MoonTop M9911 with PANCHIP XN297

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24 May 2014 11:39 - 24 May 2014 12:02 #23565 by SeByDocKy
MoonTop M9911 with PANCHIP XN297 was created by SeByDocKy
Hi,

I received a very very nice nanoquad (ProtoX clone but amazingly good).
This one is using the PANCHIP XN297





File Attachment:

File Name: 20131107105031.pdf
File Size:144 KB


According to datasheet, it's using a GFSK at 1Mbits/1Mhz or 2Mbits/2Mhz...
Anyone know if this one compatible with one of our 4 favorites RFchips ?
Can be emulated with one of them ?. I already identified SPI pins...
I can capture logs if Victzh, PB, HexFet is interesred :)
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Last edit: 24 May 2014 12:02 by SeByDocKy.

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24 May 2014 12:18 #23566 by PhracturedBlue
Replied by PhracturedBlue on topic MoonTop M9911 with PANCHIP XN297
It looks like an nrf24l01 clone. the radio has thesame specs and the pinout is identical. It is possible it uses a different preamble (in which case it maybe incompatible) but I'd be surprised.

So sure, go ahead and capture the TX SPI tracce

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24 May 2014 12:36 #23568 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297

PhracturedBlue wrote: It looks like an nrf24l01 clone. the radio has thesame specs and the pinout is identical. It is possible it uses a different preamble (in which case it maybe incompatible) but I'd be surprised.

So sure, go ahead and capture the TX SPI tracce


Ok Boss :) I will :)

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24 May 2014 12:38 #23569 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297
I found this other document but doesn't help too much ...

File Attachment:

File Name: XN297-.pdf
File Size:460 KB
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25 May 2014 00:42 #23585 by victzh
Replied by victzh on topic MoonTop M9911 with PANCHIP XN297
It's probably a clone of V272, did you try V202 protocol on it? I have V272, it flies OK.

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25 May 2014 05:23 #23593 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297

victzh wrote: It's probably a clone of V272, did you try V202 protocol on it? I have V272, it flies OK.


Yes I tried all nRF24L01 associated protocols without success.... :(
For the CX-10 and CX-11, it's using the Sky Wlkr protocol (good news)

I will capture SPI log asap

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25 May 2014 06:24 #23594 by victzh
Replied by victzh on topic MoonTop M9911 with PANCHIP XN297
OK, one more to go!

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25 May 2014 08:22 - 25 May 2014 08:22 #23598 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297

victzh wrote: OK, one more to go!


For the King of the nRF24L01 like you, it will trivial :)
By the way, you should make videos of your hacking process ...

Want to be Victzh Jr :)
Last edit: 25 May 2014 08:22 by SeByDocKy.

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25 May 2014 16:21 #23610 by victzh
Replied by victzh on topic MoonTop M9911 with PANCHIP XN297
Hacking process is not very visualizable. A man staring at a computer with quad-ruled pad nearby and scribbling some illegible notes. Sometimes for hours. There are very simple cases, say you have documentation, or protocol is just straightforward. Then the note in notepad are minimal. If they use non-trivial algorithm somewhere - either for frequency hopping or for CRC, or pack values like SLT did, then you need to guess. Then check yor guess. And so on. It's close to the scientific research, but the puzzle is man-made.

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25 May 2014 21:09 #23617 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297
Ok ...

First file : TX on, quad off ....no other action

mon-partage.fr/f/pGUdzE9l/


Second file :

Quad on, TX on (binding) then play a bit with right stick

mon-partage.fr/f/N3aY1kmG/


More to come

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25 May 2014 21:19 #23618 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297
One new (larger)

Quad on then TX on (binding) then some trhottle then play with right stick than press the flipping and speed mode buttons (2 or 3 times each of them)


mon-partage.fr/f/Op3uMIUh/

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26 May 2014 05:01 #23621 by victzh
Replied by victzh on topic MoonTop M9911 with PANCHIP XN297
It's nRF clone for sure, but probably some original one - it does not have Beken commands but some other unknown commands instead.

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26 May 2014 05:25 - 26 May 2014 05:25 #23624 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297

victzh wrote: It's nRF clone for sure, but probably some original one - it does not have Beken commands but some other unknown commands instead.


So we need to find a detailed datasheet to find them ?
Last edit: 26 May 2014 05:25 by SeByDocKy.

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26 May 2014 05:36 #23625 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297
One detail point. The quad have to be switch on first for binding successfully

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26 May 2014 18:20 #23637 by victzh
Replied by victzh on topic MoonTop M9911 with PANCHIP XN297

SeByDocKy wrote: So we need to find a detailed datasheet to find them ?


No need at all - these commands can be just a result of spurious activity, not real commands, and second - they are at the very beginning and do not affect the logic of further action, at best it's some chip-specific initialization. For all intents and purposes it's nRF24L01. One condition though - we did not check the radio - they can use the commands of nRF but modulation of their own. I doubt it though, as there is no need to do this - if you clone something, why clone the easiest part and invent your own radio.

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27 May 2014 04:49 #23659 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297

victzh wrote:

SeByDocKy wrote: So we need to find a detailed datasheet to find them ?


No need at all - these commands can be just a result of spurious activity, not real commands, and second - they are at the very beginning and do not affect the logic of further action, at best it's some chip-specific initialization. For all intents and purposes it's nRF24L01. One condition though - we did not check the radio - they can use the commands of nRF but modulation of their own. I doubt it though, as there is no need to do this - if you clone something, why clone the easiest part and invent your own radio.


Maybe on the capture with the TX on standalone, you can find these initialization informations ?

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27 May 2014 07:45 #23667 by victzh
Replied by victzh on topic MoonTop M9911 with PANCHIP XN297
I did not say that we even need it. I think that you can just treat it as nRF exact clone (there is at least one such chip) until proven the opposite.

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27 May 2014 08:30 #23670 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297

victzh wrote: I did not say that we even need it. I think that you can just treat it as nRF exact clone (there is at least one such chip) until proven the opposite.


Well ... me ... I reach my maximum capacity by delivering the SPI informations :( ....

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27 May 2014 15:00 #23682 by victzh
Replied by victzh on topic MoonTop M9911 with PANCHIP XN297
I did not say that I need more ;-)

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27 May 2014 15:30 #23685 by SeByDocKy
Replied by SeByDocKy on topic MoonTop M9911 with PANCHIP XN297

victzh wrote: I did not say that I need more ;-)


:)

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