In terms of myfp2, the standard should be that commands are :xx and terminated with #, commands being 2 characters long (maybe followed by parameters of variable length). This shouldve been consistent from 2014 and I cannot really understand when and if it ever changed to less than 2 [in which case the firmware wouldve rejected the command]
You can rest assured this will not change.
There is as I understand it, no plans to add or change commands in the forseeable future. There should be no reason to change the test for firmware version (at 291) for any future release. At present there are also no plans to add additional features in the pipeline, for 2 reasons - we are running out of space, and effort is now redirected to use the esp8266/esp32 based chips (which solves issue1 running out of space).
Not quite that simple as a command can be a command or a command that also includes parameters which are variable lengths
Accepting that commands are two characters, then conversion to an int type value based on those two chars and thus switch(cmd) becomes easy
I had a proper play last night, though still quite cloudy, and could not get the issue with losing absolute and maximum position. Even powering everything down and starting again, all values were retained as expected.
Could you try with a completely fresh install, and again see if you can come up with a sequence that will reproduce the error you are seeing?
I should point out that I observe the same issue with the kstars/indi Windows build (Windows 10) as well as directly with the kstars/indi build on Stellarmate on the Raspberry Pi
Shutting down the client windows and opening them up again will sometimes *not* show a value in the fields (hi-lighted in red in my screen captures) then for the same session shutting down
the client windows and stopping/re-starting indi will sometimes show a value in the field.
I observe that shutting down kstars completely and then restarting is another way that I'm able to reproduce the issue (sometimes)
I've not yet worked out the exact pattern/scenario to reproduce this consistently but I'll stick with it until I do.
A fresh install is a good idea. I have a vanilla build of Stellarmate on another SD card which I can bring into play.
I'll see about starting from that sd card then fetch the nightly build and then see if I can reproduce the issue
I think that the only way you might to the bottom of this is if the serial log files are looked at,
Thant would determine if it is a serial timeout issue, a serial timing issue on connect, or if it is a problem in either the firmware or higher up the chain.
2. Start the INDI server
All devices defined in the equipment profile will start-up as expected
3. Open Kstars
4. From the Kstars "Tools" menu select "Ekos"
5. "Start" Ekos from the "Ekos Profile - KStars" GUI
In my case, I have it set in my equipmemt profile to "auto connect" all devices
6. Click "Connect" to connect all devices defined in the equipment profile
7. Once the "INDI Control Panel - Kstars" screen opens then navigate to the MyFocuserPro2 page
Note the values shown in "Absolute Position" and "Max Position" fields
e.g. In my case see the first screen capture below
Note the empty fields for Absolute Position and Max Position
8. Close the "INDI Control Panel - Kstars" screen
9. Click "Disconnect" to disconnect all devices
10. Stop Ekos
11. Close Kstars
Follow steps 3 through 7 again
Now note that this time once you get to step 7, the Absolute Position and Max Position fields are now populated as expected
e.g. In my case see the second screen capture below
12. Close all screens and disconnect devices
13. Stop the indi server via the Stellarmate web manager stellarmate.local:8624
Repeat the steps 1 through 7 to reproduce the issue again
If you don't use Stellarmate, substitute steps 1,2 and 13 for the equivalent steps for your set-up
I think we may have a misunderstanding here. Your first picture clearly shows the abs and max fields are filled in. The zeros are in the set fields, what ever value you choose to put in those fields and then click set will either move the focuser to the new position, or update the max field.
What causes the behaviour with the fields "to the right" getting populated/non-populated given the steps followed ?
NB: Nothing was manually changed when walking through those steps yet the fields "to the right" got set to zero and then subsequently got populated without any intervention
All I can say is that it is not driven from the driver. At the end of the day is it a bug or an annoyance, either way it is unexpected behaviour. Maybe ask the question in a separate thread, is there a gui forum?