Devo f12e fpv stops working after deviation

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04 Jan 2017 05:51 #57525 by Bonemyster
Hello guys, after installing any of the latest nightlys of deviation the fpv of the devo f12e freezes when i connect to the frequency my 5.8ghz transmitter is broadcasting. I would report this as a bug but www.deviationtx.com/mantisbt/login_page.php does not let me log in even though I have an account here. Ive tried this on 3 different f12e and they all have the same problem so I am 100% sure that the problem is the firmware. So right now I will tell you exactly how to reproduce the bug which happens every time you connect to the frequency your 5.8ghz transmitter is broadcasting. So first i turn on my fpv transmitter, then i turn on my devo, go to the menu for fpv, set the switch for turning on fpv, turn on the switch, scroll through the channels to the one my fpv is broadcasting, and when i get to it the devo freezes completely will i turn it off and turn it on. At the moment deviation is making the devo f12e and fpvless controller. Please fix the bug as i have 2 other friends who own f12e. Awaiting a prompt response.

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05 Jan 2017 17:00 #57557 by HappyHarry
Replied by HappyHarry on topic Devo f12e fpv stops working after deviation
please keep in mind that all of the developers that contribute to deviationtx are volunteers who give their time/expertise freely to the project. while i'm sure that if one of them has an f12e in hand they will look into the issue as/when their free time allows, but i'm also sure the guys have lots of other projects/interests to work on with said free time so i'd suggest the best plan of action is to have a bit of patience, not "awaiting a prompt response" ;)

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06 Jan 2017 03:48 #57575 by Artus
Bonemaster please tell me a little more what you are doing to have this issue.

I have no problems with the 5,8 video transmitter

DEVO10 4in1 V5.0 DEVO F12E 4in1 V5
Align TREX 100 (3) Hubsan Q4
Walkera QRW100S Walkera QRX 350 Pro (FPV)
Walkera QRX 350 PREMIUM
DIY 100 mm Micro QUAD - HGLRCF4F5PRO with INAV

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08 Jan 2017 13:47 - 08 Jan 2017 13:47 #57700 by Bonemyster
Replied by Bonemyster on topic Devo f12e fpv stops working after deviation
I turn on my fpv transmitter, turn on the devo f12e, go to the frequency my fpv tranmitter is broadcasting and there the image freezes and slowly turns to grey. I have 2 other friends that have this same problem on their f12e so I'm sure that its the deviation firmware that causes this problem. When i reflash walkeras firmware i have no problems with the fpv freezing. You probably have a different deviation firmware that is not up to date, any way you can post your versions so i can download it?
Last edit: 08 Jan 2017 13:47 by Bonemyster.

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09 Jan 2017 02:16 #57724 by Cereal_Killer
Replied by Cereal_Killer on topic Devo f12e fpv stops working after deviation
Prepare for lots of ridiculous F12E questions as some freaking idiot from walkera got on Rcgroups today and told everyone how the "people over at deviation now have their FW running on the devo 12e and F12E"

Taranis X9E | DEVO 10 | Devo U7E | Taranis Q7

What I do in real life: rivergoequestrian.com/

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09 Jan 2017 05:05 #57725 by victzh
Replied by victzh on topic Devo f12e fpv stops working after deviation
I will look into it when I have time and energy. I have the same effect on my F12E, but as I bought it defective and replaced LCD I can't make it work good enough with stock Walkera firmware either, so I have no ground point. I need to make more experiments with it.

If someone has info on exact point in time when it worked, it would help. Someone mentioned specific version - it does not exist neither on GitHub nor on Bitbucket.

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09 Jan 2017 05:42 - 09 Jan 2017 07:07 #57726 by vlad_vy
Replied by vlad_vy on topic Devo f12e fpv stops working after deviation
I can build Devo F12E "v5.0.0 with latest protocols" for reference point, if anybody want to test it.

File deleted...
Last edit: 09 Jan 2017 07:07 by vlad_vy.

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09 Jan 2017 06:37 #57729 by Bonemyster
Replied by Bonemyster on topic Devo f12e fpv stops working after deviation
Vlad i just tested the version you attached and it has the same problem. Screen freezes when i hop on the channel my 5.8ghz transmitter is broadcasting and then slowly turns to a grey screen. If anyone has any other versions them I'm willing to test them. Will be getting on here once a day to check.

