can i make adjustable stepgen.n.maxvel in halpin component

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06 Jun 2023 11:05 #273005 by fery15sty
i want to connect pyvcp spinbox to stepgen.n.maxvel value

but i can't find the stepgen.n.maxvel pin in hal components

can anyone help me?

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07 Jun 2023 01:21 - 07 Jun 2023 01:27 #273049 by fery15sty
I'm using stepgen.3 and stepgen.4 for external eoffset movement. I want speed down can be adjusted with spinbox pyvcp
#speed eoffset up movement
setp stepgen.3.position-scale 1
setp stepgen.3.maxvel 20000
setp stepgen.3.steplen 1
setp stepgen.3.stepspace 0
setp stepgen.3.dirhold 35000
setp stepgen.3.dirsetup 35000
setp stepgen.3.maxaccel 20000

#speed eoffset down movement
setp stepgen.4.position-scale 1
net speed-probe-eoffsetdown stepgen.4.maxvel <= pyvcp.probe-eoffset
setp stepgen.4.steplen 1
setp stepgen.4.stepspace 0
setp stepgen.4.dirhold 35000
setp stepgen.4.dirsetup 35000
setp stepgen.4.maxaccel 20000

 
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Last edit: 07 Jun 2023 01:27 by fery15sty.

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10 Jun 2023 19:31 #273286 by andypugh
If maxvel is a parameter then it can't be connected in HAL.

It would be possible to make a Python HAL component that watches the spinbox value and issues a "setp" command to change the value.

linuxcnc.org/docs/stable/html/hal/halmodule.html

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