I'm trying to add a pyvcp panel to control a spindle vfd. To take 
advantage of the 'at-speed' signal from the vfd to inhibit motion until 
ready, the motion component of LCNC needs to be aware of the spindle 
command state- from the documentation:

*motion.spindle-at-speed* IN BIT

Motion will pause until this pin is TRUE, under the following 
conditions: before the first feed move after each spindle start or speed 
change; before the start of every chain of spindle-synchronized moves; 
and if in CSS mode, at every rapid->feed transition.

but I can't find a reference to HAL input pins for spindle control in 
the motion control component documentation. Is that communication done 
by other methods (NML??- gasp!).

Can someone point me to a sample configuration that properly integrates 
an 'at-speed' signal into LCNC?

Thanks in advance

-ldw
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