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lx200zeq25 driver issues wrong guide commands #2117

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nelsonsousa opened this issue Sep 20, 2024 · 1 comment
Open

lx200zeq25 driver issues wrong guide commands #2117

nelsonsousa opened this issue Sep 20, 2024 · 1 comment

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@nelsonsousa
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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.

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This issue has been inactive for 60 days and is being marked as stale.

@github-actions github-actions bot added the Stale label Nov 20, 2024
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