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  • behai
  • behai
06 Feb 2025 01:58
Replied by behai on topic PNCConf, Mesa 7I96S: "You are using a simulated-realtime version of LinuxCNC..."

PNCConf, Mesa 7I96S: "You are using a simulated-realtime version of LinuxCNC..."

Category: PnCConf Wizard

Actually I've just had another thought, what version of RPi imager are you using and what particular OS ?
I'm not a windows user and some people have had issues with RPi imager ?
Do you uncompress the downloaded file or just point RPi imager to the compressed file ?

Cheers
Rob
 

Hi Rob,

Thank you for your help and new information: I have missed the two links you posted on the previous reply.

I am using Ubuntu 24.04 Noble Wombat and Raspberry Pi Imager V1.8.5 to write image.

I downloaded the linuxcnc.org/iso/rpi-4-debian-bookworm-6...25-01-27-0404.img.xz and use it as is.

I did check the kernel with uname -a, and the output is Linux raspberrypi 6.12.11 #1 SMP PREEMPT_RT Mon Jan 27 02:47:25 AEDT 2025 aarch64 GNU/Linux.

AND I HAVE BEEN ABLE TO GET PNCCONF's Test/Tune Axis to test the X-axis motor: thank you again Rob.

-- For PNCCONF to work, we need to use menu-config to set Locale to en US.UTF8, after setting the locale, I had to restart the machine, otherwise the locale does not seem to take effect immediately.

To verify the machine locale, on a terminal window, run the locale.

Best regards,

...behai.


 
  • PeanutBlade
  • PeanutBlade
05 Feb 2025 22:19
Replied by PeanutBlade on topic LinuxCNC with raspberry Pi5. Ethercat and step/dir interface.

LinuxCNC with raspberry Pi5. Ethercat and step/dir interface.

Category: General LinuxCNC Questions

Thank you for all the feedback.
I think I will go fully EtherCAT for this machine to simplify the design and avoid multiple communication interfaces in a single machine.Mesa Ethernet or FlexiHAL controllers seem like a perfect fit for my second machine.
  • galrub
  • galrub
05 Feb 2025 21:33
unable to get gpio to work on Raspberry Pi 5 using latest image was created by galrub

unable to get gpio to work on Raspberry Pi 5 using latest image

Category: Advanced Configuration

Hello  I am using the latgest build, rpi-5-debian-bookworm-6.12.11-arm64-ext4-2025-01-27-0140.img, on a RP 5, logged in with user 'cnc'

runing:
uname -a
Linux raspberrypi 6.12.11 #1 SMP PREEMPT_RT Mon Jan 27 00:10:15 AEDT 2025 aarch64 GNU/Linux

halcmd -I
loadrt hal_gpio inputs=GPIO18,GPIO23,GPIO24,GPIO25,GPIO8 outputs=GPIO4,GPIO17,GPIO27,GPIO22,GPIO10,GPIO9,GPIO26
Note: Using POSIX realtime
hal_gpio: Failed to register input pin collection
hal_gpio: rtapi_app_main: Operation not permitted (-1)
<stdin>:1: waitpid failed /usr/bin/rtapi_app hal_gpio
<stdin>:1: /usr/bin/rtapi_app exited without becoming ready
<stdin>:1: insmod for hal_gpio failed, returned -1

loadrt hal_pi_gpio exclude=0xC3C03 dir=0x312839C
The Pi model 23 is not known to work with this driver but will be assumed to be be using the RPi2+ layout 40 pin connector
HAL_PI_GPIO: can't open /dev/gpiomem:  2 - No such file or directory
If the error is 'permission denied' then try adding the user who runs
LinuxCNC to the gpio group: sudo gpasswd -a username gpio
HAL_PI_GPIO: can't open /dev/mem:  13 - Permission denied
hal_pi_gpio: rtapi_app_main: Operation not permitted (-1)
<stdin>:2: waitpid failed /usr/bin/rtapi_app hal_pi_gpio
<stdin>:2: /usr/bin/rtapi_app exited without becoming ready
<stdin>:2: insmod for hal_pi_gpio failed, returned -1

any ideas?

I notice some disccusions about this matter in the forum but non of the ideas there helped me,
I tried 'sudo gpasswd -a cnc gpio' but got the reply that cnc is already a member of gpio.

any help will be most welcomed.
  • unknown
  • unknown
05 Feb 2025 21:20
Replied by unknown on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

The permissions for user CNC include group membership for gpio which is required. You do not need to change anything.
If you copy and paste the loading of the module from the man page it will work.
The problem was when you tried to load the module you inserted the word help. The driver wouldn't load because of "invalid parameter help".
Undo whatever you have done regarding udev. Reboot.
The permissions and group membership are setup whilst building the image.
Once again reread the man page, try loading the driver as shown in the example on the man page. If that doesn't work copy and paste the text on the terminal.
Remember with Linux that every character matters. Don't take any shortcuts and if something doesn't work as expected check what you typed and recheck your understanding of what should happen.
  • jairobbo
  • jairobbo
05 Feb 2025 20:55
Replied by jairobbo on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

no of course, I apologize, but there is I believe a problem related to hal_gpio.
I read the man page and there were some discrepancies in my code, I was hoping the permissions fix from the man page would be the fix, but it wasn't

Good luck to all!
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