Stepgen and 4-phase steppers

Nice.

Hi guys, me once again,

I do not know, if this question can be related to this topic.. but here it goes:

Can linuxcnc control BLDC motor with L298N driver? I have seen a youtube video (), where one controls BLDC with L298N and Arduino. I have attached the diagram (which I copied from the video).

If, however, question is not related to this topic, I will delete it.

Also, if you know information related to my question, I would appreciate if you could direct me.

Sincerely,

linuxcnc.org/docs/html/man/man9/bldc.9.html
linuxcnc.org/docs/html/man/man9/stepgen.9.html
Both of them will do what you want, BLDC with no feedback or stepgen with step type 3 or 4.

Beautiful! Thank you!
For hal file I imagine its very similar to 4-phase case (with corresponding stepgen, and pin changes)..
What about ini file? Shall it be set somewhat specific (in case I just want the motor to spin max rpm)?
In coming days will try to set up linuxcnc config, and report/post the results.

Best!

Skec wrote: What about ini file? Shall it be set somewhat specific (in case I just want the motor to spin max rpm)?

Nothing specific, just make it spin, then you can tweak and tune as much as you like.

Hi,

I have tried to run BLDC motor on linuxcnc, using step_type=3.

1. With 5 V, the motor slightly vibrates, when in linuxcnc pressing + or - continuous movement. It seems like trying to keep position (when I spin motor with my hand a bit, it returns to its position (both CW and CWW).

2. With 12V, 3 wires, connecting motor with driver start to smoke.. (motor still does not move, feels like keeping the position).

I have attached the hal and ini file.

In hal file, I think stepgen.capture-position is not needed (?).
Also, I tried to add stepgen.N.maxvel. However, motor did not spin.

What shall be my next moves?

Also, could you please suggest, how shall hal file look using man9 bldc?

Sincerely,

Simonas