06-06-2018, 06:55 AM
(06-06-2018, 04:45 AM)pfeerick Wrote:(06-05-2018, 05:00 PM)gene83 Wrote: So I either need a url for the debian version, or a lot of tutoring.
Gene, I'd stick with ubuntu for a little longer to see if you can get it to play ball.
When you do get fed up, and want to try debian, go to the link evilbunny gave (https://github.com/ayufan-rock64/linux-b...tag/0.6.44) and get yourself the stretch image - stretch is the codename for debian 9
That I have done, but haven't yet put it on the u-sd. That isn't made easier by this forums sw though, as it throws away quite a few characters in the middle of a copy/pasted url. The one thing I don't care for is the total lack of a gui in the debian images, and it doesn't want to reboot clean due to a timeout in the login process. If it times out, it takes a full powerdown reboot to re-enable the login. Sometimes more than once.
I'd much prefer the debian version as at the end of this project, that is what LinuxCNC runs best on, because this is intended at some point, to replace a pi-3b running a jessie install thats running a 70 yo Sheldon 11x54" lathe I have converted to cnc.
The pi-3b is running it well, but the internal usb2 hub makes getting the code to run the lathe into its u-sd card a major PITA because it likes to throw away both local keyboard and mouse events, and its panic time when jogging the machine, and it throws away the keyup, leaving the machine running until you can pound on the keyboard or mouse to get its attention again,
One can reboot the pi and alleviate much of that, but it may take 2-5 reboots to achieve. Something is not being properly initialized every time. It also forgets the key repeat speed going to about 1000 chars a second when it kicks in.
So far, the rock64 has never exhibited this behavior. This also makes it difficult to fire up an editor and write code on the pi's usb dongle keyboard, its a heck of a lot less frustration to write the code someplace else and sshfs it back to the pi.
The interface driver will, in addition to building and installing a rt-prempt kernel, need to have some code excised that makes sure its running on a pi3b, then adapted to run the spi port at up to 25 megabaud or more. he pi is currently talking to the interface card at 41 megabaud, and getting the data stream back at 25 megabaud. The pi3b is running debian 8, aka jessie. The throw away keyboard events caused me to add a pair of 100 ppr encoder dials on the lathes new apron, which puts the jog commands into it thru the interface card and spi path, where it works flawlessly,.
So there are 2 problems to solve before I can unbolt the pi and bolt in the rock64. So today I'll burn the debian image, get the network working, and do a task install of xfce or lxde. Then find out if the adapter I bought, will put a 60GB SSD on the usb3 port, dmesg says its recognized ok. With that working then I can do kernel building on something with some speed. I have built a realtime kernel on this rock64 in under an hour, But the $50 spiinning rust drive took a dose of cyanide. All work lost as I couldn't add it to the amanda disklist, it crashed the instant the server tried to access it to do the backups. Another problem to solve.
Hopefully this will run at a greater color depth than the pi's framebuffer video does.
It seems to, I can at least see the pulldowns when running synaptic. Because anything near white is just white on the pi, pulldown menu's are very hard to see.
Once I get a realtime kernel built, I'll be back asking how to install it.
Many Thanks for the help so far.
Cheers, gene83
