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lx200zeq25 driver issues wrong guide commands

Open nelsonsousa opened this issue 1 year ago • 0 comments

Mount: iOptron iEQ45 (HC 8407) Driver: lx200zeq25

Observed behaviour:

  • violent oscillations when guiding is on and sending pulses to the mount that start immediately after guiding starts.
  • no oscillations are seen in the logs when guiding corrections are turned off.

I've done quite a bit of research and noticed in the logs that the pulse commands are sent as "CMD <:Ms2500#>" (moving south) and likewise for the other directions. But iOptron's protocol (https://www.ioptron.us/ASCOM/RS-232_Command_language2013.pdf) states the commands as ":MsXXXXX#", and the document also states that the length of each number must be exact.

The driver in function LX200ZEQ25::SendPulseCmd formats the command using 4 digits only. This is what is causing the issue, I'm guessing the mount interprets ":Ms2500" as 25k ms instead of 2.5k ms.

I also use Indigo with my gear, the indigo driver formats the command using 5 digits and guiding works like a charm.

nelsonsousa avatar Sep 20 '24 21:09 nelsonsousa