Hi Max
I always say this. get it working with LinuxCNC first. in this case get Mint Installed, pre-empt install (RT Kernel stuff), LinuxCNC
get that working on the RPi4 first. if you can do that getting PP installed should be fairly easy (i say that never having tried to get it to work on a RPi so take it as FWIW).
Q - What would entail making Mint 17.3 Rosa work on RPI4 (ARM)?
you're going to have to compile Mint for ARM yourself as Mint does not offer ARM binaries
you can download the source and compile, going to take awhile
Q - Current LCNC RPi version is 2.8.1, what would entail making a 2.8.0~pre1 version as used with PP?
you can download 2.8.0.pre1 from web, it can be hard to locate but its out there. i believe its called linuxcnc-2.8.zip.
Q - How long a list of Pre-Requisites are we talking about? Is there a way to list them so a script can be written?
you have the LinuxCNC pre-reqs which are easy to handle then you have the PP pre-reqs which really aren't many
for 1.8.2 i had this info I posted, I have not done same for V2 yet
forum.linuxcnc.org/pathpilot/29983-notes...-2-source-code#74388
doing same from V2
operator@tormachpcnc:~/Downloads/v2.0.5-BETA-5-source$ make help
Makefile:423: linuxcnc-modules -- Build linuxcnc and all kernel modules
Makefile:479: python -- Copy over all tormach python files to the appropriate folder structure in run.
Makefile:493: build-clean -- Remove all files in the run folder
Makefile:501: clean -- Recursively clean compiled objects and libraries and lint output
Makefile:507: distclean -- Recursively clean all generated files (the nuclear option)
Makefile:514: strip -- Search for all compiled objects and strip out debugging symbols
Makefile:531: resources -- Copy resource files needed for GUI to /home/operator/tmc
Makefile:560: build -- Compile all objects
Makefile:564: install -- Build and install all files to the run directory
Makefile:607: run -- Launch the GUI with the configuration stored in or launch config picker if this file does not exist
Makefile:624: lint -- Run Pylint on all pythong source with results stored in .pyl files
so there is no make depend anymore. which means you have to find them
a one I recall is
gtksourceview-3.10.2.tar.xz
GladeV3
Q - Are there major hurdles forseen for doing an ARM Build of PP from latest Source Code?
just getting it to work. its really a mater of either dig through the make files and see what you need or just do a make and fix errors as you encounter them. keep good notes on what's needed for future reference.
also note you will not be able to directly apply updates to PP once it's working. the updates are for x86_64 not ARM. you can copy the python and other changes but not the binary changes from an update.
Q - Does the move to Ether control board offloads the requirement for pulse generation?
yes
Q - If I use Servos that have individual control board / encoders and are capable of receiving networked commands vs. pulses & direction, would that control output method be supported by LCNC?
yes., expect to really learn the HAL and INI files used to make it work though
Code:
[code][code][code]Hello,
I am interesed in the epic of RPi4->Mint->LinuxCNC->PathPilot stack as a working hardware-software stack system.
I allready have LCNC running (installed, not running a machine yet) on RPi4
For security, relevancy purposes I want to move off Mint (end of ESM coverage period in 4 days) - but that can be a different / v2 / epic / goal / stints
I have the hardware and time to allocate, I also have access to a very experienced Linux Developper.
What I lack is intimate knowledge / internal workings of PP & LinuxCNC
Sandra aka smgvbest you seem to have deep knowledge and I like the approaches you laid out.
I'm ordering some cutting tools and other parts from Tormach tomorrow for my mill, I will order the latest PP Source Code CD as per Sandra's direction.
I already own the v2.0 base imaging usb.
This would be to drive Ethernet Mesa Board to Steppers or Servos....or directly to networked smart servos (Clearpath)
Q - What would entail making Mint 17.3 Rosa work on RPI4 (ARM)?
Q - Current LCNC RPi version is 2.8.1, what would entail making a 2.8.0~pre1 version as used with PP?
Q - How long a list of Pre-Requisites are we talking about? Is there a way to list them so a script can be written?
Q - Are there major hurdles forseen for doing an ARM Build of PP from latest Source Code?
Q - Does the move to Ether control board offloads the requirement for pulse generation?
Q - If I use Servos that have individual control board / encoders and are capable of receiving networked commands vs. pulses & direction, would that control output method be supported by LCNC?
I see another forum thread are working hard on the RPi4+LCNC so some work / knowledge can be piggy backed from them, but the PP variant has its own set of constraints and challenges.
Max
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