1.11.beta: Fixed Wing Flaps PWM output only on ch6, but not on ch7 #14743

jstrebel · 2020-04-23T16:50:07Z

On my FW with 1.10.1 I have the flaps on channel 6 & 7, works fine.
Not with 1.11.beta1. Only flap on channel 6 is moving. Flap on Channel 7 is dead.
Reverted back to 1.10.1 on the same pixhawk, both Flaps working again.
QGC is on 4.0.6
HW: pixhawk4
Please let me know If you need futher info

Mixer file is on ./microsd/etc/mixers

### AAERTWF.main.mix
#### Skywalker 2000
##  10.4 16:30
###
#### servo 1 Quer rechts
M: 1
O:      10000  10000      0 -10000  10000
S: 0 0  10000  10000      0 -10000  10000
## S: 0 6  10000  10000      0 -10000  10000
#### servo2 Quer links
M: 1
O:      10000 10000    0 -10000  10000
S: 0 0  10000  10000   0 -10000  10000
### S: 0 6 -10000 -10000     0 -10000  10000
### servo 3 Hoehe
M: 1
O:       10000   10000      0 -10000  10000
S: 0 1  -10000  -10000      0 -10000  10000
### servo4 Seite
M: 1
O:      10000  10000      0 -10000  10000
S: 0 2  10000  10000      0 -10000  10000
### servo 5 Motor
M: 1
O:      10000  10000      0 -10000  10000
S: 0 3      0  20000 -10000 -10000  10000
#####
##### zusaetze
### servo 6 flaps links
M: 1
O:      -10000  -10000      0 -10000  10000
S: 0 4  0  20000  -10000 -10000  10000
###
### servo 7 Flaps rechts
M: 1
O:      10000  10000      0 -10000  10000
S: 0 4  0  20000     -10000 -10000  10000
##### s8
M: 1
O:      10000  10000      0 -10000  10000
S: 0 4  10000  10000      0 -10000  10000
#####
M: 1
O:      10000  10000      0 -10000  10000
S: 0 4  10000  10000      0 -10000  10000

The text was updated successfully, but these errors were encountered:

sfuhrer · 2020-04-25T21:31:42Z

@jstrebel could you share a log from this? Even from some bench testing would be useful, so just arm the vehicle on the ground and apply the flaps. Thanks!

jstrebel · 2020-04-26T12:59:28Z

the first is the log 1.10.1
https://review.px4.io/plot_app?log=23e498af-9db1-4794-9464-35c3a2bd529e
this is the log with to 1.11.beta.
https://review.px4.io/plot_app?log=7fde38d8-10eb-4020-a6f4-4c0b7517d28e

Hope this helps. ( I did downgrade to 1.10.1 und upgrade to 1.11.beta several times. NO change with the hardware nor parameter changes

sfuhrer · 2020-04-26T22:04:57Z

Thanks for the logs. So far I haven't found the anything, beside that they confirm your findings (output 5 and 6 are fixed to 0).

sfuhrer · 2020-04-26T22:24:47Z

@jstrebel could you maybe run a test with all the other stuff beside the settings for the Flap channels removed in the mixer, so only:

servo 6 flaps links
M: 1
O: -10000 -10000 0 -10000 10000
S: 0 4 0 20000 -10000 -10000 10000

servo 7 Flaps rechts

M: 1
O: 10000 10000 0 -10000 10000
S: 0 4 0 20000 -10000 -10000 10000

If you want to check if that makes the flaps move you would then need to connect them to channel 1 and 2 (in the log it would though be anyway noticeable).
If it works with the reduced mixer, try to, one by one, add the remaining channels again, until you have all you need or it fails again.
Or maybe somebody else has an idea in the meantime what the issue could be.

LorenzMeier · 2020-04-27T07:11:32Z

@jstrebel I would test removing all comment lines. Multi-line comments and alike things are not officially supported in mixers.

jstrebel · 2020-04-27T11:07:08Z

@LorenzMeier, I deleted the comment lines. No change in behavior.
@sfuhrer If I put only the Flap entries in the mixer file, then as expected the two ailerons (channel 1 and 2) move as flaps in the correct direction.

If I put the two entries of the ailerons as the first two entries, then the ailerons work correct. The Flaps move now at channel 3 and 4 (yaw and elevon)
In case I go back to the complete mixer File with all channels then the Flaps problem is back.
I do not see any strange character in the mixer file.
Strange to me is the identical mixer file works correct with 1.10.1 but not in 1.11.beta. Should I upload the mixer file?

jstrebel · 2020-04-28T06:58:37Z

@sfuhrer, did you get the required info you requested from me?
Is there a reason that this issue is not marked as a bug?

sfuhrer · 2020-04-28T09:32:40Z

@dagar do you have any idea what could have changed on the mixer level lately?

jstrebel · 2020-04-28T20:23:37Z

I made some further experiments as suggested by sfuhrer.

