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Devo protocol 11ms mode?

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12 Dec 2013 18:37 #16556 by Hexperience
Devo protocol 11ms mode? was created by Hexperience
The rx802 (and others) support 11ms mode to the servos. Does deviation support this mode and are there any benefits or drawbacks to using it?

I'm looking into using 11ms mode for a flybarless controller. I don't know if it will do anything or not...

cheers
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12 Dec 2013 19:13 #16558 by FDR
Replied by FDR on topic Devo protocol 11ms mode?
AFAIK the 11/22ms is an rx only feature, it defines the timing against the servos.
The tx sends out the packages much often...

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13 Dec 2013 10:31 #16573 by Hexperience
Replied by Hexperience on topic Devo protocol 11ms mode?
Thanks FDR, so I guess my next question is what is the frame rate of the devo protocol? How often does the TX send the packets to the RX?

Not that my thumbs are faster than 22ms... :)
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13 Dec 2013 12:15 #16574 by FDR
Replied by FDR on topic Devo protocol 11ms mode?
DEVO protocol sends 4 channel packets every 2.4ms, which means a new 8 channels data in every 4.8ms.

The 11ms rx timing is good for the fast digital servos and for FBL or multirotor controllers...

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13 Dec 2013 13:27 #16576 by Hexperience
Replied by Hexperience on topic Devo protocol 11ms mode?
Awesome! I'll try it with the mini vbar clone I have and see if there is any difference.
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16 Dec 2013 05:13 #16703 by gmcquet
Replied by gmcquet on topic Devo protocol 11ms mode?
I thought deviation does not support 11ms mode?

I read somewhere that DSM2/dsmx 11ms isn't supported, is that still the case? If so, any plans to change?


What about devo 11ms?


Thanks.

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16 Dec 2013 05:18 - 16 Dec 2013 05:23 #16704 by vlad_vy
Replied by vlad_vy on topic Devo protocol 11ms mode?
For Devo - you only need switch Rx to 11ms mode.

For DSM2/DSMX - at any case you need to have High Speed Rx for 11ms. Right now 11ms mode is not supported.
Last edit: 16 Dec 2013 05:23 by vlad_vy.

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16 Dec 2013 05:33 #16705 by gmcquet
Replied by gmcquet on topic Devo protocol 11ms mode?

vlad_vy wrote: For Devo - you only need switch Rx to 11ms mode.

For DSM2/DSMX - at any case you need to have High Speed Rx for 11ms. Right now 11ms mode is not supported.



Ok thanks. Will 11ms for dsmx be supported soon?

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03 Feb 2014 20:09 #19787 by John-Boy
Replied by John-Boy on topic Devo protocol 11ms mode?
Hi all,

I have quite a few Spektrum rx's to use with a Devo 12S I've ordered. So I'll ask the same question as gmcquet, will Deviation support the 11ms DSMX protocol sometime in the future?

Thanks...!

John L.

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04 Feb 2014 16:03 - 04 Feb 2014 17:08 #19826 by Mullson
Replied by Mullson on topic Devo protocol 11ms mode?
11 or 22ms has nothing to do with Deviation. Its only a feature that regards the rx to servos. If the rx in question has 11ms mode use it with fast digital servos.

As stated earlier in the tread the tx transmits much faster.
Last edit: 04 Feb 2014 17:08 by Mullson.

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04 Feb 2014 16:31 - 04 Feb 2014 16:33 #19827 by vlad_vy
Replied by vlad_vy on topic Devo protocol 11ms mode?
It's not quite right. DSMX protocol 11ms only applies to servo ports AILE, ELEV, and AUX1 in early radios (thru DX8) and adds RUDD in DX10t and above. The other channels are transmitted at 22ms refresh rates.

And it require 'High Speed' receiver.
Last edit: 04 Feb 2014 16:33 by vlad_vy.

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19 Mar 2014 19:34 #21668 by Hexperience
Replied by Hexperience on topic Devo protocol 11ms mode?
Old topic I know, but I'm still not clear.

From what I understand of this thread. The ONLY way to get 11ms mode today is to use a devo RX802 in 11ms mode connected to a beastX FBL.

Using an AR7200BX in dsmx mode will not be able to use 11ms mode.

Correct?
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19 Mar 2014 20:31 #21671 by HappyHarry
Replied by HappyHarry on topic Devo protocol 11ms mode?
i don't think deviation has any 11ms dsmx capability bud, no matter what rx is used

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19 Mar 2014 22:53 #21679 by Hexperience
Replied by Hexperience on topic Devo protocol 11ms mode?
Yeah, I wonder though, is it just a matter of how deviation binds during the dsmx handshake?

If devo protocol is updating all 8 channels in 4.8ms, plus some error checking? Telemetry?... I assume all that could be happening in less than 11ms.

I've been reading too much, and not really getting a lot of good information about latency. ?? I'm getting myself more confused than when I started. :)
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27 Sep 2016 10:03 - 27 Sep 2016 10:50 #54324 by Thomas.Heiss
Replied by Thomas.Heiss on topic Devo protocol 11ms mode?
Added DSM high speed option by Vlad: www.deviationtx.com/forum/protocol-devel...rotocol-errors#54246

Build Deviation 5.0.0 + latest protocols updates + DSMx error fix + high speed: www.deviationtx.com/forum/builds/6407-de...test-protocols#54314
Last edit: 27 Sep 2016 10:50 by Thomas.Heiss.

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