RPI4 Raspbian 64 bit & LinuxCNC
22 Dec 2023 07:18 #288807
by elovalvo
forum.linuxcnc.org/9-installing-linuxcnc...xcnc?start=20#287208
forum.linuxcnc.org/9-installing-linuxcnc...b-pi?start=20#288227
Replied by elovalvo on topic RPI4 Raspbian 64 bit & LinuxCNC
You can find the references here:I have not used a Pi with LinuxCNC for some time now. From memory the most success that I did have was when using a Pi4 with images made by elovalvo from this forum. I seem to recall seeing him mention an image here recently.
forum.linuxcnc.org/9-installing-linuxcnc...xcnc?start=20#287208
forum.linuxcnc.org/9-installing-linuxcnc...b-pi?start=20#288227
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22 Dec 2023 11:10 #288818
by cornholio
EG A RPi4 image with known good latency user xxx creates will be the same for user yyy & aaa. The only factors that can make a difference is whether wifi\bt & sound are on or any personal changes to config.txt, but the Linuxcnc RPi4 image is usable out of the box. Unlike PC's there is no variance ( apart from which model) tho I don't know if firmware will makes any difference, but generally older firmware don't seem to boot the latest image. Good cooling is a must.
RP-400 (1.8GHz) have a faster Processor than a RPi4 (1.5GHz), although they are the same platform, just different form factor and the keyboard controller is built into the RP-400.
RPi5 is a different beast due to the RP1 I\O chip (read the Raspberry Pi's version of a southbridge).
Replied by cornholio on topic RPI4 Raspbian 64 bit & LinuxCNC
With the RPi once an image is created that gets good latency it will work on any Pi of the same model.
I have only tried this 64bit version on a sim so far.
...
Phil
here you wrote "you tried this ... on a sim". I am trying to get *any* pi3/4/5 running on a sim - yet in vain. Could you shed some lights on hoe you got there, please?
My test environment
EG A RPi4 image with known good latency user xxx creates will be the same for user yyy & aaa. The only factors that can make a difference is whether wifi\bt & sound are on or any personal changes to config.txt, but the Linuxcnc RPi4 image is usable out of the box. Unlike PC's there is no variance ( apart from which model) tho I don't know if firmware will makes any difference, but generally older firmware don't seem to boot the latest image. Good cooling is a must.
RP-400 (1.8GHz) have a faster Processor than a RPi4 (1.5GHz), although they are the same platform, just different form factor and the keyboard controller is built into the RP-400.
RPi5 is a different beast due to the RP1 I\O chip (read the Raspberry Pi's version of a southbridge).
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