TTL trigger output

I would like to start a measuring device with a TTL trigger after a programmed move. Can I do that with an M code?

Thanks
Bart

The M code is a file located in the path defined in the ini.
Inside the M code you can define one or more output pins to turn on/off.
I hope that it is what you wanted.

I would like to start a measuring device with a TTL trigger after a programmed move. Can I do that with an M code?

Depending upon how exactly youre going to trigger it, see the M codes, M62 through to M68

www.linuxcnc.org/docs/html/gcode/m-code.html#sec:M62-M65
www.linuxcnc.org/docs/html/gcode/m-code....ec:M67-Analog-Output
www.linuxcnc.org/docs/html/gcode/m-code....ec:M68-Analog-Output

regards

I would like to send and receive TTL signals on my idle A axis.
This is what I think I should do, but I would really appreciate
guidance so I don't burn anything.

In standard_pinout.hal I have
net Astep => parport.0.pin-09-out
net Adir => parport.0.pin-08-out

Can I change that to
net Mstart => parport.0.pin-8-out
net Mdone <= parport.0.pin-9-in

And then in core_stepper.hal There is no mention of the A axis, so add
net Mstart motion.digital-out-00 => parport.0.pin8-out
net Mdone motion.digital-in-00 <= parport.0.pin9-in

And then in my G-Codes
m63 p0
g0 x1
m66 p0 l2 q999
g0 x2

Am I close?

Thank you,
Bart

gillinderglass wrote: Am I close?t

Better, I think you are all the way there.

I followed the instructions in 2. Pause & Resume in http:/linuxcnc.org/docs/html/hal/halui_examples.html and got a signal on my output pin! I know that doesn't sound like much, but I put in a lot of time to get there. I don't understand the classic ladder instructions. Could somebody please tell me, in words that an idiot can understand, how to set up an EIC timer?

Thanks,
Bart