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Yi Zhan i6S capture

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22 Jan 2016 13:06 #42071 by SeByDocKy
Yi Zhan i6S capture was created by SeByDocKy
Here are some SPI captures of this really nice sporty nanohexcopter (XN297 based)

mon-partage.fr/f/9kyTFKq3/

Be aware, mine is a little bit deffective and I have some to turn on/off serveral time the radio to bind the quad. So in capture, I should have 2 or 3 files with a working binding process. I think it should be ok...

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22 Jan 2016 15:20 - 22 Jan 2016 15:24 #42077 by goebish
Replied by goebish on topic Yi Zhan i6S capture
I might have a look later.
Meanwhile, if anyone else wants to try to implement it, you'll need this patch which has not been pushed to default yet, or 9 byte payload with CRC enabled won't work:
bitbucket.org/goebish/deviationtx/commit...cdce401bc?at=default
(oops ;))
Last edit: 22 Jan 2016 15:24 by goebish.

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22 Jan 2016 15:31 - 22 Jan 2016 15:36 #42078 by goebish
Replied by goebish on topic Yi Zhan i6S capture
A first glance it looks pretty similar to the H7 / MT99xx protocol, I think a protocol format option should be fine, I could take this opportunity to finally fix the H7 protocol since the changes I made for MT99xx seem to have broken a few things hence this protocol has not been pushed to default yet.
Last edit: 22 Jan 2016 15:36 by goebish.

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22 Jan 2016 15:42 #42080 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture

goebish wrote: A first glance it looks pretty similar to the H7 / MT99xx protocol, I think a protocol format option should be fine, I could take this opportunity to finally fix the H7 protocol since the changes I made for MT99xx seem to have broken a few things hence this protocol has not been pushed to default yet.


Ho great :)

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27 Jan 2016 19:47 #42283 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture
Any news ? :)

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27 Jan 2016 20:01 #42285 by goebish
Replied by goebish on topic Yi Zhan i6S capture
it's on my todo list for next week-end ;)

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27 Jan 2016 20:09 #42287 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture

goebish wrote: it's on my todo list for next week-end ;)


Ok :) be aware, I can fill your todo list with new protocols :)

- JJRC H29G
- Cheerson CX-35 (no more using the CX-10 green like the CX-32/CX-33 :()
- Fayee FY805 (a picohexa)
-JXD 809 (in fact it's the Q282 protocol but need to capture the "start engine" button)
- DWI DF32

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28 Jan 2016 12:59 - 28 Jan 2016 13:00 #42313 by goebish
Replied by goebish on topic Yi Zhan i6S capture
I had a further look at the i6S capture, looks like it's using the new XN297L ?

If that's the case it operates @ 250kbps :)
17 W_REGISTER(RF_SETUP) FF

... I just declined the pull request for my MT99xx branch, I'll make a new proper one and create a new PR once this new format is ready...
Last edit: 28 Jan 2016 13:00 by goebish.

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28 Jan 2016 13:09 - 28 Jan 2016 13:10 #42314 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture

goebish wrote: I had a further look at the i6S capture, looks like it's using the new XN297L ?

If that's the case it operates @ 250kbps :)
17 W_REGISTER(RF_SETUP) FF

... I just declined the pull request for my MT99xx branch, I'll make a new proper one and create a new PR once this new format is ready...


Bingo :)

File Attachment:



I understand why the control range is improved versus Basic toys XN297 based
Last edit: 28 Jan 2016 13:10 by SeByDocKy.

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28 Jan 2016 13:11 #42315 by goebish
Replied by goebish on topic Yi Zhan i6S capture
Ok, I've to understand how channel hopping works, shouldn't be very difficult but it's not exactly the same than H7 / MT9916.

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28 Jan 2016 13:20 - 28 Jan 2016 13:47 #42316 by goebish
Replied by goebish on topic Yi Zhan i6S capture

SeByDocKy wrote: I understand why the control range is improved versus Basic toys XN297 based


From what I understand to the datasheet (mix of Chinglish ...) the XN297L has an integrated +13dBm PA ... but well, the non "L" version has +10dBm still it was not better than nrf24l01+ with no external PA (0dBm).
Last edit: 28 Jan 2016 13:47 by goebish.

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28 Jan 2016 14:03 #42318 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture

goebish wrote:

SeByDocKy wrote: I understand why the control range is improved versus Basic toys XN297 based


From what I understand to the datasheet (mix of Chinglish ...) the XN297L has an integrated +13dBm PA ... but well, the non "L" version has +10dBm still it was not better than nrf24l01+ with no external PA (0dBm).


yes and add also that the RX sensitvity @250kbit should probably +6dBm better than at 1mbits so +3dBm for the TX part, probably + 6dBm sp range x2.5

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28 Jan 2016 14:44 #42322 by goebish
Replied by goebish on topic Yi Zhan i6S capture
Note to my future self: always 'make distclean' after switching branches.... I've been struggling more than one hour wondering why MT99XX and MJQx didn't appear in my build :whistle:

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28 Jan 2016 14:50 #42323 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture

goebish wrote: Note to my future self: always 'make distclean' after switching branches.... I've been struggling more than one hour wondering why MT99XX and MJQx didn't appear in my build :whistle:


can you start from the last HexFet combo build ? :) got almost everything there :)

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28 Jan 2016 15:18 - 28 Jan 2016 15:20 #42325 by goebish
Replied by goebish on topic Yi Zhan i6S capture
No, I've to start from default or this will be a mess to merge afterward ;)
Last edit: 28 Jan 2016 15:20 by goebish.

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28 Jan 2016 17:13 #42327 by hexfet
Replied by hexfet on topic Yi Zhan i6S capture
Everything's been merged to default. Nothing special in the combo build at the moment.

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28 Jan 2016 18:49 #42331 by goebish
Replied by goebish on topic Yi Zhan i6S capture
How do you arm ?
I can't find the manual ...

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28 Jan 2016 18:54 #42332 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture

goebish wrote: How do you arm ?
I can't find the manual ...


throttle up & down .. be aware, i have only few captures of the arming sequence coz my Yi-Zhan I6s is a bit buggy for this step

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28 Jan 2016 19:04 #42333 by goebish
Replied by goebish on topic Yi Zhan i6S capture
Ah ok I think I understand ...
Regarding your issue I suppose your stock TX needs sticks recalibration, but I've no idea if you can even do that ...

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28 Jan 2016 19:14 #42334 by SeByDocKy
Replied by SeByDocKy on topic Yi Zhan i6S capture

goebish wrote: Ah ok I think I understand ...
Regarding your issue I suppose your stock TX needs sticks recalibration, but I've no idea if you can even do that ...


No in fact, sometimes the binding is failing .... so no possibility to arm

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