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  • AlessandroEmm
  • AlessandroEmm
17 Feb 2026 19:20 - 17 Feb 2026 19:48
Replied by AlessandroEmm on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

Not really sure whats going on now as I run into segfaults. I havent changed a thing on linuxcnc side, i just changed the config.txt on the SD Card

line 977: 2610 Segmentation fault $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS

Before that I haven't seen anything in the terminal or anywhere, thats why I'm a bit puzzled. Yes I compiled it from main branch, using OS6 Version for the Firmware and likewise for the hal component.

Is there a way to just test it with the halcmd? I tried loading the remora component, but struggle beyond. Show pins shows no active session.

Both the debug file and the regular logfile are basically empty with no specifics concerning the error.

Thanks!
  • 2tinker
  • 2tinker
17 Feb 2026 19:18
Replied by 2tinker on topic AMB FME-U 1400 DI

AMB FME-U 1400 DI

Category: Deutsch

Ehrlich ist gut. Danke für deine Einschätzung.
Was spricht gegen Kohlebürsten?
Die Lautstärke sollte man sicherlich beachten.
Die Frage für mich wäre, wie Laut es wird, wenn der Fräser durchs Material fährt.
Wasserkühlung ist mir zu aufwändig.

Danke für den Hinweis bezüglich des Dauerbetriebes.
Da werde ich bei AMB noch mal nachfragen.
  • tuxcnc
  • tuxcnc
17 Feb 2026 18:56
Replied by tuxcnc on topic EtherCAT driver as simply positioner

EtherCAT driver as simply positioner

Category: EtherCAT

I done some investigations, and it seems my driver is simplified as possible and supports only homing and CSP modes.
There are no registers for velocity and acceleration, the driver uses internal default values.
In LinuxCNC xml configuration you can create hal pins for non existent registers and you can write to them, but it not affect the driver.
My bash script is far of dreams, but works.
  • PCW
  • PCW's Avatar
17 Feb 2026 18:55
Replied by PCW on topic HURCO KMB-1 Control Update

HURCO KMB-1 Control Update

Category: Milling Machines

If this is closed loop, I would check for issues with the encoder setup
or PID setup

Is the encoder velocity used for feedback?
  • PCW
  • PCW's Avatar
17 Feb 2026 18:50
Replied by PCW on topic Configure Mesa 7i96s and pktuart with Omron MX2 (wj200)

Configure Mesa 7i96s and pktuart with Omron MX2 (wj200)

Category: Advanced Configuration

Sounds like you need to set the frequency scale to .390625
  • amanker
  • amanker
17 Feb 2026 18:49
Replied by amanker on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

You should post complete serial console output. It will make diagnosis easier.
You should start LinuxCNC from terminal. And terminal window what msg you get when you press estop button in lcnc gui. Is it spi_payload = 0 or something else?
Did you compiled and installed remora-spi lcnc component from same repository?
  • Finngineering
  • Finngineering
17 Feb 2026 18:45
Replied by Finngineering on topic XHC WHB04B development?

XHC WHB04B development?

Category: General LinuxCNC Questions

If the interrupt endpoint is not continuously polled, you get the disconnects. But also the xhc-whb04b-6 component keeps it from disconnecting, at least in most situations. You can run that directly from the terminal, for instance with "xhc-whb04b-6 -a" to enable all logging, and you will see that the pendant will not disconnect.

So in this "easy" situation, there is not much difference between the three programs. We know that the pendant disconnects in a long-time stress test with the xhc-whb04b-6 component and LinuxCNC running. I'm not sure either of the other programs would do any better in similar situations.
  • DerKlotz
  • DerKlotz
17 Feb 2026 18:35
Replied by DerKlotz on topic Add Buttons in Probe Basic

Add Buttons in Probe Basic

Category: QtPyVCP

Great, i´ll check tomorrow.
  • AlessandroEmm
  • AlessandroEmm
17 Feb 2026 18:30
Replied by AlessandroEmm on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

Hey there

After having successfully used a NVEM flashed Remora via Ethernet for a while, I want to use an old 3d printer board (SKR E3 Mini v2.0) via SPI for my Plasma. It took me a while but eventually i got it to respond correctly via UART, and am currently sitting at

Starting the SERVO thread
Registering interrupt for interrupt number = 28
        power on Timer 2

## Entering IDLE state

Problem is that I struggle to make any communication via SPI. I think I triple checked every wire. As the SKR Mini Configuration in the repo seems to be for a version 1.2 of the board i modified the pins both in the firmware and config.txt, taking care of not using anything that may conflict with other function. But so far no nothing. 

Is there any way to approach debug/test anything further to narrow down why the comms doesn't seem to work?

Thanks a lot,
Alessandro
  • Hakan
  • Hakan
17 Feb 2026 18:26
Replied by Hakan on topic XHC WHB04B development?

XHC WHB04B development?

