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enum MODESWAP{WRITEMODE, WAITVELOMODE, INITIAL, WORKING, WAITINGFORENABLE, HOMING};
enum MODESWAP modeSwap;

enum HOMESTATE{HOMETRIGGER, HOMECONFIRM, HOMESEEKING};
enum HOMESTATE homeState;

(subroutine which just runs my spindle off script)
o<my_spindle_off> sub
(MSG, my_spindle_off)
M101
o<my_spindle_off> endsub


That, in turn, is run via MDI_COMMAND, just like my homing and touch-off routines:

[code][HALUI]
MDI_COMMAND = o<reset_g54> call
MDI_COMMAND = o<auto_x_minus> call
MDI_COMMAND = o<auto_x_plus> call
MDI_COMMAND = o<auto_y_minus> call
MDI_COMMAND = o<auto_y_plus> call
MDI_COMMAND = o<auto_z_minus> call
MDI_COMMAND = o<home_x> call
MDI_COMMAND = o<home_y> call
MDI_COMMAND = o<home_z> call
MDI_COMMAND = o<reset_g54_rot> call
MDI_COMMAND = o<my_spindle_off> call


In custom.hal:

[code]loadrt estop_latch 
addf estop-latch.0 servo-thread 
net estop-loopout \
    iocontrol.0.emc-enable-in <= estop-latch.0.ok-out
net estop-loopin \
    iocontrol.0.user-enable-out => estop-latch.0.ok-in 
net estop-reset \
    iocontrol.0.user-request-enable => estop-latch.0.reset 
net remote-estop \
    estop-latch.0.fault-in <= hm2_7i96.0.gpio.003.in_not


And in custom_postgui.hal:

[code]net external-estop-off \
    estop-latch.0.fault-out => halui.mdi-command-10


With halshow, I can see net external-estop-off and pin estop-latch.0.fault-out change state when I go in and out of e-stop state, but my command never runs.  Ideas?

paul