New micro PC problems

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06 Feb 2024 03:04 #292613 by B.Reilly01
Replied by B.Reilly01 on topic New micro PC problems
Not sure what that does, but it had no effect... The first error pops up immediately on opening LinuxCNC and the Smart Serial port 0: Dolt not cleared from previous servo thread follows close behind. Other errors pop randomly if I leave the window open long enough

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06 Feb 2024 04:03 #292617 by PCW
Replied by PCW on topic New micro PC problems
Can you launch LinuxCNC and then (in a terminal) type:

halcmd show param *.tmax
 and post the results here
 

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06 Feb 2024 11:17 - 06 Feb 2024 11:38 #292643 by B.Reilly01
Replied by B.Reilly01 on topic New micro PC problems
Sure thing:

Parameters:
Owner Type Dir Value Name
36 s32 RW 0               hm2_7i97.0.read-request.tmax
36 s32 RW 7031644   hm2_7i97.0.read.tmax
36 s32 RW 56740        hm2_7i97.0.write.tmax
29 s32 RW 6012          motion-command-handler.tmax
29 s32 RW 23456        motion-controller.tmax
39 s32 RW 14320        pid.s.do-pid-calcs.tmax
39 s32 RW 14072        pid.x.do-pid-calcs.tmax
39 s32 RW 5820          pid.y.do-pid-calcs.tmax
39 s32 RW 10496        pid.z.do-pid-calcs.tmax
30 s32 RW 7064596    servo-thread.tmax


Looks like I have a real problem on hm2_7i97.0.read??
Last edit: 06 Feb 2024 11:38 by B.Reilly01.

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08 Feb 2024 01:06 #292805 by B.Reilly01
Replied by B.Reilly01 on topic New micro PC problems
Any ideas what could cause this? Is my 7i97T defective?

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08 Feb 2024 01:21 #292807 by tommylight
Replied by tommylight on topic New micro PC problems
Try another 5V power supply for the Mesa 7i97.
And another network cable.
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08 Feb 2024 01:27 #292810 by PCW
Replied by PCW on topic New micro PC problems
36 s32 RW 7031644   hm2_7i97.0.read.tmax

Looks like multiple ms of response time, it could be cable or power related
but most likely a problem with the host PC (either setup, OS dependent or inherent
in the PC hardware)

If you get a red init light after LinuxCNC loses communication, the problem
is _not_ power related.
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08 Feb 2024 02:10 #292812 by rodw
Replied by rodw on topic New micro PC problems
Please review th e heading  Network latency on page 3 of the guide I've been updating ?
docs.google.com/document/d/1jeV_4VKzVmOI...diY/edit?usp=sharing
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08 Feb 2024 11:29 #292839 by B.Reilly01
Replied by B.Reilly01 on topic New micro PC problems
Thank you all of you.  After reviewing your document Rod, I realized my m.2 network card (wireless) was Realtek.  Uninstalling this solved the problem.  I ordered an Intel M.2 wireless card and will give that a shot.  If that also has a problem I'll try USB, then I'll just accept that I don't get wireless.
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08 Feb 2024 15:42 #292852 by PCW
Replied by PCW on topic New micro PC problems
Usually USB WIFI dongles are fine, conversely MiniPCIE WIFI cards
are often horrible for network latency. I suspect this is because
they include BIOS ROMs that contain unspeakably bad code...
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09 Feb 2024 09:59 - 09 Feb 2024 09:59 #292922 by rodw
Replied by rodw on topic New micro PC problems
I suspect that the unspeakably bad code means that the m.2 is not much different to pcie.
However I have noticed in more recent distros, performance has imnproved in one instance my Gigabyte Brix ran  horrific latency with the pcie card installed when I first started so I ran a USB wifi dongle.  On Bookwoem its now fine.
Last edit: 09 Feb 2024 09:59 by rodw.

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