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27 Feb 2017
INDI development team is happy to announce the release of INDI Library v1.4.0. This new exciting release builds on the maturity of INDI Library and comes with many new supported devices and fixes for existing drivers. Several improvements and enhancements are included in this release including native support for Cygwin and MacOS platforms in addition to Linux, BSD, and Windows (Client only).
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TOPIC: TIS DMK 23UP031 exposure settings and general config

TIS DMK 23UP031 exposure settings and general config 2 weeks 3 hours ago #17848

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TallFurryMan wrote: I pushed PR #299, which is an attempt to bypass manual/auto control.


Hi Eric

I fetched PR/299 and made a quick test. The behavior is still the same :(, however, more information ends up in the log-file.
Please let me know if I should run further tests or provide you with more information that might help to solve the issue.
In any case, I'm very impressed to see how fast this is going and that the issue is taken seriously.
Niko
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TIS DMK 23UP031 exposure settings and general config 2 weeks 1 hour ago #17852

Mmh, I clearly made a stupid mistake... You have:
DEBUG	36.418621 sec	: - Exposure (Absolute) (used for absolute exposure duration)
And when starting an exposure:
ERROR	67.975622 sec	: Failed exposing, the absolute exposure duration control is undefined
It is the same control that is referred to by these two logs. I removed one wrong nullptr test at line 841! :blush:
Let me push something more to PR #299. It's a good thing you can fetch and build!

In the meantime, have you tried the IC Capture software with your camera? Are you able to change the exposure manually with that software?
-Eric

EDIT: you may go ahead testing PR #299, I pushed the mentioned fix.
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TIS DMK 23UP031 exposure settings and general config 2 weeks 1 hour ago #17853

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TallFurryMan wrote: In the meantime, have you tried the IC Capture software with your camera? Are you able to change the exposure manually with that software?
-Eric


I did check general functionality with IC Capture last week. I didn't do any in deeps checks, I was happy to get a picture at all :)
I'm on vacation right now and don't a have Windows PC with me, so I can't do anything with IC Capture.

For good measure, I added the output of v4l2-compliance, if it's of no use please disregard.
Niko
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TIS DMK 23UP031 exposure settings and general config 2 weeks 23 minutes ago #17856

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TallFurryMan wrote: EDIT: you may go ahead testing PR #299, I pushed the mentioned fix.


and ... it works !!!!!

Many thanks for this remarkable example of open source software advantages.

cheers
Niko
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TIS DMK 23UP031 exposure settings and general config 2 weeks 6 minutes ago #17857

I won't let you leave until you share a few logs to prove it :) Now that's a happy ending!
-Eric

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TIS DMK 23UP031 exposure settings and general config 1 week 6 days ago #17876

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Hi Eirc

here the log to prove it really works.
Thanks again
Niko
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TIS DMK 23UP031 exposure settings and general config 1 week 5 days ago #17881

Exposures are indeed possible now, but I would advise you to make more tests:in the log, some controls say exposure is either 1s or 1/3s, and the actual frame says it waited 0.125s. So although this is encouraging, it may need tweaking to function properly.
-Eric

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TIS DMK 23UP031 exposure settings and general config 1 week 5 days ago #17901

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Hi Eric

I've found some time for testing this evening.
The camera does recognize the exposure settings send via ekos. I prepared a short sequence with exposures from 0.001 -- 0.060 s and plotted the mean pixel values over the exposure time. To me, it looks reasonably linear which is what I'd expect.

The log file seems to be a little messed up. When triggering an exposure, the log receives data from the previous exposure.
In this case, I took a 1 s exposure before the sequence start. Resulting in:
...
DEBUG	2890.131759 sec	:   Setting Exposure (Absolute) (Exposure (Absolute)) to 10000.000000, ctrl_id = 0x9A0902
...
from the 1 s exposure, followed by
DEBUG	2890.140622 sec	: 0.001-second exposure translates to 10 1/10,000th-second device ticks.
...
DEBUG	2892.939829 sec	: Upload complete
which belongs to the actual exposure.

I noticed that the "Gain" in ekos has no effect on the images, but I have to check that in more details and get back to you.

cheers
Niko
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TIS DMK 23UP031 exposure settings and general config 1 week 4 days ago #17905

Thanks for that precise information.
When a request is issued to the device, first all control values are forwarded. This includes absolute exposure, and in your case a second control for exposure apparently (the one marked in microseconds). Then the user exposure duration is set into what control was recognized to be the relevant one ("Exposure (Absolute)"). So far, that's what the log reports.
Then what is a bit strange is that the timestamp reported in the V4L2 frame itself is always 0.09 seconds. That log is just informative, I originally planned to use it to drop corrupted frames, but in the end that wouldn't have been a good idea. So be it.
On my DMK changing the gain has a dramatic effect on the dynamic, but it is only 8-bit.
-Eric

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TIS DMK 23UP031 exposure settings and general config 1 week 4 days ago #17907

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TallFurryMan wrote: On my DMK changing the gain has a dramatic effect on the dynamic, but it is only 8-bit.

same here, it's just not "Gain" but "Gain (dB/100)". The "Gain" in ekos CDD capture settings has no effect on the image taken.

cheers
Niko

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Last Edit: by bigblue. Reason: typo
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