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  • PCW
  • PCW's Avatar
02 Jul 2025 23:20 - 02 Jul 2025 23:22

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

--- 10.10.10.10 ping statistics ---
60000 packets transmitted, 60000 received, 0% packet loss, time 60420ms
rtt min/avg/max/mdev = 0.057/0.276/16.993/0.227 ms, pipe 2

OK that (almost 17 ms) is the issue.

Depending on the Ethernet hardware on the host, solutions are:

If it's a Realtek MAC, install the DKMS driver

Disable PCIE/Ethernet power management

Make sure all power management is disabled in the BIOS
It that's not good enough, pin the Ethernet IRQ to the last processor
and use isolcpus in the kernel command line.

Here's a long  thread on solutions to this issue:

forum.linuxcnc.org/18-computer/56380-error-finishing-read-sigh
 
  • ANGELOS13
  • ANGELOS13
02 Jul 2025 22:56
Replied by ANGELOS13 on topic 7i92M very weird communication problem!!!

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

--- 10.10.10.10 ping statistics ---
60000 packets transmitted, 60000 received, 0% packet loss, time 60420ms
rtt min/avg/max/mdev = 0.057/0.276/16.993/0.227 ms, pipe 2
  • PCW
  • PCW's Avatar
02 Jul 2025 22:09 - 02 Jul 2025 22:10

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

OK, so there is a real time issue that needs to be addressed
before LinuxCNC will run on that system.

To get a rough idea of network latency:

sudo chrt 99 ping -i .001 -q -c 60000 10.10.10.10

This will run for a minute and then print statistics.
  • Benb
  • Benb's Avatar
02 Jul 2025 21:41
  • ANGELOS13
  • ANGELOS13
02 Jul 2025 21:36
Replied by ANGELOS13 on topic 7i92M very weird communication problem!!!

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

Linuxcnc is running, the light on the rj45 stays solid green and the lights on the board stay solid without any activity.   
  • PCW
  • PCW's Avatar
02 Jul 2025 21:31
Replied by PCW on topic Configuración thcad2 con mesa 7i96s

Configuración thcad2 con mesa 7i96s

Category: General LinuxCNC Questions

The THCAD support was added to pncconf about 3 years ago so definitely in 2.9.4

The THCAD screen should appear on the next screen after the one where
you set the stepgen/encoder functions.
  • Johnnysacalu
  • Johnnysacalu
02 Jul 2025 21:06
Replied by Johnnysacalu on topic Configuración thcad2 con mesa 7i96s

Configuración thcad2 con mesa 7i96s

Category: General LinuxCNC Questions




he vuelto a instalar linuxcnc ultima version estable y nada sigue sin darme la option del thc
porque¿
  • PCW
  • PCW's Avatar
02 Jul 2025 21:05 - 02 Jul 2025 22:16

homing with Phase Z encoder on MESA 7i96s

Category: Advanced Configuration

The search velocity is the speed when searching for the first
home switch actuation, the latch velocity is the velocity used
for for the actual homing switch/index move so only the latching
velocity is needed in this case.

Basically, Index-only homing is specified by setting the search
velocity to 0. (as the homing documentation specifies)
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