Re: [Paparazzi-devel] YAW Problem after update local repo.

Felix, the problem not occur anymore after the TURN-ON but when i change from ALT_Z_HOLD to HOVER_Z_HOLD

From: address@hidden
To: address@hidden
Date: Mon, 2 Sep 2013 09:14:46 -0300
Subject: Re: [Paparazzi-devel] YAW Problem after update local repo.

I am using kroz_sd_quad_agr airframe.
You are right, some time i power the quad with kill switch activated.

From: address@hidden
To: address@hidden
Date: Mon, 2 Sep 2013 09:09:35 -0300
Subject: Re: [Paparazzi-devel] YAW Problem after update local repo.

I will test now.
Thanks

Date: Mon, 2 Sep 2013 13:58:17 +0200
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] YAW Problem after update local repo.

Hi Eduardo,

the commits you mentioned with the yaw problem are still not in that branch...

And which airframe file did you use?

In any case, maybe I found (and fixed) the problem. stabilization_attitude_enter was not called anymore if that was the first mode you enter via RC (and the initial mode always beeing kill).

That should be fixed with https://github.com/paparazzi/paparazzi/commit/29da4ede963611766ef40d7d7b2779b8a16eb1fa

I probably didn't see this since I was entering different mode first....

Could you please quickly test and see if that was indeed the issue?

Thanks, Felix

On Mon, Sep 2, 2013 at 1:40 PM, Eduardo lavratti <address@hidden> wrote:

Sorry Felix,

I pushed the local branch.
here the link https://github.com/agressiva/paparazzi/tree/wooble

Date: Mon, 2 Sep 2013 12:18:45 +0200
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] YAW Problem after update local repo.

Hi Eduardo,

can you please always provide some information about which subsystems/algorithms you are using?

The best would be to link to your actually used airframe file (e.g. on github).

About these versions: since you have local changes/commits, these versions only exist in your local repository and hence it is hard to tell which versions of the paparazzi master branch you merged in or if it's maybe because of changes you made in your repo.

Could you please either push your local branch to your github repo so that we can check which versions you merged in?
Or run git merge-base to get the common commit that you merged...
git merge-base upstream/master 609cd03

git merge-base upstream/master 906ed12

Cheers, Felix

On Mon, Sep 2, 2013 at 12:14 AM, Eduardo lavratti <address@hidden> wrote:

More problem after update local repo.

Some time when i start the motor and put a little throttle to enable stabilization the YAW start to oscillate do +100% and -100%.

To solve this problem i power-off and power-on and test the response.
If the problem continue i power-off and power-on again.

Attached are attitude_loop logs when this problem occur.

see the delta_r_fb and delt_r

It oscillate all the time.

Somte time i only stop/start the motor and the problem stop.

Its very strange and it started when i update my local repo yesterday
BTW, the problem occur in other laptop with new instalation.

When i use v5.1_devel-105-g609cd03 the problem never occur.
with v5.1_devel-265-g906ed12 problem occur

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From:	Eduardo lavratti
Subject:	Re: [Paparazzi-devel] YAW Problem after update local repo.
Date:	Mon, 2 Sep 2013 09:45:25 -0300