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  • rodw
  • rodw's Avatar
19 Jan 2026 01:31
Replied by rodw on topic hm2/hm2_7i76e.0:

hm2/hm2_7i76e.0:

Category: General LinuxCNC Questions

I swapped computers for a i5 and now it all works fine, thanks!!

Perfect!
  • Estley
  • Estley
18 Jan 2026 23:13
Replied by Estley on topic hm2/hm2_7i76e.0:

hm2/hm2_7i76e.0:

Category: General LinuxCNC Questions

I swapped computers for a i5 and now it all works fine, thanks!!
  • Estley
  • Estley
18 Jan 2026 22:42
Replied by Estley on topic hm2/hm2_7i76e.0:

hm2/hm2_7i76e.0:

Category: General LinuxCNC Questions

It's not a laptop, it's an i3 mini PC, I'll swap it for a i5 I have laying around and see what happens.

I'm a huge fan of your videos, I was actually watching one of them when you replied!!
  • rodw
  • rodw's Avatar
18 Jan 2026 21:11
Replied by rodw on topic hm2/hm2_7i76e.0:

hm2/hm2_7i76e.0:

Category: General LinuxCNC Questions

This PC may not be suitable. Is it a laptop? If so, replace it with a desktop.
There is no simple fix as it is a culmination of things required to tune the RT Kernel.
But before you give up, follow the steps in this playlist
youtube.com/playlist?list=PLG0NtQtZPZyo1...&si=XD8x3y7Zi9gPbya4
  • Califax
  • Califax
18 Jan 2026 20:15
Netzwerk Controller Intel 82579LM Gigabit Network scheint aussetzer zu haben was created by Califax

Netzwerk Controller Intel 82579LM Gigabit Network scheint aussetzer zu haben

Category: Deutsch

Hallo

Seit langen wieder eine Frage.
Meine aktuelle Eckdaten.
-Lenovo W520 
-Linuxcnc 2.9.8  auf Debian Trixi
-Mesa 7i76e

Ich habe folgendes Problem.

Meine Servo thraed schiesst  sporadisch in die Höhe und es führt zum Abbruch von Linuxcnc.

Meiner Meinung scheint der Netzwerk Controller Intel 82579LM sporadisch zu aussetzer von rund 1Sekunde.

Jetzt ein paar Fragen.

1.Welcher Treiber wird von Debian Trixi  für Netzwerk Controller Intel 82579LM benutzt?
   - e1000e ???
2. Wie soll ich folgende Abfrage "ethtool -c enp0s25" interpretieren  ?

Ausgabe:
Coalesce parameters for enp0s25:
Adaptive RX: n/a  TX: n/a
stats-block-usecs:    n/a
sample-interval:    n/a
pkt-rate-low:        n/a
pkt-rate-high:        n/a

rx-usecs:    0
rx-frames:    n/a
rx-usecs-irq:    n/a
rx-frames-irq:    n/a

tx-usecs:    n/a
tx-frames:    n/a
tx-usecs-irq:    n/a
tx-frames-irq:    n/a

rx-usecs-low:    n/a
rx-frame-low:    n/a
tx-usecs-low:    n/a
tx-frame-low:    n/a

rx-usecs-high:    n/a
rx-frame-high:    n/a
tx-usecs-high:    n/a
tx-frame-high:    n/a

CQE mode RX: n/a  TX: n/a

tx-aggr-max-bytes:    n/a
tx-aggr-max-frames:    n/a
tx-aggr-time-usecs:    n/a

3.Warum werden nicht alle Einstellungen angezeigt?
4.Kann man den Netzwerk Controller Intel 82579LM so einstellen, das ich die Aussetzer weg bekomme?

Ich hoffe mir kann einer von Euch was zu diesem Thema sage.

