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INDI Library v1.7.9 Released (23 Jun 2019)

INDI Library v1.7.9 is mostly a maintenance release to fix a few bugs in several drivers.

Internal Guider - Correction pulses sent every other frame?

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Internal Guider - Correction pulses sent every other frame? was created by Herrhausen

Hi, during the last couple of sessions I noticed guiding corrections were sent every other guide frame only. What I mean is this:

A frame is received from the guide cam. Drift Graphics as well as "Guiding Delta" and "Pulse Length" show the correspoinding values.

When the next frame is received though, nothing happens. Neither Drift Graphics nor Guiding Delta or Pulse Length are updated.

The third frame triggers correct action, the fourth doesn't, and so on...

I don't know whether this really means that no correction pulses are being sent to the mount, in particular when ST4 guiding is active. But it is my impression that indeed no correction pulses are sent because after dithering it takes way too long to get the guide star centered again. Normally I would have a 7 second wait between re-start of guiding and the next picture being taken. Recently though it took much longer for guiding to return to stable operation again.

Today I checked with Build: 2018-10-12T15:09:27Z and a fresh GIT pull (Build: 2018-10-16T12:47:25Z) but the issue remains (even when operating simulators).

A video is attached.
The following user(s) said Thank You: xsnrg
8 months 1 week ago #30462
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    screenreco...0-16.mkv

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Replied by xsnrg on topic Internal Guider - Correction pulses sent every other frame?

This happened for me last night as well, on the latest bleeding build.
12" pier with HDX110 using EQMod
ASI 1600 mono/color mains with ASI290MM in off-axis
ASI filter wheel
Moonlite focusers for the sharpening
AT115EDT and 8" Newt for the light
Fedora Linux, 100% INDI
The following user(s) said Thank You: Herrhausen
8 months 1 week ago #30463

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Replied by Herrhausen on topic Internal Guider - Correction pulses sent every other frame?

I'm afraid I can't see in the log files what's going wrong. Apparently everything is OK. I don't know whether any correction pulses are being received by the mount and why Drift Graph, Pulse Length etc. are not being updated on every guide frame received. Are there any log options that I should activate in order to get this kind of information into the log file?
8 months 6 days ago #30636
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Replied by Herrhausen on topic Internal Guider - Correction pulses sent every other frame?

Has this been taken care of or is it going to be fixed, maybe before 3.0.0 is released? Due to bad weather I don't have a chance to check it out on my own.
7 months 2 weeks ago #31339

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Replied by Herrhausen on topic Internal Guider - Correction pulses sent every other frame?

The issue remains with today's GIT. I am wondering why there is no feedback (other than xsnrg's confirmation, thanks!). Has it been put on the back burner?
Last edit: 7 months 1 week ago by Herrhausen.
7 months 1 week ago #31549

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Replied by AstroNerd on topic Internal Guider - Correction pulses sent every other frame?

There seems to be a lot of issue ATM so things are slow, Jasem has a todo list... :)
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
7 months 1 week ago #31555

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Replied by Herrhausen on topic Internal Guider - Correction pulses sent every other frame?

Is this issue on the to-do list?
6 months 5 days ago #32785

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Replied by knro on topic Internal Guider - Correction pulses sent every other frame?

By default, any correction pulses less than 100ms are not sent to the Mount/ST4. Have to check with Robert about the graph itself.
Jasem Mutlaq
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How to Submit Logs when you have problems?
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6 months 4 days ago #32909

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Replied by Herrhausen on topic Internal Guider - Correction pulses sent every other frame?

It goes deeper than that. Correction pulses aren't even calculated and remain the same as in the guide frame before. It can be seen with simulators, so it is independent from my hardware.
6 months 1 day ago #32974

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Replied by Herrhausen on topic Internal Guider - Correction pulses sent every other frame?

Today's git still discards every second guide frame. The guide module doesn't work correctly.
5 months 3 weeks ago #33186

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Replied by knro on topic Internal Guider - Correction pulses sent every other frame?

Ok it's fixed, please check GIT now.
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info
The following user(s) said Thank You: Herrhausen, pentaxian23
5 months 3 weeks ago #33194

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Replied by Herrhausen on topic Internal Guider - Correction pulses sent every other frame?

It now works as expected, thanks! What a pity this bug is in V3.0.
The following user(s) said Thank You: pentaxian23
5 months 3 weeks ago #33196

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