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Direct Memory Access, as far as I understand is that with DMA the frequency is 500kHz and it seems that it's limited in the firmware to 40kHz otherwise. Somewhere in this topic Scott explained how it works.

If you do not get a yellow 100BT link light on the RJ45 when
connected it sounds like the Ethernet chip has been damaged
somehow or there is a issue with the host Ethernet port. If you
have the same issue with another host, the card should be returned
for repair/replacement.
 

Hello
I discovered Flex GUI a few days ago (thanks a lot for this great work). I did some tests and I noticed that Flex GUI was updating the text on the buttons.Unfortunately, I'm French. I understand English, but for corporate/school use, it would be better if the interface was translated.Is it possible to manage multiple languages? Or customize the text displayed on the buttons?

Understood, I'm using the basic config.
What does DMA stands for ?

Hello, 

I have been looking around planning my CNC conversion and it seems Beckhoff is the main choice for Ethercat.

I am planning to use the following

EK1100 Coupler
EL1018 Input
EL2008 Output
EL3048 / 68 - 0-10v Analog input
or 
EL3058 - 0.4-20Mha Analog input

Now from what I understand I can use the EL3048 / 68 or EL3058 to read some potentiometers which I plan to use to override Spindle Speed and Feed Speed.

Now will I have any issues with using these? I have not come across someone else using them on Linux CNC. Is there a compatibility list or certain drivers required for these Beckhoff components?

Any tips or feedback is Appreciated
 

This release included a user configurable help dialogs that can be launched from a button. There can be as many topics as wanted.
gnipsel.com/linuxcnc/flexgui/misc.html#help-system



JT

Now I see that setting that frequency was unnecessary indeed. Are you using the DMA config?
github.com/scottalford75/Remora-RT1052-c...ec500-rt1052-DMA.txt

github.com/scottalford75/Remora-RT1052-c...DMA/remora-ec500.hal

This is what I get now cause now I was trying on 4.4.179 kernel, however his one failed too:
Linux orangepi4-lts 4.4.179-rk3399 #12 SMP Mon Aug 1 15:20:24 CST 2022 aarch64 GNU/Linux

What does
uname -a
In a terminal return?

I remember seeing Scott's post about the max velocity, I forgot to bump it up, now it's set to 2x the max gui velocity, thanks.

Increasing the base frequency did not result in any mesurable improvement, still fails at about 38KHz.
I've tried 60KHz 80KHz and 100KHz, updating each time with the command sudo halcompile –install remora-eth-3.0.c

Do you get latency warnings when running LinuxCNC?
If not, do not change anything.
If yes, download the Wheezy ISO and boot from USB, start your config by right clicking on the .ini file, open with, type linuxcnc and press enter.

Hello,
I have the same issue with my 7i96S card. It works for 2 years without problem, and once it has a communication error.
On the startup, linuxcnc shows the message you can see in the attached photo.
The fpga boots properly (led flashes, and turns off). The 5VDC power supply is ok, the ethernet cable is tested.
System is Debian 10 with LinuxCNC 2.8.4. In linux on the taskbar, the network connection shows the network is connected.
The IP jumpers are set to EEPROM (10.10.10.10).Attached photo shows the ping 10.10.10.10. results. 
The IPv4 settings are attached.I see you mentioned testing a card with ip: 192.168.1.121.

Can you help me to configure the ethernet connection for this IP?

Result of the "ip a" command is attached.On the Rj45 connector just the green led lights/blinks, the yellow never (nieter during ping).

What can be with a card, can you help me to solve it?

Hi
Before installing linuxcnc I need to have a real-time kernel for my orange-pi 4 lts.
I could'nt fine any ready .deb file to install on my board so I've tried to compile one for myself.
But so far I failed over and over again.
I dont know what should I do. Can anyone please help me how can I get through this?
The procedure that I went through:

I've downloaded a 5.10.41 kernel from:
mirrors.edge.kernel.org/pub/linux/kernel/v5.x/

Then I've downloaded the rt patch (5.10.41-rt42) from:
cdn.kernel.org/pub/linux/kernel/projects/rt/5.10/older/

Then I patched it to the kernel, and then used a cross-compiler to compile it:
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- xconfig
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j8 deb-pkg

Then I copied the result created .deb files into my board and then install. but nothing happens and it doesn't switch to new kernel after reboot.
I even manually configure the u-boot settings in order to find and recognize my new kernel files but after doing this the board doesn't boot up at all and just stuck in boot.
what can I do??

I have used the Soyo SY-H110Z full firmware version V3.0 with a modified BIOS and an i3 8100 with low latency.
I am currently using the Supermicro x11ssm-f which has a slightly higher latency than the above motherboard but has two network ports.
Generally, full-size atx motherboards can achieve good latency

sincere apologies. since i do not initially know or understand how stepgen actually works (even after reading the stepgen and hal manual) I have just copied the code from another solution. however, the spindle still doesnt work. infact the AXIS gui doesnt start. i get the following error. "./test_grofi.hal:72: Pin 'stepgen.2.step' does not exist
3015"

please help me and guide me through the basics. :´)

EDIT: added this to the start of the HAL file loadrt stepgen step_type=0,0,0 ctrl_type=p,p,v
and removed a typo on line 79: setp stepgen.2.dirsetup       [SPINDLE_0]DIRSETUP

and now the servomotor moves as a spindle. next i will have to set the speed and rpm as i need. Many thanks for pushing me into looking at the right direction!! Cheers