Am I doing this right? GVCP Buttons UI and PythonScrip (Arduino)

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CNC4Life
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29 Jun 2021 03:19 #213208 by CNC4Life

Am I doing this right? GVCP Buttons UI and PythonScrip (Arduino) was created by CNC4Life

Hello guys and gals. I'm looking for a little help, I'm slowly working through a machine upgrade and I'm struggling with HAL a bit.

Ok, my first issue is I'm trying to link pins from usrload (user space) with a python script for my ATC to some GVCP buttons.
All the tutorials lead me to believe I should just be able to go
net ButtonName user.Python <= gvcp.Button in post_gui_call_list.hal

But instead, it is more like
arduino.hal
net pythonSig user.Python

GVCP.hal
net gvcpBtn gvcp.Button

post_gui_call_list.hal
unlinkp user.Python
unlinkp gvcp.Buttom
net ButtonName user.Python <= gvcp.Buttom

Also, is there a way to net a bunch of things together. Like map machine-enabled, or e-stop to a bunch of different pins? I know I can use "and" but that also seems like I'm doing it wrong.

I've attached the files in question, I appreciate any help in advance. It works but seems like this can't be the best way.

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andypugh
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29 Jun 2021 22:43 #213284 by andypugh

Replied by andypugh on topic Am I doing this right? GVCP Buttons UI and PythonScrip (Arduino)

Signal names and pin names are valid in all HAL files, so to connect pins in different HAL files, just use the same signal name.

Your example will work, but it makes no sense to link to two signals, then unlink and relink differently.

You could just have

net ButtonName user.Python in one file and net ButtonName gvcp.Button in the other.

And a net can consist of one signal name, one output "writer" pin and as many input ("reader") pins as you need.

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CNC4Life
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30 Jun 2021 20:39 - 30 Jun 2021 20:40 #213368 by CNC4Life

Replied by CNC4Life on topic Am I doing this right? GVCP Buttons UI and PythonScrip (Arduino)

Oh, I see! I'll give it a try! I knew it didn't seem right.

Before I was doing user.Python <= gvcp.Button this would cause an already mapped error. I tried to pythonSig <= gvcpBtn and that gave an unknown pin pythonSig or gvcpBtn.

Thanks a bunch.

Last edit: 30 Jun 2021 20:40 by CNC4Life.

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andypugh
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02 Jul 2021 23:52 #213520 by andypugh

Replied by andypugh on topic Am I doing this right? GVCP Buttons UI and PythonScrip (Arduino)

HAL takes us all a little while to grasp. But before you know where you are you will be jumping out of bed with an an idea and looking for pen and paper to write the idea down.
(Happened to me when I realised that LinuxCNC could do gear hobbing on a a milling machine)

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tommylight
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03 Jul 2021 10:01 #213548 by tommylight

Replied by tommylight on topic Am I doing this right? GVCP Buttons UI and PythonScrip (Arduino)

andypugh wrote:
HAL takes us all a little while to grasp. But before you know where you are you will be jumping out of bed with an an idea and looking for pen and paper to write the idea down.
(Happened to me when I realised that LinuxCNC could do gear hobbing on a a milling machine)

Happened to me a lot, hal is magnificent!