Spindle control for a 2nd spindle

andypugh
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26 Apr 2013 07:22 #33221 by andypugh

Replied by andypugh on topic Spindle control for a 2nd spindle

mmt wrote:
How can I create a second PWM generator and link it that I can use both?

If you look in your HAL file you will see
loadrt pwmgen output_type=0
change it to say
loadrt pwmgen output_type=0

Then duplicate all the pwmgen.0 HAL lines for pwmgen.1

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arvidb
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26 Apr 2013 10:35 #33225 by arvidb

Replied by arvidb on topic Spindle control for a 2nd spindle

andypugh wrote:
...
change it to say
loadrt pwmgen output_type=0

Then duplicate all the pwmgen.0 HAL lines for pwmgen.1

I'm guessing a bit now, but I think Andy meant
"change it to say
loadrt pwmgen output_type=0,0"

which should give you another pwmgen (called "pwmgen.1"). The "0,0" means create two pwmgens of type 0.

All this from the manual only, I haven't tested it myself:
linuxcnc.org/docs/html/man/man9/stepgen.9.html

The following user(s) said Thank You: mmt

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mmt
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26 Apr 2013 22:34 #33250 by mmt

Replied by mmt on topic Spindle control for a 2nd spindle

arvidb was correct Andy. It was 0,0 and then pwmgen.1 worked.

Thank you both for your help.

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