Category: General LinuxCNC Questions

I mean, what do your program and usbhid-dump do that stop the disconnect/reconnects?
And why doesn't the whb04b component do the same?
Rhetorical question.

I looked briefly at the codes, but this is a big hurdle..
  • Stephan@work
  • Stephan@work
17 Feb 2026 18:16
Replied by Stephan@work on topic Configure Mesa 7i96s and pktuart with Omron MX2 (wj200)

Configure Mesa 7i96s and pktuart with Omron MX2 (wj200)

Category: Advanced Configuration

I'm back !
With some good new !
I figured out my Problem. (read the fvck!ng manual :D )
For some reasons, you have to decrement the Register address by one for "run" and "reverse".

Now I'm struggling with the command-frequency.
I can run the Vdf using the Mesa pktuart. But I there is still a scaling of 2.56
If i send 10Hz to the Vdf, the displayed frequency on my OmronMx2 show me 25.6Hz
same as 100Hz. Vdf - 256 Hz

I checked all combinations of U_AB, U_BA, S_AB, S_BA, F_AB, F_BA.
Did i miss something or choose the wrong LSB/MSB ?

Same as Motor Current.
Heatsink-temperature works pretty well.
<mesamodbus baudrate="9600" parity="N" interval="10000" stopbits="1" duplex="half"> 
  <devices>
    <device name="omronmx2" address="0x01"/>
  </devices>
  <initlist>
    <command device="omronmx2" address="0x0000" function="W_COIL">
      <description>Zero Operation</description>
      <data value="0"/>
    </command>
    <command device="omronmx2" address="0x0001" function="W_COIL">
      <description>Reverse Operation</description>
      <data value="0"/>
    </command>
  </initlist>
  
  <commands>
      <command device="omronmx2" address="0x0000" function="W_COIL"       name="run"/>
      <command device="omronmx2" address="0x0001" function="W_COIL"       name="reverse"/>
      <command device="omronmx2" address="0x0001" function="W_REGISTER"   name="cmd-freq"       haltype="HAL_FLOAT" modbustype="U_BA"/>
      <command device="omronmx2" address="0x0018" function="R_COILS"      name="is-at-speed"    count="1"/>
      <command device="omronmx2" address="0x0017" function="R_COILS"      name="watchdog-out"   count="1"/>
      <command device="omronmx2" address="0x0012" function="R_COILS"      name="is-running"     count="1"/>
      <command device="omronmx2" address="0x1002" function="R_REGISTERS"  name="motor-current"  haltype="HAL_FLOAT" modbustype="S_AB" count="1"/>
      <command device="omronmx2" address="0x1018" function="R_REGISTERS"  name="heatsink-temp"  haltype="HAL_FLOAT" modbustype="F_BA" count="2"/>
  </commands>
</mesamodbus>
  • andrax
  • andrax's Avatar
17 Feb 2026 17:55
Replied by andrax on topic AMB FME-U 1400 DI

AMB FME-U 1400 DI

Category: Deutsch

Na ja,
ich will Ehrlich sein.
Diese ist Luftgekühlt mit sicherheit sehr laut und hat wahrscheinlich Kohlebürsten.
Ich gehe nicht davon aus, das sie auch als Dauerläufer geeignet ist
Für den Preis bekommst du auch eine Chinaspindel mit FU Wassergekühlt.
 
  • Finngineering
  • Finngineering
17 Feb 2026 16:13
Replied by Finngineering on topic XHC WHB04B development?

XHC WHB04B development?

Category: General LinuxCNC Questions

Regarding the firmware for the pendant, I thought about trying to read it out with glitching or some other technique. But I have not seen the need for it so far. I did read out the firmware from the dongle, but also that was quite much work for what in theory should be simple:
github.com/finngineering/ch55x_firmware_extractor
The reverse engineering I have done for that is with Ghidra. But the dongle is based on the CH554 microprocessor, which is a "8051" type. And the support for that processor is not the best in Ghidra.

I'm not sure what differences you are asking about for the usbhid-dump Hakan. I haven't really checked the source, but I guess it's just polling the interrupt endpoint more or less the same as my test program and the xhc-whb04b-6 component. What would be interesting to know is if there are disconnects with all these program if left running long enough. Say, 1 day or so. Or if that happens only with the xhc-whb04b-6 component (and maybe only while LinuxCNC is running)... I could maybe leave it running overnight myself to check.
  • Looby
  • Looby
17 Feb 2026 15:01
Replied by Looby on topic Lenovo T14 Gen2 AMD - CRAZY High Latency - Am I screwed?

Lenovo T14 Gen2 AMD - CRAZY High Latency - Am I screwed?

Category: Computers and Hardware

ooook. 

* Repasted CPU cooler.
* Took SSD out and wiped separately
* Reinstalled linuxcnc debian trixie package and did a couple tweaks from the links you posted.  All didnt work for me

Now im down to 21.2 microseconds in histogram with nobase.  10 glxgears and 4 x 4k youtube videos running.

 
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