGeo » Sat Jul 28, 2012 11:12 am

Hello,

Has anyone heard of any PXX updates?

Thanks,
George

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Re: PXX work

Post by Rob Thomson » Sat Jul 28, 2012 11:49 am

Nope. Not sure much more will be done until the x12d is launched!


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Re: PXX work

Post by EvaLiu » Tue Sep 11, 2012 8:41 am

Quick update that prototype for X9D radio (with JR type slot) will be ready in one month or so, and delivery to 9x community will be arranged then. (In fact, we purchased a ready-made mould for X9D radio, meanwhile made modification and improvement based on market options and preference. The following X12D and X16D radio moulds are independently developed by FrSky.)

D16 module and receiver will be ready almost at the same time.

D16 module:
Two selectable modulations: PXX (mode selection, bind, model match, range check, failsafe, etc. on radio side) or CPPM
Three selectable modes: D8, D16 or LR10 (long range 10ch one-way)
Smart Port: realize full duplex transmission; connect to any Smart Port enabled products, such as new V2 telemetry sensors or other devices, etc.
RS232 Port: the same port as that on DFT/DJT/DHT modules; connect to existing FLD-02 or other 3rd-party developed accessories, such as VSpeak module, etc.
Detect module antenna working status: sound warnings will be given out if the module antenna is broken or connection cable is not in intact contact, etc.

D16 receiver:
8 servo channels (with one internal voltage sensor)
Smart Port
S.BUS Port
RSSI output reserved

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Re: PXX work

Post by Rob Thomson » Tue Sep 11, 2012 8:50 am

Thanks for the update.

When can we post a picture? I am sure that it what everyone is dying to see! :-)

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Re: PXX work

Post by MikeB » Tue Sep 11, 2012 8:57 am

Eva: Is there an update to the PXX for the DHT/DFT/DJT modules? It would be good to have the extra PXX functions available on existing systems.

Thank You.

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Re: PXX work

Post by cre8tiveleo » Tue Sep 11, 2012 9:39 am


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Re: PXX work

Post by EvaLiu » Wed Sep 12, 2012 2:41 am

D16 module & receiver will be launched first and then PXX upgrade firmware for DFT/DJT/DHT modules later on.

Bear in mind that some features & functions will be unavailable due to the hardware limitation of existing systems.

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FrSky XJT module, X8R and L9R rx's, new hub-less vario senso

Post by EvaLiu » Thu Feb 07, 2013 3:03 am

XJT module (JR/Graupner type):
• Two auto-detected modulations: PXX (mode selection, bind, model match, range check, failsafe, etc. on radio side) or CPPM.
• Three selectable modes: D8 (existing 8ch two-way), D16 (new 16ch two-way full duplex transmission) and LR12 (new 12ch one-way, approx. three times range of current V8 & D series when pairing with new LR series receivers, such as L9R).
• ﹡Smart Port enabled, realizing two-way full duplex transmission.
• Detect the module antenna’s working status and give sound warnings if the module antenna is broken or does not have intact contact, etc.
• Super lower latency (approx. 1/3 of current systems) and higher precision (transmitter’s hardware and software support required, such as ☆ FrSky transmitters).
☆ A special section for FrSky transmitters will be accessible after the China Spring Festival.


X8R receiver (8/16ch telemetry receiver):
• More number of channels: 1~8ch from conventional channel outputs, 1~16ch from SBUS port.
• With RSSI output: analog voltage output (0~3.3V).
• ﹡Smart Port enabled, realizing two-way full duplex transmission.


L9R receiver (9/12 non-telemetry long range receiver):
• More number of channels: 1~9ch from conventional channel outputs, 1~12ch from SBUS port.
• With RSSI output: analog voltage output (0~3.3V).
• Longer operating range: three times of the operating range for V8 or D series.
Manuals_XJT_X8R_L9R.pdf
(301.81 KiB) Downloaded 912 times


New hub-less variometer sensor:
Vario.jpg
• Capable of connecting directly to the telemetry receivers without the sensor hub.
• Backwardly compatible with existing sensor hub and sensors and forwardly compatible with new generation Smart Port enabled sensors.
• ﹡Smart Port enabled, realizing two-way full duplex transmission.


SBUS & CPPM compatible servos:
D25MA  D12MB.jpg
Auto-detect the firstly received signal after being powered on and act as conventional digital servo, SBUS compatible servo or CPPM compatible servos.

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Re: PXX work

Post by Helle » Sat Mar 02, 2013 10:30 am

Hy,

ok if the PXX protokoll is open and at a jacket, we can use a uC to work with it
get out the other channels 8-16-32 with PPM for servos or calculate some other things, switch channels and so on

Helle

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Re: PXX work

Post by Kilrah » Sat Mar 02, 2013 10:38 am

What is referred to as PXX is between radio and TX module only.

