ODroid as raplacement for Raspberry Pi

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06 Mar 2023 20:30 #265975 by rodw
Re reading your issue, it seems you are running the N2+ headless.
We've only ever run it via an attached monitor, keyboard and mouse.
I wonder if that is your problem? Maybe there is a config or permissions issue for remote access?
There should be no need to start X as for me it boots into it after setting up users and time zone with an attached monitor and keyboard
Yoiu could try starting with the Armbian Sid XFCE desktop from the weekly rolling releases at the very bottom of this page, then add the custom kernel
www.armbian.com/odroid-n2/
This will give you the same 6.2 kernel and sid also has the  linuxcnc packages.

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06 Mar 2023 22:03 #265984 by CarterKraft

rodw post=265975 userid=20660Re reading your issue, it seems you are running the N2+ headless.
We've only ever run it via an attached monitor, keyboard and mouse.
I wonder if that is your problem? Maybe there is a config or permissions issue for remote access?
There should be no need to start X as for me it boots into it after setting up users and time zone with an attached monitor and keyboard
Yoiu could try starting with the Armbian Sid XFCE desktop from the weekly rolling releases at the very bottom of this page, then add the custom kernel
www.armbian.com/odroid-n2/
This will give you the same 6.2 kernel and sid also has the  linuxcnc packages.

I will try it with a monitor tonight, I have the correct cable now, the reason I was running headless in the first place.
 

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07 Mar 2023 05:10 #266014 by CarterKraft

Re reading your issue, it seems you are running the N2+ headless.
We've only ever run it via an attached monitor, keyboard and mouse.
I wonder if that is your problem? Maybe there is a config or permissions issue for remote access?
There should be no need to start X as for me it boots into it after setting up users and time zone with an attached monitor and keyboard
Yoiu could try starting with the Armbian Sid XFCE desktop from the weekly rolling releases at the very bottom of this page, then add the custom kernel
www.armbian.com/odroid-n2/
This will give you the same 6.2 kernel and sid also has the  linuxcnc packages.

It works with a monitor... 
Now trying the rest of the steps. 
 
The following user(s) said Thank You: rodw

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07 Mar 2023 07:19 - 07 Mar 2023 07:19 #266016 by rodw

This will give you the same 6.2 kernel and sid also has the  linuxcnc packages.
It works with a monitor... 
Now trying the rest of the steps. 

It would be interesting to try the sid image. It might be we left something out when we buit our image....
Last edit: 07 Mar 2023 07:19 by rodw.

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07 Mar 2023 19:06 #266054 by CarterKraft
It also wouldn't output to the monitor if the Odroid was already booted up.
Googling it seems something about "hotswap" config option.

I got linuxcnc installed but got a error and failed to load log.

Before installing the debs from your Gdrive I did the sudo apt update / install deal and then the debs from the drive didn't want to install from the usb because it said a newer version was already installed.

Do I need to make sure those debs get installed?

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07 Mar 2023 20:48 #266059 by rodw
Since we built that image, the 6.2 kernel has been officially released. We were on Release candidate 3 which is what Armbian Edge was using by default at the time. I think Debian still uses the 6.1 kernel but if its rolled forward to the 6.2 kernel, it will be ahead of ours so an apt upgrade could roll past our work.

The debs match our kernel and include the PREEMPT_RT kernel and all the supporting environment (hence multiple debs)
Perhaps start again and just install the debs first thing. Do an apt update afterwards but do not ever do an apt upgrade.
After that,  install the  Linuxcnc packages. It should work.
The following user(s) said Thank You: CarterKraft

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08 Mar 2023 20:55 #266149 by rodw
Last night, I reinstalled the image and debs I shared. Everything worked properly. I did make sure to install the linux-image deb last.
I then installed Debian Sid with XFCE from the Armbian community page.
The installation procees also went smoothly. Sid is one kernel version ahead of ours but it downgraded and worked perfectly.

I still have not succeeded getting the image onto an eMMC card.
With a freshly formatted eMMC, I used armbian-image to copy accross. It hung repeatedly, first at 62 % and again at 5%. It makes me think my eMMC card has a bit of damage.

It seems that the N2/N2++ is no longer offically supported as the premade images have been removed. But thay are no good for us anyway.
Latency ovenight with youtube and a few gears running was 130k. That is acceptible in my book. Video performance with youtube is abysmal which makes me think Armbian may not have the video drivers for the N2+ installed.
 
The following user(s) said Thank You: Bari

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09 Mar 2023 23:24 - 09 Mar 2023 23:41 #266242 by CarterKraft
All back up and running, I get this error when I try to load linuxcnc.
kernel  version 6.2.0-rt3-meson64

RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.9.0~pre1+git20230208.f1270d6ed7
Machine configuration directory is '/home/ckcplasmaodroid/linuxcnc/configs/sim.qtplasmac'
Machine configuration file is 'qtplasmac_l_imperial.ini.expanded'
INIFILE=/home/ckcplasmaodroid/linuxcnc/configs/sim.qtplasmac/qtplasmac_l_imperial.ini.expanded
VERSION=1.1
PARAMETER_FILE=imperial_parameters.txt
TPMOD=
HOMEMOD=
TASK=milltask
HALUI=halui
DISPLAY=qtvcp qtplasmac
COORDINATES=XYYZ
KINEMATICS=trivkins coordinates=xyyz
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
twopass:invoked with <> options
twopass:found ./sim_no_stepgen.tcl
twopass:found /usr/share/linuxcnc/hallib/qtplasmac_comp.hal
twopass:found ./custom.hal
Starting TASK program: milltask
Starting DISPLAY program: qtvcp
Shutting down and cleaning up LinuxCNC...
task: 45 cycles, min=0.000016, max=0.010155, avg=0.004249, 0 latency excursions (> 10x expected cycle time of 0.010000s)
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Debug file information:
Can not find -sec DISPLAY -var INTRO_GRAPHIC -num 1
Can not find -sec DISPLAY -var INTRO_TIME -num 1
Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 12, in <module>
    from PyQt5 import QtWidgets, QtCore, QtGui
ModuleNotFoundError: No module named 'PyQt5'
17346
17376
Stopping realtime threads
Unloading hal components
Note: Using POSIX non-realtime

