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Yes, normal jogging with the + - buttons works perfectly. 
the command brings up the following when I write the command into the terminal and press ENTER while turning the handwheel.
 
 

Does normal motion work?

When attempting jogging, what does:

halcmd show pin | grep jog

(typed in a terminal) report?

ok, it did challenge me a little.

i can now set up an udp connection via w5500 and control a few plugins.

the whole thing now even works with activated arm-core and its clock generation for the FPGA part.
(all in the dev branch)

TODO:

load bitfile into the flash (not only ram)
compile and run my own C code or boot linux on it
much later..... run a UDP bridge on the ARM core

Unsure how you could have had the complete opposite experience, mboston. There isn't much set-up possible on the G251x - it should just work out-of-the-box. There is a tiny trimpot on it that can be ever-so-slightly adjusted with a tiny screwdriver; double-check the manual and try giving that an adjustment at very slow speeds; it is supposed to adjust the smoothness.

No, sorry- doesn´t do it. No jogging the selected axis possilble.

Indeed Dedeer, Beckhoff has recently released a series of PCs specifically for real-time Linux: www.beckhoff.com/en-us/company/press/twi...linux-r-2024-04.html

Differential signaling is more resistant to EMI generating false step/dir signals
but where there is enough EMI to actually damage components, a single ended
connection is more resistant to damage since common mode EMI (applied to both
+ and - signals) is mostly eliminated.

Single ended connections would be:

7I96S GND      DRIVE PUL-, DIR-
7I96S STEP+   DRIVE PUL+
7I96S DIR+     DRIVE DIR+

 

Is there some other device you can ping to see if the issue is the host or the FPGA card?

Le acabo de poner una pica de tierra al lado de la pata de la mesa en la parte de atras para tener tierra totalmente separada.

Me puedes confirmar lo de single ended.

Gracias

Hard to tell if this is a EPP interface issue or maybe a Mesaflash problem

Can you try:

Power up on alternate EEPROM (which should have a valid boot sector)

program FPGA via JTAG (NOT FLASH!)

Then try mesaflash again to write a standard EPP bitfile

If this does not work, a temporary workaround (if you are building you own firmware)
would be to write the flash via JTAG

Thank you, I will try and report

Sigi

Yes. I tryed. Result was the same

Did you try writing one of the standard supplied EPP bit files?

The official LinuxCNC 2.9.4 image for arm64 is installed on a Raspberry Pi 400. There are strange partial graphical glitches in browsers, such as some pages or partial horizontal section of the page not displaying properly, while the rest is fine.

This was tested with Firefox ESR, but Chromium was also installed, and for example, the settings page for Chromium never displays properly. It would appear the underlying text and buttons/links are present but not visible, except by sometimes mousing over them. 

The problem appears to be only in browsers, not other applications. Youtube in either browser is also unusable, with graphical glitches on the player controls (YT buttons like play/pause/settings are either invisible or look corrupt).

Similarly, when opening PDF documents in browsers, the control buttons along the top of the document for Zoom/Download/Save etc are often invisible, but still present if moused over.

Also, Youtube video playback is extremely laggy, and that is including after removing the isolcpu=2,3 option. The goal on the Pi is just to familiarize with LinuxCNC and set up configs, not to run machines on it, so I'm not too concerned about the latency penalty in this case.. 

Has anyone else experienced this problem? 

I had an old Bridgeport mill that had had heavy production use. After getting some level of proficiency with it, I was having BIG problems getting things to fit together. So, I'd make some device, and then in a different setup, make a cover with screw holes that were supposed to line up. They didn't! It turned out that the Acme (trapezoidal thread) screws were more worn in the center that at the ends.
This was enough so that there was a large positioning error when moving from one end of the screw toward the middle.
Tommy, so this machine has ONE servo motor and clutches to the various leadscrews? I've heard of such machines, but never seen one. That does kind of match the amount of electronics in the thing.
Jon