On 8/15/20 1:13 PM, Gene Heskett wrote:
I don't know exactly what Bari is doing with his *.pi,
but if you take inventory of everything I am doing with this rpi4, I
think most will be impressed. I'd go so far as to say amazed. Cutting
air making 50 copies of the chess pawn with that rpi4, I went online
with firefox, fully expecting to see it screwing with my exercise, but
in an hours worth of browsing the network news sites, I did not detect a
single instance of the lathe stalling.
So the next thing is to establish just exactly what is wrong with
linuxcnc running on some flavor of processor which is running linux that
may have been compiled using the linux tools of that processor family.
So lets see if a waterproof argument can be made.
The difference between the Raspberry Pi's and the Orange Pi's is that
the Raspberry Pi's have no known internal microcontroller. The Raspberry
Pi's still rely on external hardware (Mesa FPGA) for many applications.
The Orange Pi's have an internal microcontroller that may be used for
very fast software stepping. This is much like the Beagle Bone Black
with its two PVR's. The Orange Pi's however also have a powerful GPU for
running the GUI on a HD display. The Beagle Bone Blackdoes not.
Open loop as well as closed loop is very important to me as is a HD res
GUI at 30+ FPS. I also want to be able to tweak or make a custom GUI for
my different applications. I don't want to be stuck with a graphical
radar screen without a backplot or preflight like this:
https://imgur.com/nRqFCmw
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