Hal for control of analog output of 5i25 nd 7i76

Hi everybody,

I am migrate from my antique 7i78 card to 7i76 because I need more GPIO pins in my CNC Laser. But my surprise that it give a error that say don´t exist pwm component in this configuration. I try use PncConf but doesn´t exist any configuration for PWM or analog channel. How can I configurate the analog output in the hal file?

Thanks

The single analog output on the 7I76 is called
spinout (short for spindle output)
in addition there are spinena and spindir (enable and direction)

A good way to see what pins are available is to start linuxcnc with a minimal
HAL file that will start with no assumptions about available pins
and then run

halcmd show pin > mypins

in a terminal

(you can do parameters similarly)

halrun
loadrt hostmot2
loadrt hm2_pci
show all

I try it but don't found the spinout pin or spinena or spindir why?

pin names would be:

hm2_5i25.0.7i76.0.0.spinout
hm2_5i25.0.7i76.0.0.spindir
hm2_5i25.0.7i76.0.0.spinena

if you dont see these (or the 80 or so other pins with 7i76 in their names)
its most likely that you dont have field I/O power supplied to the 7I76

its most likely that you dont have field I/O power supplied to the 7I76

Why Is absolutely necessary connect field power to see this pins? Can you explain me please?

Because the capability of the remote I/O is
unknown by LinuxCNC until communication is established
and the remote I/O runs on field power so cannot communicate
if field power is not present.

Now I understand. The spindle signals is into field signals and it communicate with 5i25 with a field protocol and it aren't active while does not exist field power supply. Thanks now I can see the pins

Its seems funny but its a great advantage for flexibility,
For example if we add a firmware option to the remote I/O
(or a new remote I/O card) the pins appear to HAL automatically
without any other changes in linuxCNC required