Raspberry Pi 4 8Gb version 2 / Raspberry Pi OS 32-bit / Mesa 7c81 / Gecko G540

@PCW

You are correct.

Per:
www.raspberrypi-spy.co.uk/2014/08/enabli...on-the-raspberry-pi/

I enabled the SPI port and all is well:

screen shot:

@PCW
Per you post #195102:
 

Is there anything else I need to do before starting LinuxCNC?

Well you need hal/ini files setup for your hardware

Running pncconf for a 5I25-->G540 configuration should be a good start
You would just need to change the driver name (from hm2_pci to hm2_rpspi)
and the card name (from 5i25 to 7c81)

So, I am back to normal LinuxCNC land.

I am getting to old for this raspberry pi stuff. To use to the install live-cd or usb drive imagine install on a pc.

I will try the pncconf tomorrow.

Again, many thanks PCW

@PCW
I am now getting a Watchdog has bit error.

Per you post  #136606
Output is:


How can I tell which Kernel I am using? Preempt-RT kernel  or RTAI kernel

I am using Linux 2.9.0~pre0 from: ftp.us.debian.org/debian bookworm main

Which version of LinuxCNC for arm64  should I be using?

Looks like you are not running a real time kernel.

what does:

uname -a

report?

Yes, that is not a real time kernel, you need PREEMPT-RT kernel

@PCW and @andypugh



I followed andypugh advice from  #253210 and used the raspberry pi image from post #238020.

I had to add WiFi access and a different terminal.  The image does have a terminal, but you can not copy and paste in it.

After adding Mesaflash from synaptic, I was able to follow your directions from this topic and other previously mention post.

I now have two Raspberry Pi 4B 8Gb (vesion 1.4 and version 1.5) working

Thank you for your support.