V977 on 7e

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03 Dec 2014 21:23 #26750 by djzinc
Replied by djzinc on topic V977 on 7e
Hi, just now I've tested some ID scenarios.
the models with "none" at the Fixed id seams to work ok or lost signal rarely. Didn't noticed in the short, table test, I made.
but on the models with the fixed id set, I've noticed this:
ID-123456, give alot of glitches, but with ID-134562 or 134566, were unnoticeable glitches (again, in the short, heli-on-the-table, test I made).
hope it helps.

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07 Dec 2014 01:44 - 07 Dec 2014 01:49 #26830 by jimqjp
Replied by jimqjp on topic V977 on 7e
I modified kn protocol source code and create a new 7E version. It works very good for me now, no more disconnections.

6 channels are uesd:
ch1 to ch4: Throttle/pitch, Ail, Ele, Rud
ch5: Throttle hold
ch6: Flight mode: -100: 6G normal, 0: 3G normal, 100: 3G 3D

With the attached model file, which is for 7Es with two 3-position switches:
sw A: DR ranges: 50/75/100
sw B: Flight mode: 6G normal/3G normal/3D
Hold: Thr hold
Fmod: not used.

This model file also adds Ail mix for ruder. As much as -30% mixing is added to make my V977 do not shift while rotate. You can adjust the mix rate to fit your need.

For people do not have 3-pos switches, Fmod can be used to select two of the three options.
Attachments:
Last edit: 07 Dec 2014 01:49 by jimqjp.

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09 Dec 2014 14:37 - 09 Dec 2014 14:39 #26866 by Babay
Replied by Babay on topic V977 on 7e

jimqjp wrote: I modified kn protocol source code and create a new 7E version. It works very good for me now, no more disconnections.

Please, please post a patch for latest bitbucket source!
Last edit: 09 Dec 2014 14:39 by Babay.

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16 Dec 2014 04:46 - 16 Dec 2014 04:58 #27029 by jimqjp
Replied by jimqjp on topic V977 on 7e
Not sure if I have the right or supposed to post over there.

If you can compile, here is the source file. It is compatible to the old one though change quite bit. I also have added lots of comments to help the understand of the operation of 24L01.

The mixer.c is also modified for better data integrity of control values to be sent out. See isues #594 for explanation.

File Attachment:

File Name: kn_nrf24l0...2-15.zip
File Size:12 KB
Attachments:
Last edit: 16 Dec 2014 04:58 by jimqjp.

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16 Dec 2014 05:16 #27032 by jimqjp
Replied by jimqjp on topic V977 on 7e
Can someone explain the operation of V977 6-Axis mode trimming?

I do not have V977 stock controller, do not know how to do that. If knowing the principle, I can add the feature to 7E.

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16 Dec 2014 22:55 #27052 by victzh
Replied by victzh on topic V977 on 7e
Why don't you submit a pull request so that your changes are integrated in the official Deviation?

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16 Dec 2014 22:56 #27053 by victzh
Replied by victzh on topic V977 on 7e
And yes, you have a right and supposed to post anywhere on this forum as long as it's relevant - it's a collective project and it only benefits from good discussion.

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13 Feb 2015 10:47 #28626 by Aenima
Replied by Aenima on topic V977 on 7e

victzh wrote: Why don't you submit a pull request so that your changes are integrated in the official Deviation?


Hi i just want to ask when this patch will released in a new build for Devo10?
Thanks

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13 Feb 2015 20:29 - 13 Feb 2015 20:30 #28637 by ahmadie
Replied by ahmadie on topic V977 on 7e
please visit the following page for integrated version build for devo 7e 8s and 10

mcheli.blogspot.jp/2014/12/wltoys-v977-kn-protocol-mod.html

please also note u have to use the model file included in this site too.

the site in Russian but u can use google translate to get general idea.
Last edit: 13 Feb 2015 20:30 by ahmadie.

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13 Feb 2015 20:33 #28638 by ahmadie
Replied by ahmadie on topic V977 on 7e

victzh wrote: Why don't you submit a pull request so that your changes are integrated in the official Deviation?


can u please do this pull request ? this kn modification is a must; after i download and test finally i was able to fly my v977 without sticky behavior.

