On 8/9/22 22:01, andrew beck wrote:
And I'm helping him here in the ground guys.
We want a config to get started.
And gene are you still using these boards?
Never have used that one. AIUI, its considerably newer that the 7i90HD.
People forget that I may be the first to run LinuxCNC, on an rpi. started
with rpi3b's long before the rpi4b.
You mention 7c80, but I've only used the 7i90HD and a trio of 7i42TA's.
That is an spi setup. At very high speeds, 42 megabaud to the mesa card,
replies come back to the pi at 25 megabaud.
And w/o checking, ISTR the 7C80 is an ethernet card. So I'm not in a
position
to offer that much help with the 7C80.
As for the rpi4, the stock raspian/raspios, buster install works very
well once
the kernel has been replaced with a preempt-rt kernel. That kernel is
available
as a tarball of about 28 megs from my web page in the sig, and
installation is
pretty simple, all you need is a usb to card adapter. So far, the python
in bullseye
is too new for linuxcnc and while I see git commits going by, I've not
seen a
git pull go by that claims that is fixed. Perhaps one of the developers
can correct me?
On Wed, 10 Aug 2022, 1:41 pm wayne dalton, <vvega...@hotmail.com> wrote:
Howdy
My names Wayne Dalton , I’m in New Zealand .
I have these 2 units (7c80 and rpi4) and I’m working towards getting them
working correctly .
I have Linux cnc installed , I worked from new newest rpi install and then
installed Linux cnc from there rather than the Linux cnc official install …
because that came up with .. errors . I followed an install guide I found
on Linux cnc but the threed didn’t explain how exactly to do the config .
I can get the pi to ping the board in command line
( I’m not great with Linux at all btw )
So now I’m at the point of building a hal for the board .
I understand … you install a different board and then just assign all the
pins and set it to spi for communication but this is where im getting lost .
I’ve had a look on Linux cnc and there are maybe 2 posts , one of them
have a test Hal and Ini file with everything assigned but honestly I’m not
understanding how I transfer than in or even get Linux cnc to see it .
I’ve tried accessing a couple files but it just tells me I don’t have
permission …. But I’m not even sure I have the right files so that might
not be a bad thing .
Any help or insight is appreciated
The application is a converted knee mill ( kondia/Bridgeport) and I’m
working on finishing the 4th and 5th axis design .
I’m using ac servos that have step and direction capability as well as a
encoder output .
I’m currently rebuilding the machine with ballscrews and I’m hoping to
finish the electronics control in parallel while I wait on small parts to
arrive .
Using a 4g rpi4 with a 128gig sata m.2 drive
Cheers
Wayne dalton :)
Sent from my iPhone
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Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>
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