LinuxCNC + Orange Pi

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28 May 2020 06:19 #169198 by fb
Replied by fb on topic LinuxCNC + Orange Pi
Hi MX_Master,

So I've got linuxcnc up and running on my orange pi (installer script works extremely well, thank you for all your work on that) - I haven't actually connected it to driver/motors quite yet, but I ran the latency test and note that jitter/latency is still quite high.

Is this something I should be concerned about, or does the jitter/normal latency not matter so much given that stepgen can now run on the separate RISC core (ie: not shared with the main CPU/kernel)?

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28 May 2020 07:20 #169199 by MX_Master
Replied by MX_Master on topic LinuxCNC + Orange Pi
Latency values for these boards are all about 50-100 us. Old kernel and OS versions has a bit better values. But when we using a separated CPU core, these latency values can be ignored.

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30 May 2020 02:16 #169378 by fb
Replied by fb on topic LinuxCNC + Orange Pi

MX_Master wrote: ... But when we using a separated CPU core, these latency values can be ignored.


This is amazing news. I'm going to try things out properly with actual hardware very soon.

Is it just me, or does this make the orangepi's (or rather, the Allwinner H3/5/6 CPUs) kind of the ultimate platform in terms of cost vs performance for linuxcnc/machinekit?

I feel like this should be getting more attention :)

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30 May 2020 06:50 - 30 May 2020 06:52 #169387 by gello0
Replied by gello0 on topic LinuxCNC + Orange Pi
I am trying to install this on my orange pi zero (allwinner H2+) with latest armbian bionic but i keep getting these errors

install.log

Thank you.
Last edit: 30 May 2020 06:52 by gello0.

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30 May 2020 09:50 #169402 by tommylight
Replied by tommylight on topic LinuxCNC + Orange Pi
Enable the "partner" and "source code" repositories in the software sources, do an update and try to install again.

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30 May 2020 11:28 #169414 by MX_Master
Replied by MX_Master on topic LinuxCNC + Orange Pi

gello0 wrote: I am trying to install this on my orange pi zero (allwinner H2+) with latest armbian bionic but i keep getting these errors

install.log

Thank you.

Try Debian ;)

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31 May 2020 13:56 #169516 by gello0
Replied by gello0 on topic LinuxCNC + Orange Pi

tommylight wrote: Enable the "partner" and "source code" repositories in the software sources, do an update and try to install again.

sorry I'm new to this, How do I enable "partner" and "source code" repositories?

MX_Master wrote: Try Debian ;)

Getting same error in debin and Ubuntu, I downloaded them from orangepi.org

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31 May 2020 14:13 #169517 by MX_Master
Replied by MX_Master on topic LinuxCNC + Orange Pi
Use Armbian images ;)

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31 May 2020 14:19 #169518 by gello0
Replied by gello0 on topic LinuxCNC + Orange Pi
I was originally using armbian image that's didn't work either :(

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31 May 2020 14:30 #169520 by MX_Master
Replied by MX_Master on topic LinuxCNC + Orange Pi
Try Armbian Buster and make
apt update & apt upgrade

before project installation.

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