 

Last edit: 09 Mar 2023 23:41 by CarterKraft.

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09 Mar 2023 23:58 #266245 by CarterKraft
installed pyqt5 different error 

 RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.9.0~pre1+git20230208.f1270d6ed7
Machine configuration directory is '/home/ckcplasmaodroid/linuxcnc/configs/sim.qtplasmac'
Machine configuration file is 'qtplasmac_l_imperial.ini.expanded'
INIFILE=/home/ckcplasmaodroid/linuxcnc/configs/sim.qtplasmac/qtplasmac_l_imperial.ini.expanded
VERSION=1.1
PARAMETER_FILE=imperial_parameters.txt
TPMOD=
HOMEMOD=
TASK=milltask
HALUI=halui
DISPLAY=qtvcp qtplasmac
COORDINATES=XYYZ
KINEMATICS=trivkins coordinates=xyyz
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
twopass:invoked with <> options
twopass:found ./sim_no_stepgen.tcl
twopass:found /usr/share/linuxcnc/hallib/qtplasmac_comp.hal
twopass:found ./custom.hal
Starting TASK program: milltask
Starting DISPLAY program: qtvcp
Qtvcp Error with loading webView - is python3-pyqt5.qtwebengine installed?
Shutting down and cleaning up LinuxCNC...
task: 1784 cycles, min=0.000009, max=0.010452, avg=0.009921, 0 latency excursions (> 10x expected cycle time of 0.010000s)

identityKinematicsSetup: coordinates:xyyz
   Joint 0 ==> Axis X
   Joint 1 ==> Axis Y
   Joint 2 ==> Axis Y
   Joint 3 ==> Axis Z
identityKinematicsSetup: Recommend: kinstype=both

Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Debug file information:
Can not find -sec DISPLAY -var INTRO_GRAPHIC -num 1
Can not find -sec DISPLAY -var INTRO_TIME -num 1
Note: Using POSIX realtime
[QTvcp.QTVCP.WIDGETS.MACRO_WIDGET][[41mCRITICAL[0m]  Qtvcp error with macro_widget - is package python3-pyqt5.qtsvg installed? (macro_widget.py:45)
[QTvcp][[41mCRITICAL[0m]  Aborted from Error Dialog
 Qtvcp encountered an error.  The following information may be useful in troubleshooting:
LinuxCNC Version  : 2.9.0~pre1+git20230208.f1270d6ed7

Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 508, in <module>
    _qtvcp = QTVCP()
             ^^^^^^^
  File "/usr/bin/qtvcp", line 117, in __init__
    from qtvcp import qt_makepins, qt_makegui
  File "/usr/lib/python3/dist-packages/qtvcp/qt_makepins.py", line 22, in <module>
    from qtvcp.widgets.screen_options import ScreenOptions
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/screen_options.py", line 24, in <module>
    from qtvcp.lib.message import Message
  File "/usr/lib/python3/dist-packages/qtvcp/lib/message.py", line 5, in <module>
    from qtvcp.widgets.dialog_widget import LcncDialog
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/dialog_widget.py", line 32, in <module>
    from qtvcp.widgets.macro_widget import MacroTab
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/macro_widget.py", line 87, in <module>
    class CustomSVG(QtSvg.QSvgWidget):
                    ^^^^^
NameError: name 'QtSvg' is not defined

 (qtvcp:464)
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 465, in excepthook
    self.shutdown()
  File "/usr/bin/qtvcp", line 428, in shutdown
    HAL.exit()
    ^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'exit'

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/qtvcp", line 508, in <module>
    _qtvcp = QTVCP()
             ^^^^^^^
  File "/usr/bin/qtvcp", line 117, in __init__
    from qtvcp import qt_makepins, qt_makegui
  File "/usr/lib/python3/dist-packages/qtvcp/qt_makepins.py", line 22, in <module>
    from qtvcp.widgets.screen_options import ScreenOptions
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/screen_options.py", line 24, in <module>
    from qtvcp.lib.message import Message
  File "/usr/lib/python3/dist-packages/qtvcp/lib/message.py", line 5, in <module>
    from qtvcp.widgets.dialog_widget import LcncDialog
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/dialog_widget.py", line 32, in <module>
    from qtvcp.widgets.macro_widget import MacroTab
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/macro_widget.py", line 87, in <module>
    class CustomSVG(QtSvg.QSvgWidget):
                    ^^^^^
NameError: name 'QtSvg' is not defined
5697
5728
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime

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10 Mar 2023 00:12 #266246 by rodw
Looks like you have not installed the debs I shared. Its trying to load RTAPI
What does uname -v say? needs to say PREEMPT_RT.

Also in the plasmac docs it refers to a script for  QTVCP dependencies.. Run it and it should come up when you sort out the kernel

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