Greetings all; I have finally managed hack up a script to make an installable version of 4.19.71-rt24-v7l+ for the pi4.
Assuming it already has the full raspbian 10.2 or later image on the u-sd card, goto my site in the sig, find the lathe-stf link, click on it, find the linuxcnc4pi4b directory and download rt-kernel.tgz. Unpack it in /, reboot, and it should show a uname -a of: Linux rpi4.coyote.den 4.19.71-rt24-v7l+ #1 SMP PREEMPT RT Thu Feb 6 07:09:18 EST 2020 armv7l GNU/Linux Latency is in the 16 microseconds territory, and it runs my Sheldon lathe with all its gingerbread, and it has a bunch flawlessly with the cpu speed only pushed to 800 MHz. So the pi is figuratively loafing on the beach. :) Have fun all you pi4 fans. 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users