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Thread: Python user space HAL component

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  1. 12-14-2020, 03:24 AM #1
    kstrauss
    kstrauss is offline Junior Member
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    Apr 2013
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    Python user space HAL component

    I'm trying to create a user space HAL component in Python but I am having little success. Ultimately I want to read HAL pins and output the values to a serial (USB faked) port. Using "admin halcmd loadusr path" I can get my program to generate error messages to the log file but not actually do anything useful. Can anyone post a simple, working, Python script for comparison to my failed efforts?
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  2. 12-16-2020, 09:03 AM #2
    rodw
    rodw is offline Registered
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    May 2015
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    686

    Re: Python user space HAL component

    Try the Linuxcnc docs Creating Userspace Python Components
    I've never used Python to create components and write mine in C but for comms, Python is the way to go.
    There should be some examples of comms you can borrow from the Linuxcnc git repo
    This one that talks to a plasma cutter by RS485 comes to mind
    https://github.com/LinuxCNC/linuxcnc...omps/pmx485.py
    Rod Webster
    www.vehiclemods.net.au
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