To do the above suggestion to get a hal pin that shows the commanded S speed even when the spindle is stopped. The link gives instructions for creating a python script that reads what the commanded S speed settinging is from the Gstat python module and then creates a hal pin and writes the value to it.
You will need to create at python script with the following, and save it as a file in your config directory named "spindle.py" and make that file executable.
Code:
#!/usr/bin/env python3
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import GObject
from gi.repository import GLib
import hal
from hal_glib import GStat
GSTAT = GStat()
# callback to change HAL pin state
def mode_changed(obj, data):
h['speed'] = data
# Make a component and pins
h = hal.component("spindle_setting")
h.newpin("speed", hal.HAL_FLOAT, hal.HAL_OUT)
h.ready()
# connect a GSTAT message to a callback function
GSTAT.connect("s-code-changed",mode_changed)
# force GSTAT to initialize states
GSTAT.forced_update()
# loop till exit
try:
GLib.MainLoop().run()
except KeyboardInterrupt:
raise SystemExit
Then load/run that python script when you start Linuxcnc by adding this line to your hal file for your config. (Replacing YOUR_CONFIG with the name of your config dir.)
Code:
loadusr python3 ~/linuxcnc/configs/YOUR_CONFIG/spindle.py
You can even test this before adding it to your hal file by simply running the python script from command line while Linuxcnc is running. Just type "python3 ~/linuxcnc/configs/YOUR_CONFIG/spindle.py" and hit enter. (After first creating the spindle.py file, saving it to your config dir.)
