Camiel Severijns replied to the topic 'Cannot download image with Atik11000 and driver 1.22' in the forum. 2 months ago

Hi Peter,
You probably missed this issue. Could you have a look at it?
Thanks,
Camiel

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Camiel Severijns created a new topic ' Cannot download image with Atik11000 and driver 1.22' in the forum. 3 months ago

Hi,
I have just installed the 1.22 version of the Atik CCD driver. It turns out that images cannot be downloaded. I have attached the last part of the output from atik_ccd_test.
I ran into this problem when I was investigating another problem that I encountered with the 1.13 version: I have noticed that exposures of 2.1 seconds have a much lower mean ADU level than exposures of 2.0 seconds (almost 1.5 times smaller) instead of larger. I don't have this when I use the Artemis software on Windows: with this software the mean ADU level is larger as it should. Any idea what might cause this problem?
Regards,
Camiel

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Camiel Severijns created a new topic ' Problem with latest Pulsar2: PierSide property' in the forum. 4 months ago

Hi Jasem,

I have noticed that you have moved the PierSide property from the pulsar2 driver to the INDITelescope driver. It appears that this property is now read-only. However, it must be read-write because it is used slightly different from what you might expect. This property must be set by the user when syncing the telescope coordinates to a star in order to tell the controller what side the telescope is on. On the pulsar it is a write only property. Can you undo this change?

Regards,
Camiel

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Hi,
I have used a setup of a ss2000pc and an SBIG camera for several years in the past. I've always used an ST4 cable between the camera and the ss2000pc. This worked without problems. I think that the pulse-guiding that is referred to in the openphd documentation is the kind that is build into the controller. The ss2000pc does not support pulse-guiding commands.
Best regards,
Camiel

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 5 months ago

Hi Paolo,
I have used the version of the code dated to two weeks ago without problems from kstars and using the alignment tool in Ekos. I've never entered coordinates directly into Ekos but I would not expect that this makes a difference to the driver: it just needs a proper set of coordinates.
Regards,
Camiel

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Camiel Severijns created a new topic ' Two questions on how to implement a feature' in the forum. 5 months ago

Hi, I would like to implement two features but I am not sure about the best approach to this within the INDI framework.

1. My mount supports a meridian swap command. My idea is to add a property to the driver that starts the swap with a push button. How can I best implement this push-button style behaviour? Can I user the INDI Switch property for this?

2. I have developed a automated dew heater. This device also measures the tube temperatures of my imaging and guiding telescopes. I would like to use this information to build temperature compensation in the INDI SmartFocus driver. My idea is to have a single executable implement three INDI drivers: a dew controller and two temperature sensors. The latter can then be snooped by the focuser driver to implement temperature compensation. My second question is how can I implement these three drivers in a single executable?

Regards,
Camiel

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Paolo thanked Camiel Severijns in topic Pulsar2 connection fails 6 months ago
Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

Hi Jasem,

I' ve updated the page. The changes in the driver up-to-now concern mostly the internal workings. One thing which is not so obvious, is that before syncing the mount one must indicate on which side of the pier the telescope is mounted. (Note that this has nothing to do with the meridian flip.)
Once the driver turns out to be stable we can start adding features such meridian flip detection.

Regards,
Camiel

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

I've finally found a reliable solution to the time out problems I was having with the Pulsar controller. Investigation of the input and output streams to the controller showed that the Pulsar is sometimes late by several seconds sending a response to a command. The delay varies in size so that simply flushing the input stream does not always work: in many cases it flushes nothing or only the first part of the delayed response. The remaining delayed response is than ready as the response of the following command send to the Pulsar. Thus commands and responses become out of sync.

In order to establish reliable communication with the Pulsar after a time out, one must resynchronize the commands and responses. This can be done by sending ACK characters until two subsequent positive responses to the ACK are received. In that way we can be sure that after the next command we can read the response to that command.

