M4 doesn't work

Hi,
I am running out of ideas, so i decidet to ask here for help. The issue is, that LinuxCNC is not running M4 commands.

My setup is a 7i95 and a Servo Motor for the Spindle, which is controlled by a quadrature signal.
The motor works, i can send M3 S... commands and they are executed, Speed is correct.
However, when i send M4 S... commands, the spindle stops and nothing happens.

I know, the motor works. Flipping the direction also works by inverting the step_scale in ini and exchanging the A B signals of the quadrature signal.
Looking in the HAL i can see with M3 halui.spindle.0.is-on, halui.spindle.0.runs-forward, spindle.0.forward, spindle.0.on is all turned on.
with M4 only halui.spindle.0.runs-backward is turned on.

In the Forum i found this thread, which experiences pretty much the same behavior, however i am running on AXIS and i don't think i have the same issue.

Here is my complete Setup: github.com/AlexmagToast/WeilerPrimusCNC_LinuxCNC_config

Thanks in Advance,
Alex

Forgot to paste the link to the Thread:
forum.linuxcnc.org/gmoccapy/36200-spindle-ccw-hanging

What happens in these lines?
net spindle-manual-cw     halui.spindle.0.forward <= arduino.din.46
net spindle-cw  => arduino.dled.2
net spindle-manual-ccw    halui.spindle.0.reverse <= arduino.din.42
net spindle-ccw  => arduino.dled.0
net spindle-manual-stop   halui.spindle.0.stop <= arduino.din.44

Usually should pin  spindle.0.on go high in case of M3 and M4.

these are Hardware Buttons to start and stop the Spindle with an LED inside that lights up depending on the State.

Usually should pin spindle.0.on go high in case of M3 and M4.
Yes, thats what i am thinking too. Maybe i stubled on a Bug. Im currently running a 1.9pre Version.

As chris@cnc suggested, maybe something in halui or the user
interface is preventing M4 from working properly.

I would run LinuxCNC, issue a mdi m4 s100 and post the results of

halcmd show pin spindle*

Here are the results in the attachment:

Maybe have a look at these pins in halscope when issuing M4 S...:

halui.spindle.0.forward
halui.spindle.0.reverse
halui.spindle.0.stop

Also commenting the lines that use the above pins and try MDI command M4 S... may give you some clue as to what is going on.

[edit]
Just to be on the same page, if you comment out these lines in your hal, does MDI m4 S... work or not?
net spindle-manual-cw     halui.spindle.0.forward <= arduino.din.46
net spindle-cw  => arduino.dled.2
net spindle-manual-ccw    halui.spindle.0.reverse <= arduino.din.42
net spindle-ccw  => arduino.dled.0
net spindle-manual-stop   halui.spindle.0.stop <= arduino.din.44

Look like something is preventing M4 from working, maybe need to look at all spindle related pins/signals

halcmd show all | grep spindle > spindle.txt

and post spindle.txt here

Thanks for your suggestions.
@Aciera even with the lines fully commented out, nothing changes in the behaviour. so : no work.

@PCW how do i run this command?

i selected every spindle pin in halshow and append a screenshot here, this is after M4 S100 was issued.

now i have also upgraded to Linuxcnc 2.10.0. pre0, but the issue remains.

Again thanks for your help, guys!
-Alex

Run / start linuxcnc and issue a m4 s100

then in a terminal window, type

halcmd show all | grep spindle > spindle.txt

and post spindle.txt here