Put the following mixer file on the sd card then I get:

AAERTWF.main.mix

Skywalker 2000

10.4 16:30

servo 1 Quer rechts

M: 1
O: 10000 10000 0 -10000 10000
S: 0 0 10000 10000 0 -10000 10000

servo2 Quer links

M: 1
O: 10000 10000 0 -10000 10000
S: 0 0 10000 10000 0 -10000 10000

servo 3 Hoehe

M: 1
O: 10000 10000 0 -10000 10000
S: 0 1 -10000 -10000 0 -10000 10000

servo4 Seite

M: 1
O: 10000 10000 0 -10000 10000
S: 0 2 10000 10000 0 -10000 10000

servo 6 flaps links

M: 1
O: -10000 -10000 0 -10000 10000
S: 0 4 0 20000 -10000 -10000 10000

servo 7 Flaps rechts

M: 1
O: 10000 10000 0 -10000 10000
S: 0 4 0 20000 -10000 -10000 10000
Servo 1&2 roll working correct
Servo 3&4 pitch and yaw woring correct
Servo 5&6 Flaps working correct

Test with a changed test mixer file:
If I put duplicate now channel 4 (channel 4&5 now the same mixer setting. Servo 5 moves like servo 4, as expected)
Flap on channel 6 work ok but Flap on channel 7 does not move.

AAERTWF.main.mix

Skywalker 2000

10.4 16:30

servo 1 Quer rechts

M: 1
O: 10000 10000 0 -10000 10000
S: 0 0 10000 10000 0 -10000 10000

servo2 Quer links

M: 1
O: 10000 10000 0 -10000 10000
S: 0 0 10000 10000 0 -10000 10000

servo 3 Hoehe

M: 1
O: 10000 10000 0 -10000 10000
S: 0 1 -10000 -10000 0 -10000 10000

servo4 Seite

M: 1
O: 10000 10000 0 -10000 10000
S: 0 2 10000 10000 0 -10000 10000

servo4 Seite

M: 1
O: 10000 10000 0 -10000 10000
S: 0 2 10000 10000 0 -10000 10000

servo 6 flaps links

M: 1
O: -10000 -10000 0 -10000 10000
S: 0 4 0 20000 -10000 -10000 10000

servo 7 Flaps rechts

M: 1
O: 10000 10000 0 -10000 10000
S: 0 4 0 20000 -10000 -10000 10000

jstrebel · 2020-04-29T07:22:26Z

Observation: If I remove the sd card, forcing px4 starts with the built in mixer (Bormatec Maya) channel 4 Yaw and channel 6 in this case wheel ( show the same value if I do pwm info). There is no pwm output value on channel 7

RomanBapst · 2020-04-30T09:02:20Z

@jstrebel Really weird. I assume that you are using IO for pwm, correct?

jstrebel · 2020-04-30T10:19:36Z

Correct I/O PWM OUT on the pixhawk4. Its really weird. Going back to 1.10.1 everything works again.

RomanBapst · 2020-04-30T10:45:19Z

@jstrebel Can you try to use the pwm test command on that channel?

jstrebel · 2020-04-30T11:25:33Z

I did the following test with the standard Bormatec mixer no SD CARD inserted
pwm test -c 6 -p 1000 and 1800
pwm test -c 7 -p 1000 and 1800
Result: Both Flap Servo move

ryanjAA · 2020-05-01T04:57:16Z

I’ll load up a fresh plane with 11 beta (and the Albatross standard mixer) and report back the results on the flaps. We have flaps on ch 7 and 8.

jstrebel · 2020-05-02T13:04:34Z

Just did another test putting my mixer file back to the SD Card.
pwm test -c 6 -p 1000 (and 1800)
pwm test -c 7 -p 1000 (and 1800)
Result: Both Flap Servos move
But stil no change via RC: only Flap on Ch 6 move

ryanjAA · 2020-05-02T22:57:46Z

I loaded up 11 beta 1 and tested as well. We have 2 channel flap output, main 7 and 8 but triggered by RC channel 9 when done manually. It also doesn't work in our case. Looking at it a little closer, we have no output on anything from output 6 and up (servo_output_raw) shows this as well.

Taking from above, running pwm test -c 7 -p 1000 and we have movement but otherwise output shows 0 us.

This was done on 11 beta 1 with the Albatross aircraft selected and mixer that goes with it, nothing on the SD card or mixer to pull in, all standard and pulled from QGC.

mcsauder · 2020-05-04T18:10:00Z

Hi @jstrebel and @ryanjAA. If you add the following to your airframe config files does it change the behavior?
set PWM_OUT 12345678

jstrebel · 2020-05-04T20:02:43Z

@mcsauder : No change

mcsauder · 2020-05-05T15:52:12Z

@jstrebel can confirm with his tests, but this change appears to have made this issue show up.

