how to create a link Button help me please !!

There may be neater ways with ngcgui or gladevcp, but I think this will work.

You can make EMC2 run a G-Code command using the MDI_COMMAND option in the INI file.

You can create a "Custom M-code" from M101 to M199 that can be any executable file.
Firstly, as written the button does nothing at all, you probably need:
In the INI file you need

1) In the [HAL] Section
2) Add a section [HALUI]

3) Create an M101 executable file and put it in your PROGRAM_PREFIX directory. Right-click it to make it executable. it should start withAnd then the commands you would use to start the python script from the command line.

Alternatively you can probably start the M101 file with "#!/usr/bin/env python" and then paste in all the python from your existing file.

You then need to link the button you created to the MDI_COMMAND pin, so, in the postgui HAL file add this line:

Raen wrote:

net btn1 halui.mdi-command-00 <= pyvcp.program

i dont understand this step.

You need to create a link between the button and EMC2. At the moment it is just a button, it doesn't do anything. This line makes a link between the button (pyvcp.program) and the MDI_COMMAND. It then calls that "signal" btn1, but you could call it anything you like.

It has to go in the postgui.hal file as until the GUI has loaded and created the pyvcp panel, there is no pyvcp.program pin to link. (You can change the name of the pin to anything you want as long as it matches the <halpin> tag in the pyvcp xml file.)

Raen wrote:

3) Create an M101 executable file and put it in your PROGRAM_PREFIX directory. Right-click it to make it executable. it should start with
(how to create an M101 executeable file? .exe / .py / .xml ??)

I would probably use Gedit (the text editor). Just create a new file, and call it M101, and save it.

(what is the PROGRAM_PREFIX directory?)

It is the directory where EMC2 looks for files. PROGRAM_PREFIX is a setting in the INI file which defines where it is.

#! bin/sh

---

(where should i put this command?)

In the text file you created above. Setting the file to be executable (right-click or use chmod) tells Linux that the file is a program. the <hash><exclamation><space> sequence tells Linux that the rest of the first line is the path to the interpreter that will execute the file, in this case the command shell.

I assume up to step 3 all works. Can you issue a M101 in a program and does it work?

Step 4 looks fine, not sure what your asking on step 5.

John

The program button will run the MDI command 00 which is M101. Is program.py part of M101?

John