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It should work. The benefit here would be the PCI slot.. If someone were to make hardware for it. GPIO step generation is still probably jittery

Finally got it downloaded and ran per instructions but the sudo dpkg -i linux-image ... exited with errors - some of this looks like it might be related to raspberry PI but before I execute this, I thought it best to ask if this is "normal". Please see attached.

Knowing how much blood, sweat & tears Rod has put into the project, maybe you'd like to donate a RPi5 so Rod might be able to support it quicker.

why not , you can allready boot RPI4 (CM4) from NVMe

Looks good, wonder if it'll support NVMe boot .

Here we go again and now it might have the power to actually work? Key features include:

• 2.4GHz quad-core 64-bit Arm Cortex-A76 CPU
• VideoCore VII GPU, supporting OpenGL ES 3.1, Vulkan 1.2
• Dual 4Kp60 HDMI® display output
• 4Kp60 HEVC decoder
• Dual-band 802.11ac Wi-Fi®
• Bluetooth 5.0 / Bluetooth Low Energy (BLE)
• High-speed microSD card interface with SDR104 mode support
• 2 × USB 3.0 ports, supporting simultaneous 5Gbps operation
• 2 × USB 2.0 ports
• Gigabit Ethernet, with PoE+ support (requires separate PoE+ HAT, coming soon)
• 2 × 4-lane MIPI camera/display transceivers
• PCIe 2.0 x1 interface for fast peripherals
• Raspberry Pi standard 40-pin GPIO header
• Real-time clock
• Power button

raspberry pi 5 coming soon!

www.forum.linuxcnc.org/9-installing-linu...-raspberry-pi-4b-400

Hei thank you for reply.
First if all sorry that my post was simple. So I will expand my post with some extra words.

I have a machine that I builded for 10 years ago and was always running machine with a regular pc that has some form for linuxcnc.
At the moment latency is a issue and I decided to change system. I still use the same g540 the thing just unbreakable.

Issue so far is that I never used a raspberry pi before. And i am struggling now to instal a version that will work. i tried so far with official Linuxcnc system image for raspberry pi and stoped right at the boot. Some error about old operating system. I saw it was discussed in some thread.

I tried other way. Installed raspberry os and there got error apt-get not allowed anymore. do you guys have a link where I can find instructions how to instal linuxcnc on raspberry pi 4 (8 gb).

Little bit about my machine.
It is small but capable of machining softer metals like alu.
Dual x axis and z axis 3a motor
Y axis 3,5a motor
24v power supply
Wj220 vfd running 1,5kw spindle
G540 controls everything.