RPI4 Raspbian 64 bit & LinuxCNC

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04 Dec 2020 17:43 #191047 by JackRay
The real time is inside ?

thank you

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04 Dec 2020 18:14 #191052 by snowgoer540
Yes it’s the preemept-rt kernel. 32 bit though not sure you gain much from 64 bit here.

It’s pretty plug and play I’m running my plasma table on it currently.

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04 Dec 2020 19:29 #191059 by JackRay
I install the image, my raspberry starts, but it remains blocked. I have neither access to the mouse nor to the keyboard, nor to the tacrile screen.

Did you have this problem ?

Thank you

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04 Dec 2020 22:46 #191082 by snowgoer540
Nope everything boots and works great right out of the box.

forum.linuxcnc.org/plasmac/40737-plasmac-on-pi4

There’s a video of my table running on a pi

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04 Dec 2020 22:58 #191083 by PCW
Replied by PCW on topic RPI4 Raspbian 64 bit & LinuxCNC
Do you have 8G of RAM? There's a known USB issue with
that version. I think it needs a newer kernel than on the LinuxCNC
image.

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05 Dec 2020 06:46 #191108 by JackRay
Hello ,
No I have 2Go of RAM

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05 Dec 2020 08:17 #191109 by Mud
Replied by Mud on topic RPI4 Raspbian 64 bit & LinuxCNC
I'm tempted to pick one up - which version do people recommend?

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05 Dec 2020 11:15 #191117 by JackRay
I do not know at all .
You think that the difference of "Ram" can have a difference to such an extent that the raspberry remains blocked?

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05 Dec 2020 11:32 #191118 by snowgoer540

I'm tempted to pick one up - which version do people recommend?


I used the 4gb version
The following user(s) said Thank You: Mud

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06 Dec 2020 15:53 - 06 Dec 2020 16:00 #191226 by elovalvo

Hello ,

i built on u amd64 linuxcnc 2.9pre with switch kin branch. It works very well.

Now i want to make it all work on raspberry pi4

I'm trying to install a 64-bit Kernel Preemt-rt on my RaspPi4.

: www.instructables.com/64bit-RT-Kernel-Co...or-Raspberry-Pi-4B-/

works well, until the moment when it no longer happens on a simple file copy.


Can you help me please because I am not very easy in the matter.

thank you so much


The boot directory in rt-kernel is probably missing.
run this commands:
mkdir ~/rpi-kernel/rt-kernel
mkdir ~/rpi-kernel/rt-kernel/boot
Last edit: 06 Dec 2020 16:00 by elovalvo.

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