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Halui Component

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02 Jul 2019 19:02 #138426 by stegrg
Replied by stegrg on topic Halui Component
phillc54,

I finally got around to trying your code by pasting it into a .axisrc file. When I run Hal Configuration within LinuxCNC, I don't see the step-activated pin anywhere in the tree. Should I be able to see it somewhere?

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02 Jul 2019 21:32 #138441 by Grotius
Replied by Grotius on topic Halui Component
Hi,

It was Python code :
comp.newpin('step-activated', hal.HAL_BIT, hal.HAL_IO)
    comp.ready()

You would see this new pin by the name : step-activated

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02 Jul 2019 23:04 #138454 by phillc54
Replied by phillc54 on topic Halui Component
Yes, it should appear as axisui.step-activated

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03 Jul 2019 16:32 #138542 by stegrg
Replied by stegrg on topic Halui Component
Sorry to further bother you guys with this but I'm still having issues getting the code to work. I created an .axisrc file with the sample code copied into it. I saved the file in my home/username folder location. Here is a screenshot:


After running Hal Configuration in LinuxCNC, I can't see the step-activated pin in Axisui. Am I missing a step?
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03 Jul 2019 16:40 #138544 by andypugh
Replied by andypugh on topic Halui Component
Do you see any error messages if you start LinuxCNC from the command line (command "linuxcnc" )

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03 Jul 2019 17:00 #138548 by stegrg
Replied by stegrg on topic Halui Component
No, it starts up without any issues.

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03 Jul 2019 17:54 #138552 by andypugh
Replied by andypugh on topic Halui Component
How about if you put a deliberate error in the .axisrc file?
(Just to be sure that it is actually running)

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03 Jul 2019 23:49 - 04 Jul 2019 00:50 #138577 by phillc54
Replied by phillc54 on topic Halui Component
I'm guessing you are using LinuxCNC 2.7, if so then the user_hal_pins() function is not available.
If that is the case then I think you can use the function user_live_update() but will need to create a new component like:
Create a new component with this in .axisrc in lieu of the user_hal_pins() function:
h = hal.component("stepstatus")
h.newpin('step_activated', hal.HAL_BIT, hal.HAL_OUT)
h.ready()
This should give you a pin named stepstatus.step-activated

Edit: Only took two edits to get it right, I don't use 2.7 enough...
Last edit: 04 Jul 2019 00:50 by phillc54.

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04 Jul 2019 00:32 #138579 by tommylight
Replied by tommylight on topic Halui Component
He is using 2.7.14. I do recalled you or someone mentioning that the .axisrc workaround works on 2.8 or 2.9.
The following user(s) said Thank You: phillc54

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04 Jul 2019 13:01 #138622 by stegrg
Replied by stegrg on topic Halui Component
Everybody,

Thank you very much for the assistance! I finally have it working. I had to make some small modifications to the .axisrc file after stitching it together with the latest suggestions. I have attached it below for future reference if any else may run into the same issue.



I'm going to try and hijack the LinuxCNC Run button so that I can use it to reset the step_activated bit once activated.
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