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Add PMTK GPS helper script, minor fixes and improvements to ptp4l-gm-set.sh #42

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Add PMTK GPS helper script, minor fixes and improvements to ptp4l-gm-set.sh #42

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@Deadevilgrounds Deadevilgrounds commented Apr 14, 2025

This PR includes the following changes:

New Feature:

  • Added a helper script for sending and receiving PMTK commands to/from GPS modules. This is useful for debugging or configuring GPS units that support the PMTK command set.
  • python files/send_pmtk.py (to run it, uses argparse for neater cli help)

Improvement to ptp4l-gm-set.sh:

  • Added a delay to ensure ptp4l is fully up before sending pmc commands. Without this, PMC may fail to apply settings reliably.
  • Removed an unnecessary extra space.

I mainly created this for my own benefit, but it might be useful for someone else. 😄

Bates Larsson added 2 commits April 14, 2025 18:01
Add helper script to be able to send and listen to PMTK commands for …
680ea46 
…GPS modules
Removed extra line space
4023588 
Added delay script to not allow the PMC command to run until PTP4l has started, otherwise the PMC settings wont take
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