Charge pump from Mesa 7i96 in 4+1 config?

To use the LCD you would normally use the lcd component

man lcd

for the keypad, the matrix_kb component would be used

man matrix_kb

sorry i'm not a developer and these things are really not trivial.
anyway probably found good example which i wasn't able to find yesterday via regular search.
may be it will help somebody else.
forum.linuxcnc.org/47-hal-examples/32725...nt-with-7i73?start=0

I've been away from this project. Hoping to revisit soon. I have just about done the wiring for all the buttons to my 7i73. Haven't started with the HAL implementation yet.

guys now really need some help.
above example helped me to connect LCD and display axis position - fine, good starting point
also was able to some connect knobs and wheel and currently i see in halmeter:
joint-select-a/b/c/d changes to true accodingly when i turn axis selector knob
jog-incr-a/b/c/d/e changes to true accordingly when i turn jog increment knob
axis-selected-count also changes when rotating the wheel

help i feel i really need with:
what else i need to connect to make this thing moving ideally when homed and not homed state? (no_force_homing enabled in ini)
please treat that as i need advice for dummies,
but we can make a deal - you help me turn this thing nice and i can prepare nice manual with wiring pictures etc for other dummies like me using 7i73 as pendant card.

also LCD contrast thing wasn't cooperative. tried couple of inputs and always got an error like it doesn't understand
lcd.00.contrast part of command without the matter what i put after 'contrast' word. do i need other thing before it like loadrt or something?

did you try
setp hm2_7i96.0.7i73.0.0.contrast 1234

just tried,
EMC runs, but lcd does not react to various numbers at all.
will override it by hardware potentiometer then.

any direction for other things above?

I had forgotten how that works, you need to set the contrast via the
LCD comp, that is set lcd.00.contrast to 0.0 to 0.8

The full range should be 0.0 to 1.0 for 3.3V to 0V on the contrast pin
but I think there is a scaling error, I will look into the scaling error.

As far as homing setup goes the best guide is the LinuxCNC documentation:

linuxcnc.org/docs/2.8/html/config/ini-homing.html

thanks, don't worry much about contrast, there is a workaround.
second day i'm sitting and looking how to connect above mentioned selectors on MPG to physical movement of axis.
i'm completely not getting the logic of it in examples i found

so to speak lets say i have
joint-select-a = true - assuming this needs to say to EMC i'm choosing X axis to move
jog-incr-a = true - assuming this needs to say to EMC that i chose first value from jog increment list
axis-selected-count counts the ticks from handwheel
which things i need to connect those to move X axis in 1mm increment when rotating the wheel
i really do like linuxcnc and mesa cards but config part is probably the showstopper for many

The LCD contrast setting does work via the lcd component (just verified)

To understand jogging you need to know which motion pins do what
The first step is to read the manual page on the motion component
and look at the jog related pins:

man motion

okay
"This manual page is horribly incomplete."