EMC2 running on Raspberry Pi?

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19 May 2019 19:29 #134283 by PCW
Replied by PCW on topic EMC2 running on Raspberry Pi?
I have a newer image that is stable (been up nearly a year 24/7) with an RPI3 and a 7C80, 7C81 or 7I90, but I dont know if it will work on a RPI2 (is the SPI interface identical?, that is will hm2_rpspi work on a RPI2? )

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19 May 2019 20:02 - 19 May 2019 20:03 #134284 by viktan
That images what you have are based on Linuxcnc or Machinekit?
Last edit: 19 May 2019 20:03 by viktan.

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19 May 2019 20:11 #134286 by PCW
Replied by PCW on topic EMC2 running on Raspberry Pi?
LinuxCNC 2.8

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19 May 2019 23:47 #134305 by tommylight
Might call you on that soon to do some testing.
Thnx.
Tom.

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20 May 2019 00:21 #134312 by jmr
Replied by jmr on topic EMC2 running on Raspberry Pi?
I started with this: http://unofficialpi.org/Distros/RealtimePi/ and got it working, it did not go with stock /boot/cmdline.txt. Now I'm trying to satisfy the dependencies... MAN that thing is SLOW. Maybe my sd card sucks, but this thing is still seriously slower than pentium2 with very old ide disk. But once it can run hal it may be useful.
@PCW: Is the version 3 good enough with opengl to run its own axis display? Well, those RPI "shields" look a lot like a problem solver, I'm quite interested.

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20 May 2019 01:42 #134318 by PCW
Replied by PCW on topic EMC2 running on Raspberry Pi?
OpenGL is not bad _IF_ you enable hardware OpenGL support, software OpenGL is hopeless...

Speed on my RPI3 is a bit slower than a Atom D525 but not unacceptable.

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20 May 2019 05:23 #134327 by viktan
Here is performance of raspi3 with HW OpenGL, machinekit and bigger g-code:

I will try install also linuxcnc
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20 May 2019 05:56 #134329 by Mike_Eitel
I have good results speeding rpi3 by using ssd. Finding a reliable USB to ssd took much longer than expected but finally I came to:

de.aliexpress.com/item/X800-2-5-inch-SAT...l-B/32791789269.html

Speeds up a lot and until now could handle all ssds I tried.
Mike
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