Gruß Califax


 
  • Estley
  • Estley
18 Jan 2026 17:09
hm2/hm2_7i76e.0: was created by Estley

hm2/hm2_7i76e.0:

Category: General LinuxCNC Questions

I'm starting a PrintNC build, as far as the control side, my setup is as follows:
  • Dell Optiplex 3040 (disabled all power management, VM and internal wifi fron BIOS)
  • MESA 7i76EU
  • DM556Y from stepperonlineI created a new configuration in linuxCNC, and connected one of my drivers and steppers to it to make sure i was doing things correctly, I can jog the stepper from the UI, but after a few seconds I get this:hm2/hm2_7i76e.0: error finishing read!I'm new to all this so i have no idea where to even look, thanks!!
  • advangrootel
  • advangrootel
18 Jan 2026 13:18
Replied by advangrootel on topic need firmware for mesa 7i76eu+7i85+pwm

need firmware for mesa 7i76eu+7i85+pwm

Category: Driver Boards

so far all works well, you did a great job thanks. for now this will do.

regards Adrian
  • PCW
  • PCW's Avatar
18 Jan 2026 02:28
Replied by PCW on topic need firmware for mesa 7i76eu+7i85+pwm

need firmware for mesa 7i76eu+7i85+pwm

Category: Driver Boards

The current firmware puts the PWMgen on P1 pin 1

If you want the PWM  on a 7I85 RS-422 output, that would
require different firmware.
  • advangrootel
  • advangrootel
18 Jan 2026 01:14
Replied by advangrootel on topic need firmware for mesa 7i76eu+7i85+pwm

need firmware for mesa 7i76eu+7i85+pwm

Category: Driver Boards

thanks a lot. tomorrow i try if it works. it is getting to late. the 7i85 board is not connected yet. i first want to make all working. then i will connect the encoders on the motors and connect the 7i85 board. what pins do i use without the 7i85 board to use the pwm?
  • PCW
  • PCW's Avatar
17 Jan 2026 22:18
Replied by PCW on topic need firmware for mesa 7i76eu+7i85+pwm

need firmware for mesa 7i76eu+7i85+pwm

Category: Driver Boards

7I76EU firmware for 7I85 on P1, and 1 PWM on P3

 

File Attachment:

File Name: 7i76eu_7i7...1pwm.zip
File Size:298 KB



After doing this I also had a thought that you could use a spare RS-422
output on the 7I85 for the PWM output, so you get a  buffered output
rather than a bare FPGA pin.
  • advangrootel
  • advangrootel
17 Jan 2026 22:05
Replied by advangrootel on topic need firmware for mesa 7i76eu+7i85+pwm

need firmware for mesa 7i76eu+7i85+pwm

Category: Driver Boards

Reply to PCW with:
"Yes, that's correct:

7i85 encoder card on P1 (first DB25 expansion connector)
PWM on P3 (second DB25 expansion connector) for laser

Or if it's easier, PWM on P1 and 7i85 on P3 - whichever works best for the firmware. i use all 5 stepper outputs. so any port or pin you think is best will do.
  • PCW
  • PCW's Avatar
17 Jan 2026 21:27
Replied by PCW on topic need firmware for mesa 7i76eu+7i85+pwm

need firmware for mesa 7i76eu+7i85+pwm

Category: Driver Boards

Do you mean 7I85 on P1 and PWM on P3  (on 7I76EU P1 is the first parallel expansion connector and P3 is the second)
  • advangrootel
  • advangrootel
17 Jan 2026 20:12
need firmware for mesa 7i76eu+7i85+pwm was created by advangrootel

need firmware for mesa 7i76eu+7i85+pwm

Category: Driver Boards

Hi PCW,

I need custom firmware for 7i76EU with:
- 7i76 daughter card on internal SSerial (currently working)
- 7i85 encoder card on P2 (currently working)  
- PWM generator on P1 for 20kHz laser control



Can you create firmware combining all three?