I've updated the lx200pulsar2 driver in the repository with this fix. Give it a try and let me know whether it works on the Pulsar2.

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

I checked the Pulsar documentation on the ":MS#" command: it is supposed to return 0 on success and 1 on failure. So, the slew should have been started according to the logging output. Did it?
The info on the number of attempts is maybe confusing you too. Once I get the time out problem solved, I'll clean up the code so that it silently ignores extra '#' characters in the response strings send by the Pulsar.

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

Hi Paolo,

Good that its working again. I think that I read a comment about the :MS# command. I'll have a look at that.
There is one problem that remains to be solved: I have noticed that at some occasions (typically once in an hour but very irregularly) time out errors occur while the driver is reading the RA/DEC coordinates. Since there were some remarks in the ASCOM code about this I wander whether you see this problem too? If so the fix is (for the time being) to disconnect and reconnect the driver. It would be useful if you could provide a log file too.

Regards,
Camiel

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

Hi Paolo,

Did you try the modification?
The reason for the changes is that I kept having problems with the communicatoin between my PC and the Pulsar module. The driver is working fine for my setup now which it wasn't in the past. From the documentation (unless it is out of date) and from the ASCOM driver code, I make up that it should work for both Pulsar vesions. Reverting to the previous version is fine with me.

Regards,
Camiel

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

Hi Paolo,

My Pulsar is the original one not the Pulsar2. The LX200 commands supported should be the same except for the pulse guiding commands that Pulsar2 supports.

What is shown in the lines containing RES is the literal response from the Pulsar. The ? character corresponds to the degree character. That this character changes later on is the way it is implemented in the Pulsar. Anyways this character is ignored when parsing R.A. and Decl. values.

From the remaining parts of the logs I get the impression that some commands are not responding in the same way as with my old Pulsar. E.g., setting the time works fine but while setting the date the response is RES<#> which seems to be the closing '#' of the previous command. My Pulsar doesn't send this character. To test this I'll modify the driver so that it will ignore these extra characters.

Let me know whether that solves your problems.

Regards,
Camiel

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Camiel Severijns replied to the topic 'skysensor2000PC -Error reading RA/DEC not in .logs' in the forum. 6 months ago

Hi,

Like any LX200 compatible device, the SS2000PC can use high or low precision coordinates. It looks like yours is set to low precision. This can be changed using the ':U#' command if I remember correctly.

The "Error Reading RA/DEC" messages occurs in the driver for another mount that I have been working tool. The ┬┤funny┬┤character you see in the declination value is a character code for a degree sign and is perfectly normal. In the case of the Pulsar driver I could eliminate the error messages by rewriting the code sending and receiving the LX200 commands.

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

Since I use my own development version, I have just checked that the driver from the repository also works with my setup. Slewing, parking, enabling/disabling PEC, pole crossing, refraction correction all work. Do you have a log file?

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Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 6 months ago

This pull request (#141) is still open in the code repository.

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Paolo thanked Camiel Severijns in topic Pulsar2 connection fails 7 months ago
Camiel Severijns replied to the topic 'Pulsar2 connection fails' in the forum. 7 months ago

Indeed, there was a bug in ISGetProperties. I have checked in a bug fix that solved this problem (at least for me).
Regards,
Camiel

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Camiel Severijns replied to the topic 'Problem with Atik EFW2' in the forum. 7 months ago

Okay, that put me on the right track I think.
The USB cable is fine since I use it to connect to my PC too (via a powered USB hub) and found no problems. This also excludes the power supply of the wheel too. (It also works fine using the Atik software under windows.)
It turns out , that when the wheel is the only device connected to my RPi I don't get the error messages.
My solution is to connect all other device via a powered USB hub to my RPi. So far the wheel is working properly. When I connect it via the USB hub, the errors return. This confirms what you found. It does seem strange to me though since the wheel does work correctly with my PC and a hub. Maybe this hints at a problem in the Raspian kernel?
Regards,
Camiel

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