Mesa 7i76e + pncconf + motion
- robertspark
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26 Sep 2017 13:14 #99459
by robertspark
Mesa 7i76e + pncconf + motion was created by robertspark
This is a newbie question I know,
In short, where is the motion calculated when using the Mesa cards (such as in my case the 7i76e), is it within the FPGA on the card or within the linxcnc software application
Is it possible to change the pin setting:
hm2_7i76e.0.stepgen.00.maxaccel
on the fly?
- periodically
- at servo-loop frequency (1khz)
In short, where is the motion calculated when using the Mesa cards (such as in my case the 7i76e), is it within the FPGA on the card or within the linxcnc software application
Is it possible to change the pin setting:
hm2_7i76e.0.stepgen.00.maxaccel
on the fly?
- periodically
- at servo-loop frequency (1khz)
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26 Sep 2017 13:36 #99461
by PCW
Replied by PCW on topic Mesa 7i76e + pncconf + motion
Acceleration and velocity are completely controlled by LinuxCNC
Generally the stepgen maxaccel parameter is set to a number about 25% greater
than linuxCNC will ever request. If you change it so its lower than LinuxCNCs
Acceleration settings in the INI file, you will cause following errors
Generally the stepgen maxaccel parameter is set to a number about 25% greater
than linuxCNC will ever request. If you change it so its lower than LinuxCNCs
Acceleration settings in the INI file, you will cause following errors
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