Board IP: 192.168.1.121
5 axes: XYZAB vfd rs485 controls spindle direct on the mini pc with rs485 output

Thanks!
  • Jocman
  • Jocman
15 Jan 2026 17:50
Replied by Jocman on topic MAC address not retrieved (after 2 years stop)

MAC address not retrieved (after 2 years stop)

Category: Driver Boards

did you turn on power to the Mesa card before starting linuxcnc?

yep, first thing I tried (a lot of times I got an error then I realized I forgot to switch on the machine)


Whats does the command:
ip a
report?
What happens if you:
ping 10.10.10.10

This is what I get with "ip a" and giving a ping:
joccnc@JocCnc:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether e8:4e:06:84:dc:c9 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.245/24 brd 192.168.1.255 scope global dynamic eth0
       valid_lft 863950sec preferred_lft 863950sec
    inet6 fd59:b8bd:be6f:0:6bdd:2ca7:6e73:aa7b/64 scope global noprefixroute dynamic
       valid_lft 7152sec preferred_lft 3552sec
    inet6 fe80::6ed6:c856:a0cb:2db8/64 scope link
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 70:85:c2:6a:f0:3d brd ff:ff:ff:ff:ff:ff
    inet 10.10.10.11/8 brd 10.255.255.255 scope global eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::8ede:25a1:ff4d:99b4/64 scope link
       valid_lft forever preferred_lft forever
joccnc@JocCnc:~$ ping 10.10.10.10
PING 10.10.10.10 (10.10.10.10): 56 data bytes
64 bytes from 10.10.10.10: icmp_seq=0 ttl=64 time=0.779 ms
64 bytes from 10.10.10.10: icmp_seq=1 ttl=64 time=0.418 ms
64 bytes from 10.10.10.10: icmp_seq=2 ttl=64 time=0.402 ms
64 bytes from 10.10.10.10: icmp_seq=3 ttl=64 time=0.424 ms
64 bytes from 10.10.10.10: icmp_seq=4 ttl=64 time=0.365 ms


eth0 is my second network card, I use it to reach my NAS, my LAN and the WEB
eth1 is the integrated network card, used by Mesa

giving the ping 10.10.10.10 I get response from Mesa
I just don't understand why eth1 report IP 10.10.10.11, when my hal file is set 10.10.10.10, and ping to 10.10.10.10 works.

BTW, after these tests I tried to start LinuxCNC, I get again an error message, but this time no mention about the MAC (is correctly reported), now the error is about HM2 registration:
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/share/linuxcnc/tcl/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.7.14
Machine configuration directory is '/home/joccnc/linuxcnc/configs/Prova01'
Machine configuration file is 'Prova01.ini'
INIFILE=/home/joccnc/linuxcnc/configs/Prova01/Prova01.ini
PARAMETER_FILE=linuxcnc.var
TASK=milltask
HALUI=halui
DISPLAY=axis
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): ./Prova01.hal
hm2: loading Mesa HostMot2 driver version 0.15
hm2_eth: loading Mesa AnyIO HostMot2 ethernet driver version 0.2
hm2_eth: 10.10.10.10: Hardware address: 00:60:1b:10:45:59
hm2_eth: discovered 7I76E-16
hm2/hm2_7i76e.0: Smart Serial Firmware Version 43
Board hm2_7i76e.0.7i76.0.0 Hardware Mode 0 = standard
Board hm2_7i76e.0.7i76.0.0 Software Mode 0 = io_spin
Board hm2_7i76e.0.7i76.0.0 Software Mode 1 = io_ana_spin
Board hm2_7i76e.0.7i76.0.0 Software Mode 2 = io_enc_ana_spin_fv
board fails HM2 registration
Shutting down and cleaning up LinuxCNC...
Running HAL shutdown script
Killing task linuxcncsvr, PID=1208
hm2: unloading
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments
  • PCW
  • PCW's Avatar
14 Jan 2026 18:50
Replied by PCW on topic Custom large scale 4 axis wire cutter and a retrofit of an existing CNC

Custom large scale 4 axis wire cutter and a retrofit of an existing CNC

Category: CNC Machines

1. Suggested pullup is 2.2K 1/2w for 24V. The only disadvantage of the pullup is the wiring nuisance.
10K will not work.

2. Enable on simple step/dir drives is not of much value safety wise as it's very unlikely to have a runaways
without the control generating step/dir pulses (and step generation will stop on a LinuxCNC or communication fault)

3. Its important that the default state of 7I76EU outputs be the safe state as all outputs will return to the power up state on
communication loss. This initial state is all outputs open circuited (this is true even if the outputs were set to push-pull mode)
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