On 9/27/22 14:59, Alan Condit wrote:
I have finally made some progress on this project.
I rewired the X, Y and Z axis to use the 7i76e double ended connections to the
Step/Dir on the KL5056. That fixed the no motion problem. Somehow I had
switched the connections between my probe and the Y-axis limit switch. I got
that fixed.
Now I can fire up the controller and myPCBMill. I can home all 3 axis and all
axis jog in the correct directions. Occasionally I get error messages but I
haven’t got them consistently enough to tell what the problem is. So now I need
to work with it to see if the timing for the threads are doable.
I suspect those errors would vanish if you buy a usb3 to ethernet
dongle, and configure
ALL the normal network stuff to use it instead of the onboard ethernet.
I'd assume the other
stuff like apt or whatever, is stealing some of the bandwidth from the
onboard ethernet.
LCNC expects not to have to share time or address space of its hardware,
with anything else.
So move "anything else" to the usb dongle.
I am running RPi4-4gb with Buster Arm64 with Linuxcnc 2.8.2 with
5.10.74-rt54-v8+ SMP PREEMPT_RT kernel. I guess I can build Linuxcnc-2.8.4 for
it.
That will stress the u-sd some, so I'd get a startech usb to sata
adaptor and put an SSD on it to
be used as workspace, That way the main traffic of a compile will not be
imposed on the u-sd,
only the final install of the built debs with be imposed on the u-sd. It
will also be 15 to 30x faster
than the u-sd. I also have a 5 amp box supply on my rpi4b since I've
two SSD's on it.
I am assuming you are still booting from the u-sd, I've never made the
boot switch on mine, it
simply doesn't work.
Take care and stay well, Alan.
Alan
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Cheers, Gene Heskett.
--
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-Ed Howdershelt (Author, 1940)
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- Louis D. Brandeis
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