Combined home and limit does not work on Y axis

Strange issue commissioning my home and limits.

Y axis has 1 limit switch so its combined as both limits and home - net both-home-y <= hm2_5i25.0.7i76.0.0.input-04-not
but the switch is ignored in homing??

I monitored switch in Hal and confirmed the signal both-home-y changes state when switch is made but the axis simply continues in search direction at search velocity.

As a test I then changed hal to use Max-home-y net max-home-y <= hm2_5i25.0.7i76.0.0.input-04-not and Y axis homed fine ???.

It appears the machine is not happy with a single switch combined as both limits and home -
My research indicates that during homing the limits are disabled, so given that Hal confirms a state change during homing what am I missing?

X axis has 2 limit switches and a home switch - works fine
Z axis has 2 limit switches with Z+ combined home - works fine

Switches are wired to fail safe so the inputs are inverted in Hal

Appreciate any input.....

A couple of tricks I found setting up a shared home/limit switch

My INi settings for that axis. You can try commenting out the HOME_IGNORE_LIMITS = 1

Also you need to set a home offset so the axis is moved off the limit switch before setting its final home position otherwise you will get a limit switch error straight after homing (0.5mm works for my machine)

Is it that the signal "both-home-y"
is not connected to the proper motion pins? (that is both of motions home and appropriate limit switch input pins)
Can you post your hal file?

Guys thanks so much for your input.

I checked the ini file and added HOME_IS_SHARED = yes

Then looked in Hal file and found the Y axis was configured for min and max+home being attached to the motion pins. Rather than both-home-y being attached

So I changed this to:

# ---setup home / limit switch signals---

net both-home-y => axis.1.home-sw-in
net both-home-y => axis.1.neg-lim-sw-in
net both-home-y => axis.1.pos-lim-sw-in

All working is well now,.,,PCW your suggestion was right on the money...

I guess this was all result of editing the hal files rather than using Pncconf to modify my machine set up. On the plus side I am learning lots more about hal and the MESA setup so it's all good.

This machine is close to cutting metal now....just a bit of shiming on the Z axis bearings first.

Cheers

Andy