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13 Feb 2015 21:34 #28641 by badfrogg
Replied by badfrogg on topic V977 on 7e
I remember having this problem as well with the intermittent loss of signal way back several months ago when i first tried to setup my V977 on my freshly deviated 7E. I remember messing with the fixed ID until the problem went away completely and then i never looked back. but i just wanted to also confirm that i observed the same.

BTW i am using fixed id 111111 and iv been flying without problems for months. Iv range tested at my flying field until it is so far out that its just a spec and brought it back. I usually fly all out pushing for the fastest speeds and do loops and rolls and never had a glitch with that fixed ID. I dare not change it though.

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14 Feb 2015 00:00 - 14 Feb 2015 00:02 #28649 by hexfet
Replied by hexfet on topic V977 on 7e
I've looked at the code in the zip in this post .

It seems to address the same issue that was recently fixed by pull request 27 in the deviationtx repo. Definitely the same for the change to mixer.c. The protocol file is harder to compare because the differences are extensive, but I didn't spot any other functional differences.

The deviationtx fix will be in the next nightly build (one with a date after 02-11). If someone who is having issues would test it would help determine if the deviationtx code is also working well.
Last edit: 14 Feb 2015 00:02 by hexfet.

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15 Feb 2015 16:42 - 15 Feb 2015 20:29 #28730 by Aenima
Replied by Aenima on topic V977 on 7e

ahmadie wrote: please visit the following page for integrated version build for devo 7e 8s and 10

mcheli.blogspot.jp/2014/12/wltoys-v977-kn-protocol-mod.html

please also note u have to use the model file included in this site too.

the site in Russian but u can use google translate to get general idea.


Thanks a lot. :woohoo:
Last edit: 15 Feb 2015 20:29 by Aenima.

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15 Feb 2015 16:54 #28731 by ahmadie
Replied by ahmadie on topic V977 on 7e
i have tested this last version: deviation-devo10-v4.0.1-ee5c7a1.zip

there were no signal problem at least room test.

but i had to use the following settings:

fixed ID: 111111
KM > 1Mbps : No

i did not test outdoor yet but it works now ^^

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15 Feb 2015 17:08 - 15 Feb 2015 17:09 #28732 by Babay
Replied by Babay on topic V977 on 7e
I have prepared the following modification of KN-protocol. I use jimqjp-repository , but modified the protocol for backwards compatibility. Now available trimmers! Available 11 channels:

1. Throttle/Pitch
2. Aileron
3. Elevator
4. Rudder
5. DR
6. Hold
7. Flight mode Norm/3D
8. 3D/6G
9. Pitch trimmer
10. Aileron trimmer
11. Elevator trimmer

For new V977-receiver ajustable pitch work. And "Hover Debugging" in 6G-mode work also.

I compiled firmware for Devo7E, Devo8s and Devo10. I used the deviation-team repository and adapted patch for this. For sample, this is my V977 configuration .

http://mcheli.blogspot.com/2015/02/wltoys-v977-kn-protocol-mod-v2.html

Sorry, text only Russian.
Last edit: 15 Feb 2015 17:09 by Babay.

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17 Feb 2015 22:50 #28763 by ahmadie
Replied by ahmadie on topic V977 on 7e
i had tested this guy old code for past month.there was absolutely no problems. the most robust KN protocol ever used. i hope the community can trust his provided code sites.google.com/site/mchelifiles/kn-patch-v2.zip
and integrate into deviation.

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18 Feb 2015 01:06 #28768 by victzh
Replied by victzh on topic V977 on 7e
I'd be happy to code review and integrate it myself, if I had the rights for bitbucket/deviationtx repository.

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18 Feb 2015 01:08 #28769 by reinaldosouza
Replied by reinaldosouza on topic V977 on 7e
estou com mesmo problema!!!!
por favor uma dica de como rezolver

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18 Feb 2015 14:56 #28815 by ahmadie
Replied by ahmadie on topic V977 on 7e

reinaldosouza wrote: estou com mesmo problema!!!!
por favor uma dica de como rezolver


go here: mcheli.blogspot.jp/2015/02/wltoys-v977-kn-protocol-mod-v2.html

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18 Feb 2015 17:50 #28839 by victzh
Replied by victzh on topic V977 on 7e
@Babay, can you make a pull request against bitbucket.org/deviationtx/deviation ? Or you prefer I do it myself (in this case the credit in the development history would be mine ;-) ).

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