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  • IronManDylan
  • IronManDylan
12 Mar 2025 21:38
Board not found when trying to flash mesa was created by IronManDylan

Board not found when trying to flash mesa

Category: General LinuxCNC Questions

Hi,

I am trying to flash my mesa 7i96s so that it can work with my 7i85. 

When I use the command 'mesaflash --device 7i96s --addr 10.10.10.10 --dbname3 7i85s --readhmid' I am getting a read out from the board (the pin funcs under 7i85d say "none". But when I use the command 'sudo mesaflash --device 7i96s --write 7i96s_7i85d.bit' mesaflash is saying "No 7I96S board found".

Does anyone know what is going on here? Thank you.
  • PCW
  • PCW's Avatar
12 Mar 2025 21:10 - 12 Mar 2025 21:26
Replied by PCW on topic OLD Lathe conversion to a CNC

OLD Lathe conversion to a CNC

Category: Turning

You could try reducing the servo thread rate to 2 ms
(and all stepgen P terms to 500)

You could also see if pinning the Ethernet IRQ to the top processor helps:

 

File Attachment:

File Name: pinirq_2025-03-12.txt
File Size:1 KB


first chmod +x pinirq.txt
then
sudo pinirq.txt [ethernet device name]

And see if that helps (it will only last until a reboot)


 
  • yoshimitsuspeed
  • yoshimitsuspeed
12 Mar 2025 21:01
Replied by yoshimitsuspeed on topic Setting up Probe Basic on my machine questions and issues

Setting up Probe Basic on my machine questions and issues

Category: QtPyVCP

Thanks
Haven't gotten back to the touch probe stuff but hope to soon.

Currently a couple other issues. The first is definitely PB related.
Every time I start PB it puts the coordinate readout in inches when linear units is set to mm in the ini.
G21 does switch it but it's still annoying. How do I set it so everything starts and always stays in mm?


The second I don't remember if this was an issue in other UIs but if I hit home x or y it does not lift Z before homing.
I see there is a go to home file in subroutines which I assume is used for home all but don't see anything specifically for individual axis. Would I need to create a subroutine for x and for y to get it to Z0 before homing them?
  • d12k6
  • d12k6
12 Mar 2025 20:37 - 12 Mar 2025 20:38
Replied by d12k6 on topic Arduino IO Expansion

Arduino IO Expansion

Category: Show Your Stuff

Hello, is it possible to create "internal buttons"? I mean not a physical button, but only in the software e.g.
if(value == x) internal_button = true
  • besriworld
  • besriworld
12 Mar 2025 19:44 - 12 Mar 2025 19:46
Replied by besriworld on topic OLD Lathe conversion to a CNC

OLD Lathe conversion to a CNC

Category: Turning

One time I only received a warning message.
I did the latency test using the script at @ tommylight
Most of the time the maximum delay is 190us
I think when it jumped up 700us I saved a file to a flash drive.

What should I do now?
 

File Attachment:

File Name: 1741790691.hw.txt
File Size:4 KB

File Attachment:

File Name: 1741790691.lat.txt
File Size:624 KB
  • webbyguy
  • webbyguy
12 Mar 2025 19:38
Replied by webbyguy on topic Can't eek out that last bit of jitter

Can't eek out that last bit of jitter

Category: General LinuxCNC Questions

Because I couldn't figure out how to disable smt for my fx 8350 cpu with the rtai kernel.  I tried switching to an X6 1090T.  I also disabled the thermal limits in bios.  My max jitter reduces to +/-14.4us (with all points within +/-5us except the ones right at +/-14.4us.  I wish I had taken a picture.)  I then turned the thermal limits back on, and I got about the same result I was getting for the fx 8350.  So, I turned the thermal limits back of again, but it didn't go back to the +/-14.4us max jitter.  It still looked the same as the fx 8350.  I tried resetting and messing with some other settings, and I can't get back to that +/-14.4us or better.  With some systems, is there some random timing at startup that causes different latency results even though there were no settings changes?
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