Raspberry Pi 4 with PlasmaC

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08 Jun 2020 13:49 - 08 Jun 2020 14:04 #170642 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
Hi Peter,
This is what I installed

buildbot.linuxcnc.org/dists/buster/maste...reempt/binary-armhf/

one of the latest a few days ago, down in the list

June 3 is the one I installed.
Last edit: 08 Jun 2020 14:04 by tecno. Reason: add date

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08 Jun 2020 14:05 #170644 by PCW
Replied by PCW on topic Raspberry Pi 4 with PlasmaC
Right, that's LinuxCNC but not the kernel...

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08 Jun 2020 14:11 #170647 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
OK, so what do I need to download?

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08 Jun 2020 14:21 #170651 by PCW
Replied by PCW on topic Raspberry Pi 4 with PlasmaC
I'm not sure what the current recommendation is for this

I used JTs instructions for my RPI4:

gnipsel.com/linuxcnc/uspace/rpi4-rt.html

But maybe someone who has done this recently can suggest the easiest way

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08 Jun 2020 22:03 #170705 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
After 6 hours of compiling I get this, is this right?




uname -a

Linux raspberrypi 4.19.118-v7l+ #1311 SMP Mon Apr 27 14:26:42 BST 2020 armv7l GNU/Linux
Attachments:

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08 Jun 2020 22:07 #170707 by tommylight
That looks much better.
Do you get lost connection now ?

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08 Jun 2020 22:09 #170708 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
Now time for this old fart to get some rest, will report tomorrow.


What puzzles me is uname only says SMP and not SMP RT PREEMPT

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08 Jun 2020 22:16 #170711 by tommylight

What puzzles me is uname only says SMP and not SMP RT PREEMPT

Yup, that is why i asked, seems strange.

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08 Jun 2020 22:18 #170712 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
Looks lika another day compiling LOL

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08 Jun 2020 22:19 #170713 by tommylight
Test it first, check if it works, no need to recompile/ The latency looks right where it should be.

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