Setting a hal pin from Gcode

Hi
I am trying to set a hal pin from gcode. I can read a pin but I am having trouble setting one.
This is my attempt

the error is " Internal error: could not assign #<_hal[hurcotc.move-done]>"

Hi

They are read only.

The FEATURES=12 or whatever gives you access to the values, but you cannot change them, that would be the Holy Grail.

If the pin can be written to, you can do it from a user M code

halcmd setp <pinname> value type thing

Whether it is linked and what type of pin it is is going to determine if it can be written

regards

They are read only.

Damn that sucks. I will have to rethink. maybe use a timer to set a pin.

There was a way to wait for a signal in a user M code that uses a shell script. I cannot remember however how to do that. Any suggestions

mariusl wrote: There was a way to wait for a signal in a user M code that uses a shell script.

www.linuxcnc.org/docs/html/gcode/m-code.html#sec:M100-to-M199

But to set a HAL pin value from G-code the simpler way is to use:
www.linuxcnc.org/docs/html/gcode/m-code.html#sec:M62-M65
and net the HAL pin to motion.digital-out-00 (or whatever)

Thanks Andy

Sorry I took so long to answer but I dont get any notifications from the forum any more.