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  • vre
  • vre
06 Mar 2025 19:55 - 06 Mar 2025 19:59
Replied by vre on topic mesa 7i33 7i37

mesa 7i33 7i37

Category: Driver Boards

Another question..
Why mesa fpga cards have pullup resistors ?
If i have breakout board with relays that the inputs are active high
when linuxcnc is closed mesa fpga outputs +5v to output pins
and it enables breakout board relays which is unwanted behavior.
Why not have pulldown resistors ?
For inputs this is not a problem because i can read gpio.000.in_not
also for outputs can do gpio.010.invert_output true
but this is when linuxcnc runs when fpga card is powered without
connected with linuxcnc what can i do ?
  • Chia
  • Chia
06 Mar 2025 19:44
LinuxCNC coreXY homing question was created by Chia

LinuxCNC coreXY homing question

Category: General LinuxCNC Questions

I am using byte2bot, and my XY axes are based on a CoreXY system.Right now, I’m trying to use homing, but when I enter the system, I can only use the XY axis after the joints are homed. However, I am unable to home both joints at the same time.Is there a way to skip joint homing and directly enter the XY system, then perform homing from there?
Like the attached picture.
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