SOLVED - 6i25 Can't see swicthes change from test box

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29 Sep 2022 08:30 - 29 Sep 2022 08:31 #253000 by macsddau@linuxcnc
When I was using the mother board parport I have made a test box.


This box is wired according to this schema: 
 

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The HAL follow this pinout:
# --- MACHINE-IS-ENABLED ---
setp hm2_5i25.0.gpio.007.is_output true
net machine-is-enabled => hm2_5i25.0.gpio.007.out

# external input signals

#--- ESTOP-EXT ---
net estop-ext <= hm2_5i25.0.gpio.003.in_not

# --- HOME-X ---
net home-x <= hm2_5i25.0.gpio.013.in

# --- HOME-Y ---
net home-y <= hm2_5i25.0.gpio.014.in

# --- HOME-Z ---
net home-z <= hm2_5i25.0.gpio.015.in

Using test box has no reponse in linuxcnc. Is there something wrong with theese datas ? I suspect 6i25 output voltage and 10k pullup/pulldown resistors of the test box.
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Last edit: 29 Sep 2022 08:31 by macsddau@linuxcnc.

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29 Sep 2022 09:44 #253007 by tommylight
Mesa 6i25 inputs have their own pullups, so they need to be grounded to trigger.
Shorting them to gnd works, or use a DVM set in Diode mode, red probe on gnd, black probe on inputs.

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29 Sep 2022 09:51 #253009 by macsddau@linuxcnc
Did I have to move W4 down to disbale 6i25 internal pullup resistors ?

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29 Sep 2022 09:52 #253011 by tommylight

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29 Sep 2022 10:04 #253012 by macsddau@linuxcnc

Mesa 6i25 inputs have their own pullups, so they need to be grounded to trigger.
Shorting them to gnd works, or use a DVM set in Diode mode, red probe on gnd, black probe on inputs.
 

I don't know what is is a "a DVM set in Diode mode".
Is ther any shcmatics for shorting to gnd or dvm set ?

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29 Sep 2022 10:09 #253013 by macsddau@linuxcnc

Mesa 6i25 inputs have their own pullups, so they need to be grounded to trigger.
Shorting them to gnd works, or use a DVM set in Diode mode, red probe on gnd, black probe on inputs.
 
I don't know what is is a "a DVM set in Diode mode".
Is ther any shcmatics for shorting to gnd or dvm set ?
 

Internet is your friend. I kwon what is dvm.
The test box works with parport. Wiring is OK.

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29 Sep 2022 10:09 #253014 by tommylight
DVM = digital volt meter
The following user(s) said Thank You: macsddau@linuxcnc

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29 Sep 2022 10:13 #253015 by macsddau@linuxcnc
I will make a new test box

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29 Sep 2022 10:36 #253017 by macsddau@linuxcnc
I can't use pull down for e-stop.
It isn't in logic with normal security wiring.

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29 Sep 2022 11:35 #253023 by tommylight
No need, you can invert inputs by adding "_not" to input pins in hal.

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