My first steps with LinuxCNC - comments appreciated :) Using Mesa 7i80 and 7i78

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21 Jul 2022 00:52 #247898 by bw621
Thank you PCW.  I should have figured that one out.

Bill W.

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21 Jul 2022 01:04 #247900 by PCW

I did and I could use 1 or two of those configurations with some work arounds with the wiring but it would not be ideal.  I thought it was a good time to learn a bit more about the process.

Thanks for the reply!

Bill W.
 

Note that you can trade off special functions (stepgens, PWMgens, encoders etc) for
GPIO  in the hal setup so the pre-made configurations are more flexible than they may
appear at first glance.

 

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21 Jul 2022 01:21 #247901 by bw621
I also did not know that. Is there any special way this needs to be declared in the hal file?

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21 Jul 2022 03:49 - 21 Jul 2022 03:49 #247904 by PCW
For all special functions, you can specify the number of enabled modules
on the driver command line in the hal file (in stanzas like num_stepgens=3)

If a special function is disabled, the pin or pins affected revert to normal GPIO
Last edit: 21 Jul 2022 03:49 by PCW.

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