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09 Jan 2017 07:05 #57731 by victzh
Replied by victzh on topic Devo f12e fpv stops working after deviation
OK, I plan to load all Walkera F12E firmware versions we have and see will it restore my F12E to reasonable state. If it will, I'll trace real exchange over I2C with the video chip - may be we're initializing it incorrectly, or it requires tune-ups.

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09 Jan 2017 07:59 #57734 by Bonemyster
Replied by Bonemyster on topic Devo f12e fpv stops working after deviation
Alright, that would be great, I wish someone had an older version of the deviation firmware. Maybe have an area where old nightlys are stored so that way when we have these types of problems we can have other firmwares as backup to see if the problem always existed or if the bug was introduced at one point.

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09 Jan 2017 08:13 - 10 Jan 2017 13:46 #57736 by vlad_vy
Replied by vlad_vy on topic Devo f12e fpv stops working after deviation
Next reference point, v4.01, 2016-04-12 (7e9bb3f), before "Fix F12E screen alignment on newer F12E transmitters".

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Last edit: 10 Jan 2017 13:46 by vlad_vy.

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09 Jan 2017 08:43 #57738 by Bonemyster
Replied by Bonemyster on topic Devo f12e fpv stops working after deviation
Vlad you are the boss man, that versions fpv worked. I hope this reference point helps out the newer versions fpv

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09 Jan 2017 08:48 #57739 by Bonemyster
Replied by Bonemyster on topic Devo f12e fpv stops working after deviation
That version doesn't let me create new models but as a reference point its great.

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09 Jan 2017 09:40 - 09 Jan 2017 09:47 #57741 by vlad_vy
Replied by vlad_vy on topic Devo f12e fpv stops working after deviation
So, problem is related to commit 8274e6 - Fix F12E screen alignment on newer F12E transmitters. There is nothing more related to video chip up to v5.0.0.
Last edit: 09 Jan 2017 09:47 by vlad_vy.

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09 Jan 2017 13:37 #57744 by Bonemyster
Replied by Bonemyster on topic Devo f12e fpv stops working after deviation
I guess but you say on newer F12e transmitter. So do you mean the older version of the F12e doesnt have this problem? My friends F12e is very old, most likely one of the first ones that came out and his still has the same problem.

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09 Jan 2017 14:54 - 09 Jan 2017 14:55 #57748 by vlad_vy
Replied by vlad_vy on topic Devo f12e fpv stops working after deviation
Commit 8274e6 has many code changes and about 10 differences for video chip initialization sequence.

github.com/DeviationTX/deviation/commit/...74468990f46c6c8cee4c
Last edit: 09 Jan 2017 14:55 by vlad_vy.

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09 Jan 2017 17:05 #57751 by Bonemyster
Replied by Bonemyster on topic Devo f12e fpv stops working after deviation
Approximately how long would it take to fix this?

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09 Jan 2017 17:14 #57753 by vlad_vy
Replied by vlad_vy on topic Devo f12e fpv stops working after deviation
Will be better ask victzh about it. I havn't Devo F12E.

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09 Jan 2017 17:46 #57754 by victzh
Replied by victzh on topic Devo f12e fpv stops working after deviation
These changes did something, they're not arbitrary. We can't just revert them - we need to integrate useful changes. We need people for whom Deviation works on F12E now, I suspect that they have newer hardware. We need to keep it working for them also.

I can revert these specific changes and test on my (supposedly older) F12E. It does not mean that it starts working for everyone.

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09 Jan 2017 18:45 - 10 Jan 2017 13:47 #57757 by vlad_vy
Replied by vlad_vy on topic Devo f12e fpv stops working after deviation
Initialization sequence in "tw8816_init_bl1.3a.h" is equal to initialization sequence before commit 8274e6. Will be nice to check if v5.0.0 will work with "tw8816_init_bl1.3a.h" enabled instead of "tw8816_init_1.5.h".

Reference point #3:

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Last edit: 10 Jan 2017 13:47 by vlad_vy.

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