Hi Gene
On 5/1/21 8:32 PM, Gene Heskett wrote:
On Saturday 01 May 2021 09:12:41 Thomas J Powderly wrote:
Hello
here is an esp32 stepgen for linuxcnc
this snuck under my radar, i missed it by a few months
it maybe of use
The example setup was
laptop > eth > w5500 module > esp32 > stepper drives > stepper motors
the video shows the linuxCNC logo running and a single closed loop
stepper
https://www.youtube.com/watch?v=_Goi4YVU0js
the github has the code
https://github.com/Deotti-cl/linuxcnc-esp32
i haven't looked hard yet
but i think the comms are really spi
and so it might hookup to a pi with a very short cable.
tomp
Looking at the driver, no, its udp over ethernet.
you have to how he solved his problem.
He used udp, true, but the info flows from a laptop to an ethernet port to a
w5500
which connects to the esp32 thru spi.
So the ethernet and udp is not needed if a raspberry pi replaces his laptop,
and spi is used to the esp32.
Yes his driver uses udp, and his hdwr converts the packets to spi.
I think the system can be simplified with a new driver.
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Cheers, Gene Heskett
on another note:
MXMaster has re-written the arisc driver (stepgen) for orangepi
I am running it now with great video, AXIS, and 6meters/minute,
And I have just gotten (same as you) the servo-steppers
"""
Three-phase 57 Series LC57H380+LCDA357H nema 23 closed loop stepper motor and
drive
"""
They were a great deal off alibaba at 50 bucks each with 21$ shipping each.
So, I can bench test these crazy fast steprates.
take care & stay safe
tomp
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