On 10/9/25 13:58, John Dammeyer wrote:
Hi all,
I took this setup off the shelf yesterday to demonstrate to a friend how
simple a small LinuxCNC system can be:
Pi4+MESA 7i92H, two breakout boards, power supplies, Logitech keyboard and
mouse and touch screen.
Plugged in the cables, powered it up and this time if failed where before it
always worked. As in it was running when I shut it down, disconnected the
cables and put it on the shelf.
Here is the line that causes the problem:
setp hm2_7i92.0.gpio.000.is_output true
net machine-is-enabled => hm2_7i92.0.gpio.000.out
My first guess since its happened to me 2 or 3 times, John, is a failure
of one of the IDC connections since I see several of in the pix. I
originally made all those using the blue AMP brand connectors and I've
slowly over the decade or so since I first wired up the go704 a decade +
ago, have replaced them all with some made with grey plastic, which
seems to make a better cable. I don't recall the actual brand I'm using
now. I did make sure they were gold flashed, the originals were not.
I'm not saying that's what it is, but its the first thing I'd check. If
the retainer caps are loose enough to see a gap, hit them with a vise to
restore a tight crimp. You might save time by constructing a set of
mating connectors that makes the whole cable a series connected jumper,
so you can test every wire in the cable in one test. And put the test
jig where you can find it next time. With IDC connectors in the mix
there /will be/ a next time.
BTW, I have that exact same line in my PC based system running a real
machine. Something else must be doing this but what?
Here's the log with error message:
Error report created by /usr/lib/tcltk/linuxcnc/show_errors.tcl:
Print file information:
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.8.4
Machine configuration directory is '/home/pi/linuxcnc/configs/G3616-Pi4'
Machine configuration file is 'G3616-Pi4.ini'
INIFILE=/home/pi/linuxcnc/configs/G3616-Pi4/G3616-Pi4.ini
VERSION=1.1
PARAMETER_FILE=linuxcnc.var
TASK=milltask
HALUI=halui
DISPLAY=axis
COORDINATES=XYZA
KINEMATICS=trivkins coordinates=XYZA
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
Found file(REL): ./G3616-Pi4.hal
Shutting down and cleaning up LinuxCNC...
Running HAL shutdown script
hm2: loading Mesa HostMot2 driver version 0.15
hm2_eth: loading Mesa AnyIO HostMot2 ethernet driver version 0.2
hm2_eth: 192.168.1.121: INFO: Hardware address (MAC): 00:60:1b:12:07:93
hm2_eth: discovered 7I92
hm2/hm2_7i92.0: Low Level init 0.15
hm2/hm2_7i92.0: 34 I/O Pins used:
hm2/hm2_7i92.0: IO Pin 000 (P2-01): StepGen #4, pin Step (Output)
hm2/hm2_7i92.0: IO Pin 001 (P2-14): IOPort
hm2/hm2_7i92.0: IO Pin 002 (P2-02): StepGen #0, pin Direction (Output)
hm2/hm2_7i92.0: IO Pin 003 (P2-15): IOPort
hm2/hm2_7i92.0: IO Pin 004 (P2-03): StepGen #0, pin Step (Output)
hm2/hm2_7i92.0: IO Pin 005 (P2-16): IOPort
hm2/hm2_7i92.0: IO Pin 006 (P2-04): StepGen #1, pin Direction (Output)
hm2/hm2_7i92.0: IO Pin 007 (P2-17): PWMGen #0, pin Out0 (PWM or Up)
(Output)
hm2/hm2_7i92.0: IO Pin 008 (P2-05): StepGen #1, pin Step (Output)
hm2/hm2_7i92.0: IO Pin 009 (P2-06): StepGen #2, pin Direction (Output)
hm2/hm2_7i92.0: IO Pin 010 (P2-07): StepGen #2, pin Step (Output)
hm2/hm2_7i92.0: IO Pin 011 (P2-08): StepGen #3, pin Direction (Output)
hm2/hm2_7i92.0: IO Pin 012 (P2-09): StepGen #3, pin Step (Output)
hm2/hm2_7i92.0: IO Pin 013 (P2-10): IOPort
hm2/hm2_7i92.0: IO Pin 014 (P2-11): IOPort
hm2/hm2_7i92.0: IO Pin 015 (P2-12): IOPort
hm2/hm2_7i92.0: IO Pin 016 (P2-13): IOPort
hm2/hm2_7i92.0: IO Pin 017 (P1-01): IOPort
hm2/hm2_7i92.0: IO Pin 018 (P1-14): IOPort
hm2/hm2_7i92.0: IO Pin 019 (P1-02): StepGen #5, pin Direction (Output)
hm2/hm2_7i92.0: IO Pin 020 (P1-15): IOPort
hm2/hm2_7i92.0: IO Pin 021 (P1-03): StepGen #5, pin Step (Output)
hm2/hm2_7i92.0: IO Pin 022 (P1-16): IOPort
hm2/hm2_7i92.0: IO Pin 023 (P1-04): IOPort
hm2/hm2_7i92.0: IO Pin 024 (P1-17): IOPort
hm2/hm2_7i92.0: IO Pin 025 (P1-05): IOPort
hm2/hm2_7i92.0: IO Pin 026 (P1-06): IOPort
hm2/hm2_7i92.0: IO Pin 027 (P1-07): IOPort
hm2/hm2_7i92.0: IO Pin 028 (P1-08): IOPort
hm2/hm2_7i92.0: IO Pin 029 (P1-09): IOPort
hm2/hm2_7i92.0: IO Pin 030 (P1-10): IOPort
hm2/hm2_7i92.0: IO Pin 031 (P1-11): IOPort
hm2/hm2_7i92.0: IO Pin 032 (P1-12): IOPort
hm2/hm2_7i92.0: IO Pin 033 (P1-13): IOPort
hm2/hm2_7i92.0: registered
hm2_eth: in hm2_eth_reset
hm2_eth: HostMot2 ethernet driver unloaded
hm2: unloading
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments
Debug file information:
Note: Using POSIX realtime
./G3616-Pi4.hal:98: parameter or pin 'hm2_7i92.0.gpio.000.is_output' not
found
19765
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime
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Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Don't poison our oceans, interdict drugs at the src.
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