Call external subroutine not working in recent versions of LCNC

Hello chaps,

I was recently tasked to do a small job milling an ellipse into some plastic, and figured I'd use an ellispe subroutine I'd found around these parts some time back to simplify the coding entry. I had previously used this subroutine in LCNC 2.7.4 without a hitch, invoking the 'o<ellipse> call [p1x] [p1y]...' from a bare bones ngc file.

When I tried running the same code today in LCNC 2.7.12 and calling the ellipse function I got an error in Axis claiming 'EOF in file: filename calling the subroutine.ngc seeking o-word: o<ellipse> from line 5'.

I've tried simplifying things to chase down this error by creating two test codes. The first is the base ngc from which I'm calling the sub (named Call_test.ngc):
And the called sub itself (named test.ngc):
But the error still persists:


I have confirmed that my PROGRAM_PATH is pointing to the default nc_files directory and my 'test.ngc' subroutine is located in this folder. I'm assuming the error suggests that the subroutine has been correctly called and found, but it's bailing out partway through.

Has something changed in the way subroutine calls are handled between 2.7.4 and 2.7.12 that isn't reflected in the online documentation, or am I missing something else obvious?

Hello,

could you check whether the files are formatted in UNIX style and not in DOS style?

Regards,
BEN

Hi Ben,

I can confirm that both 'Call_test.ngc' and 'test.ngc' are being saved as UNIX format within gedit.

The subroutine 'test.ngc' will actually load into Axis if opened directly from the File menu (as will the original 'ellipse.ngc' I wanted to use to begin with); they just obviously won't do anything if run directly from Axis.

I think you might need to set SUBROUTINE_PATH
linuxcnc.org/docs/2.7/html/config/ini-co...ml#_rs274ngc_section

There is a meaningful entry [DISPLAY]PROGRAM_PREFIX but no PROGRAM_PATH as far as I am aware.

But it is odd if things used to work and don't now, because I am pretty sure that nothing has changed there.

Hi Andy,

No joy. Specifying SUBROUTINE_PATH as the location of the 'test.ngc' still gives the same error.

And apologies on my part - I mentioned in my first post about PROGRAM_PATH being specified as the location of my default nc_files folder, but actually meant PROGRAM_PREFIX.

Are you able to run a copy of my two codes I posted at the top of this thread to check that it does do the right thing for you?

As a quick test I've installed a copy of the Ubuntu 10.04 LiveCD onto a virtual machine (LCNC 2.5.0) and can confirm that the above subroutine call works, so it must be something to do with the install on my actual milling PC that's different. I'll try getting the virtual machine upgraded to 2.7.12 to see if it suddenly stops working.