On Sat, Jun 1, 2019 at 6:05 PM <[email protected]> wrote: > > Hello folks, > > I am trying to optimize the boot time of my system with Waveshare CAN cape. > > I got CAN1 (P24,P26) working by setting in uEnv.txt: > > uboot_overlay_addr0=/lib/firmware/BB-CAN1-00A0.dtbo > > It is also possible to use config-pin (I later noticed that this is a feature > of cape-universal) to enable CAN1 as explained in this link: > https://www.thomas-wedemeyer.de/beaglebone-canbus-python.html > > While trying to reduce boot time, I realized that disabling cape-universal > significantly reduces boot time. However when I disable it, CAN bus stops > working and I get the following error when trying to enable it: > > debian@beaglebone:~$ sudo ip link set can1 up type can bitrate 500000 > Cannot find device "can1" > > Is it possible to use the CAN interface without cape-universal? How can I > avoid unneeded hardware initialization to reduce boot time?
start over with a fresh image: https://rcn-ee.net/rootfs/bb.org/testing/2019-05-27/stretch-iot/ There has been a lot of boot-time optimization all over the image.. and you didn't state which one you are running? Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYgntyfb8%2BD0d2Pqh59xsb-RW9YxmSr86WNDN9NajnFh6w%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
