Halui Component

Hello,

I'm wiring my own Halui Component and need some information from Axis. Is there any way to obtain a Halui signal that toggles true when somebody pushes the "Step" button in axis? I'm referring to something similar to "halui.program.is-running" or "halui.program.is-paused" for those types of functions?

Regards,

@Steven,

Good question.

The halui pins : linuxcnc.org/docs/html/man/man1/halui.1.html

Look for the line : halui.program.step bit in
(pin to step the program gcode line by gcode line forward) (backward stepping is provided in reverse run).

so in your hal it could be connected something like this, this is a pure example, not realistic :
net yourstep => halui.program.step => hmi595.inputbutton

In axis we have : ("T", _("Step program")),
The keyboard button T for step function.

Maybe connect this python script to your hal :

Activate_step_program.py :
from pynput.keyboard import Key, Controller
import time

time.sleep(200)
keyboard = Controller()
keyboard.press('t')
keyboard.release('t')

source : nitratine.net/blog/post/simulate-keypresses-in-python/

acording to the doc
linuxcnc.org/docs/html/man/man1/halui.1.html
you can have
halui.program.step
connected
and with a modchange it might work to get step on t

Is it possible to determine if Axis has commanded a step function by pressing the step icon as well as pressing "T" on the keyboard in halui?

Is there any way to read an Axis G-code line in halui?

The keyboard T button is outside of any halui connection.

I have made a little axis.py source code modification to make a program-step connection to any hal signal.
axis.py is located in c: usr/bin/axis

line 80 axis.py and add after this line :
h = hal.component("axis")
h.newpin("step",hal.HAL_BIT,hal.HAL_IN)

add after line 877 of axis.py add :
if h == 1:
ensure_mode(linuxcnc.MODE_AUTO)
c.auto(linuxcnc.AUTO_STEP)

Output is a hal step connection named : axis.step (you can see this in the section : pins => axis => step.
To set the step parameter true, type in hal : setp axis.step True
To set the step parameter false, ype in hal : setp axis.step False

When i test the step button T, i mention the machine has to be in pause.
So almost the same can can be used to set the machine in pause first. This can automate the process trough hal.

Grotius,

I appreciate the support. I think I'm looking for the opposite of what you described above. When I step through the g-code in axis, (either using the step icon, or typing "t") I'd like to be able to use that step signal in halui for developing a custom halui component.

Regards,