Hi @dagar , you might be able to explain what the intention of this change was and if there is a better way to address the current behavior observed in this issue.

(@jstrebel , in the meantime, if you want, you can explicitly place set PWM_OUT fmu in your aircraft config file as well and that should take care of things without modifying the code.)

Updated Current master behaves differently than v1.11.0-beta1 and what I wrote above is likely incorrect.

(Edited, sorry @bkueng , I was looking at a different commit when I tagged you.)

dagar · 2020-05-05T16:51:57Z

Hi @dagar , you might be able to explain what the intention of this change was and if there is a better way to address the current behavior observed in this issue.

I don't think I'm following the issue here. That change shouldn't have been more than a rename, is that not the case?

I'll take this issue and try to reproduce.

jstrebel · 2020-05-05T17:48:47Z

@dagar, happy to help and do more beta testing.

mcsauder · 2020-05-06T01:16:06Z

@dagar , this issue appears fixed in current master but not in v1.11.0-beta1 as reported back by @jstrebel .... I'll poke around on this a bit more tomorrow.

jstrebel · 2020-06-11T09:51:56Z

Just tested it on Beta2. Its ok now

jstrebel changed the title ~~Fixed Wing Flaps channel 6 provides PWM output channel 7 not~~ 1.11.beta Fixed Wing Flaps channel 6 provides PWM output channel 7 not Apr 24, 2020

jstrebel changed the title ~~1.11.beta Fixed Wing Flaps channel 6 provides PWM output channel 7 not~~ 1.11.beta: Fixed Wing Flaps channel 6 provides PWM output channel 7 not Apr 24, 2020

jstrebel changed the title ~~1.11.beta: Fixed Wing Flaps channel 6 provides PWM output channel 7 not~~ 1.11.beta: Fixed Wing Flaps PWM output only on ch6, but not on ch7 Apr 24, 2020

weekly-digest bot mentioned this issue Apr 26, 2020

Weekly Digest (19 April, 2020 - 26 April, 2020) #14761

Closed

sfuhrer added the bug label Apr 28, 2020

dagar self-assigned this May 5, 2020

dagar added this to the Release v1.11.0 milestone May 5, 2020

jstrebel closed this as completed Jun 11, 2020

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1.11.beta: Fixed Wing Flaps PWM output only on ch6, but not on ch7 #14743

1.11.beta: Fixed Wing Flaps PWM output only on ch6, but not on ch7 #14743

jstrebel commented Apr 23, 2020 •

edited by LorenzMeier

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sfuhrer commented Apr 25, 2020

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LorenzMeier commented Apr 27, 2020

jstrebel commented Apr 27, 2020

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jstrebel commented Apr 29, 2020

RomanBapst commented Apr 30, 2020

jstrebel commented Apr 30, 2020

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mcsauder commented May 6, 2020

jstrebel commented Jun 11, 2020

1.11.beta: Fixed Wing Flaps PWM output only on ch6, but not on ch7 #14743

1.11.beta: Fixed Wing Flaps PWM output only on ch6, but not on ch7 #14743

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jstrebel commented Apr 23, 2020 • edited by LorenzMeier Loading

sfuhrer commented Apr 25, 2020

jstrebel commented Apr 26, 2020 • edited Loading

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LorenzMeier commented Apr 27, 2020

jstrebel commented Apr 27, 2020

jstrebel commented Apr 28, 2020

sfuhrer commented Apr 28, 2020

jstrebel commented Apr 28, 2020 • edited Loading

AAERTWF.main.mix

Skywalker 2000

10.4 16:30

servo 1 Quer rechts

servo2 Quer links

servo 3 Hoehe

servo4 Seite

servo 6 flaps links

servo 7 Flaps rechts

AAERTWF.main.mix

Skywalker 2000

10.4 16:30

servo 1 Quer rechts

servo2 Quer links

servo 3 Hoehe

servo4 Seite

servo4 Seite

servo 6 flaps links

servo 7 Flaps rechts

jstrebel commented Apr 29, 2020

RomanBapst commented Apr 30, 2020

jstrebel commented Apr 30, 2020

RomanBapst commented Apr 30, 2020

jstrebel commented Apr 30, 2020

ryanjAA commented May 1, 2020

jstrebel commented May 2, 2020

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mcsauder commented May 4, 2020

jstrebel commented May 4, 2020

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mcsauder commented May 6, 2020

jstrebel commented Jun 11, 2020

jstrebel commented Apr 23, 2020 •

edited by LorenzMeier

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jstrebel commented Apr 26, 2020 •

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sfuhrer commented Apr 26, 2020 •

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jstrebel commented Apr 28, 2020 •

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