Reverse spindle no pwm

I'm trying to get a spindle work in both directions, but i do not get any pwm output when i start the spindle in M4

i'm using pdm mode with no offset and a scale of 18900

max-dc 0.4

the spindle at maximum speed is roughly 6500RPM

i do not use outputs to turn the spindle on, the spindle is stopped at pwm 0

Also i am using the soft start hal lines

and i only connected net spindle-rev motion.spindle-reverse => parport.0.pin-17-out


any help???

Attached i made a simple stepconf to demonstrate what i mean, check pin curr-dc of pwmgen and notice that you get a value only when the spindle is going clockwise nothing when you go ccw

Resolved using abs component in hal to have the spindle speed always positive.

Isn't this a bug/ommission in stepconf that it does not set the PWM mode correctly?

I think a good place to add this in the docs would be here

linuxcnc.org/docs/html/examples_spindle....#Spindle%20Direction

it says that all you have to do is connect a pin to have the spindle running in the opposite direction, but actually if you don't hijack the spindle speed out with abs you will not get any frequency out of pwmgen

Are we saying that stepconf should always use absolute component with the spindle PWM?
This would seem to be right but I have not dug in to see yet.

Yeah stepconf should always use abs with the PWM, it would make things easier when you add the direction of the spindle it will still work...

Is it really ABS thats needed or the proper PWM mode?
PWM mode 1 should do the right thing without adding any other comps
if PWM mode 1 does not do the right thing, the PWM comp needs to be fixed