Changing input signal

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28 Nov 2015 14:18 #65941 by remartinez
Running PathPilot on non tormach with Mesa5i25 and C35 BOB. My limit switches are proximity switches and are active until its tripped. How do I change the signal reading on the hal file to correct this issue?
Below is the section of the hal file on the limit switches.

Thanks,
Raul

# home switches

# enclosure door support
# door-sw-installed post-gui HAL pin changes HAL routing of signals
# x-axis 5i25 limit input becomes door switch input
# x-axis switch gets rewired in series with y switch
#
# controlled by door-sw-installed
# a lut5 comp as a bit mux switches axis.0.home-sw-in axis.0.neg-lim-sw-in axis.0.pos-lim-sw-in
# between receiving x-axis switch input or y-axis switch input
# another mux2 comp switches door-sw-in between receiving FALSE or x/door switch input
#
# door-sw-in is an input pin to the spindle comp
# when TRUE the spindle comp limits RPM to a slow value, e.g. 1000 RPM
# when FALSE the spindle comp does not limit spindle RPM
#
# when door-sw-installed is TRUE UI homing routines must reference x and Y mutually exclusively

# must noise debounce inputs - otherwise coolant on/off can cause spurious estops
net home-limit-x-raw <= hm2_5i25.0.gpio.014.in => debounce.0.0.in
net home-limit-y-raw <= hm2_5i25.0.gpio.015.in => debounce.0.1.in
net home-limit-z-raw <= hm2_5i25.0.gpio.016.in => debounce.0.2.in
#setp debounce.0.0.in 1
#setp debounce.0.1.in 1
#setp debounce.0.2.in 1

# route limit inputs through AND gates to enable switches via UI
# also net x-axis switch input to door-limit-in.in1
net and-home-x debounce.0.0.out enable-limit-x.in1 door-limit-x-lut.in-0 door-limit-in.in1
net and-home-y debounce.0.1.out enable-limit-y.in1 door-limit-x-lut.in-1 door-limit-y-lut.in-0
net and-home-z debounce.0.2.out enable-limit-z.in1

# post gui connects this to the UI for disabling the limit switch inputs
net limit-switch-enable enable-limit-x.in0 enable-limit-y.in0 enable-limit-z.in0

# door/
# x-homing door-sw-configured - Y in - X in -- out axis.0.*-lim-sw-in -- lut5 weight
# 0 0 0 0 | 0
# 0 0 0 1 | 1 0x0002
# 0 0 1 0 | 0
# 0 0 1 1 | 1 0x0008
# 1 0 0 0 | 0
# 1 0 0 1 | 1 0x0200
# 1 0 1 0 | 0
# 1 0 1 1 | 1 0x0800

# 1 1 0 0 | 0
# 1 1 0 1 | 0
# 1 1 1 0 | 1 0x4000
# 1 1 1 1 | 1 0x8000
# ----
# 0xCA0A
setp door-limit-x-lut.function 0xCA0A

# connect X and Y to axis.0.*-lim-sw-in via lut5-based mux configured as above
net x-lim-out door-limit-x-lut.out axis.0.home-sw-in axis.0.neg-lim-sw-in axis.0.pos-lim-sw-in

#
# x-homing door-sw-configured - Y in -- out axis.1.*-lim-sw-in -- lut5 weight
# 0 0 0 | 0
# 0 0 1 | 1 0x0002
# 0 1 0 | 0
# 0 1 1 | 1 0x0008
#
# 1 0 0 | 0
# 1 0 1 | 1 0x0020
# 1 1 0 | 0
# 1 1 1 | 0
# ----
# 0x002A
setp door-limit-y-lut.function 0x002A

net y-lim-out door-limit-y-lut.out axis.1.home-sw-in axis.1.neg-lim-sw-in axis.1.pos-lim-sw-in

net x-is-homing axis.0.homing door-limit-x-lut.in-3 door-limit-y-lut.in-2

# door switch to spindle comp is former x-axis limit input ANDed with NOT door-sw-configured from UI
# if door-sw-configured is TRUE then the spindle comp input follows the X limit input
# if door-sw-configured is FALSE the the spindle comp input is always FALSE

# inverter NOT gate
net enc-door-switch-configured door-limit-x-lut.in-2 door-limit-y-lut.in-1 door-limit-in.in0 tormachspindle.enc-door-switch-configured

# connect X limit inputs to axis.2.*-sw-*
net z-lim-out enable-limit-z.out axis.2.home-sw-in axis.2.neg-lim-sw-in axis.2.pos-lim-sw-in

# UI can display this
net enc-door-switch-status door-limit-in.out tormachspindle.enc-door-switch-status

############

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28 Nov 2015 15:25 #65946 by ArcEye
Replied by ArcEye on topic Changing input signal
I would have thought easiest is simply hm2_5i25.0.gpio.NNN.in_not

Will just invert the signal

regards

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28 Nov 2015 15:32 - 28 Nov 2015 15:32 #65947 by cncbasher
Replied by cncbasher on topic Changing input signal
these pins appear to be your home & limit switches
net home-limit-x-raw <= hm2_5i25.0.gpio.014.in => debounce.0.0.in
net home-limit-y-raw <= hm2_5i25.0.gpio.015.in => debounce.0.1.in
net home-limit-z-raw <= hm2_5i25.0.gpio.016.in => debounce.0.2.in

add _not will invert them
so change to :
net home-limit-x-raw <= hm2_5i25.0.gpio.014.in_not => debounce.0.0.in
net home-limit-y-raw <= hm2_5i25.0.gpio.015.in_not => debounce.0.1.in
net home-limit-z-raw <= hm2_5i25.0.gpio.016.in_not => debounce.0.2.in

beware this will change the sense for all inputs connected to these pins , so if some need to be kept the same
we may need to modify the files some more
Last edit: 28 Nov 2015 15:32 by cncbasher.

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28 Nov 2015 15:56 #65951 by remartinez
Replied by remartinez on topic Changing input signal
Perfect.
thank you ArcEye and cncbasher.

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