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Re: PXX work

Post by Helle » Sat Mar 02, 2013 11:51 am

Hy,

sorry, I think the open protokoll SamrtPort at the RX and at the TX
which is enabled with the PXX Protokoll
Helle

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Re: PXX work

Post by Kilrah » Sat Mar 02, 2013 12:19 pm

Ah, that's another thing. Details will be available when the X9D is released.

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Re: PXX work

Post by Iksbob » Fri Aug 30, 2013 6:27 pm

Any news here re: PXX? I upgraded to digital servos on my heli, put the receiver in HS mode but then realized that the link between the DJT and radio is still PPM... Eliminating any latency benefit from higher refresh rates between the RX and servos.
I see there's a new(er) firmware file out for the DJT... Anyone know if it includes PXX support?

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Re: PXX work

Post by jhsa » Fri Aug 30, 2013 6:38 pm

frsky still hasn't released any update for the DJT or DHT.
I'm also waiting for it ,)

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Re: PXX work

Post by MikeB » Fri Aug 30, 2013 6:55 pm

AFAIK FrSky have not officially released firmware for the DJT that supports PXX. What they have done is introduce the XJT module (for the Taranis) that does support PXX. This is an improved version of the PXX originally implemented that supports 16 channels, failsafe setting, binding and range checking.
I believe FrSky intend to release an update for the DJT but we don't know when it will happen.
I have been looking at supporting the XJT module (http://openrcforums.com/forum/viewtopic ... =30#p59239), I have something working. At present I'm only sending 8 channels, and I'm only sending the PXX stream every 18 mS. This is the same as the Taranis I think. That sends a PXX frame every 9mS, but one frame is for channels 1-8 and the next is for channels 9-16, so each channel is only sent to the module every 18 mS.
This is a 'work in progress'.

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Re: PXX work

Post by GTiDon » Wed Sep 11, 2013 6:35 am

Hi
Sorry for my ignorance
Ive been trying to follow this, but still don't fully understand the excitement.

What is the benefits of this PXX protocol?
Apart from model matching, I assume this links models on the radio to specific receivers?

I have a sky V3 board and a DJT, and a few D8R 2 receivers. Would reflashing firmware etc be worth my while?

Will it be worth my while to get a XJT module with my D8R 2 receivers? - I do Fly FPV

I have also done the "telemetry module mod" using pins on the DJT module for direct plug on with no extra wires. Will this be a problem if I switch to the XJT?
Er9X Flashed
Speaker Mod Done
Haptic Feedback Mod Done
Telemetry Mod Done with FRSky TTL Lite
Voice Mod Done with Emartee Board
HK Backlight Done
FRSky Telemetry DIY Module Installed
----All these mods removed and installed Sky 3.0 board with DJT Module.

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Re: PXX work

Post by MikeB » Wed Sep 11, 2013 7:29 am

The benefits of PXX only really apply if you use the XJT module with the X8R receiver(s). With 'D' series receivers there is no gain.

From my testing there is no problem to using the XJT with the "telemetry module mod".

You also get the possibility of using 16 channels by using either SBUS servos or two X8R receivers.

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Re: PXX work

Post by jhsa » Wed Sep 11, 2013 10:18 am

Mike, just a question as I don't really fully understand all this yet..

If I get a XJT module, would I be able to have receiver match and set the failsafe from the radio using the "D" series receivers?

Thanks,

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Re: PXX work

Post by MikeB » Wed Sep 11, 2013 10:44 am

No. The 'D' series receivers don't support that as far as I know. I don't think they will do receiver match, and I haven't tried failsafe setting but as the firmware in them was done before the XJT I doubt they handle it.

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Re: PXX work

Post by jhsa » Wed Sep 11, 2013 11:27 am

I suspected that, thank you..
No point on getting a XJT yet then :( as it doesn't have analog ports anyway and I have many D series receivers. Can't afford to change all the receivers on my small fleet at the moment..
Also I like to build my own sensors and I use the openXsensor project and as the new protocol is still not supported yet I see no reason to change to the X series..
Maybe frsky releases updates for the DJT and DHT modules and D series receivers soon so we can have at least some of the funcionality. S-port won't be compatible due to hardware limitations as far as I understand, but I can live with that..

So, we can only wait ;)

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Re: PXX work

Post by Iksbob » Wed Sep 11, 2013 1:51 pm

MikeB wrote:The benefits of PXX only really apply if you use the XJT module with the X8R receiver(s). With 'D' series receivers there is no gain.
So is there no latency advantage with D receivers?

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Re: PXX work

Post by jhsa » Wed Sep 11, 2013 2:39 pm

No they are working with PPM as always.. Unless frsky releases an update for them :(
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