Could you post the output of "dmesg | tail -40" so that we can see the other remoteproc related kernel messages?
Are you by any chance using pru-gcc? If yes, you would need to upgrade your kernel to 4.14.94-ti-r96 . If you are using clpru then you should be fine. Regards, Dimitar On Sunday, March 10, 2019 at 6:27:40 PM UTC+2, gw wrote: > > Hello. > I need help regarding PRU. > I tried to enable the PRU by a command below. > > *root@beaglebone:/sys/class/remoteproc/remoteproc1# echo 'start' > state > * > -bash: echo: write error: No such file or directory > > But I get above result and PRU does not start. > I also tried sudo sh -c "echo 'start' > state" but I got an I/O error. > > Please help me. > Below are related information. > > > *debian@beaglebone:~$ dmesg |grep pru* > [ 82.512558] pruss 4a300000.pruss: creating PRU cores and other child > platform devices > [ 82.531307] remoteproc remoteproc1: 4a334000.pru is available > [ 82.531436] pru-rproc 4a334000.pru: PRU rproc node > /ocp/pruss_soc_bus@4a326004/pruss@0/pru@34000 probed successfully > [ 82.539513] remoteproc remoteproc2: 4a338000.pru is available > [ 82.539647] pru-rproc 4a338000.pru: PRU rproc node > /ocp/pruss_soc_bus@4a32600 > [ 1864.134156] remoteproc remoteproc1: powering up 4a334000.pru > [ 1864.134336] remoteproc remoteproc1: Direct firmware load for > am335x-pru0-fw failed with error -2 > > *root@beaglebone:/sys/class/remoteproc/remoteproc1# sudo > /opt/scripts/tools/version.sh* > git:/opt/scripts/:[1aa73453b2c980b75e31e83dab7dd8b6696f10c7] > eeprom:[A335BNLTBWA51712EW004500] > model:[TI_AM335x_BeagleBone_Black_Wireless] > dogtag:[BeagleBoard.org Debian Image 2018-10-07] > bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot > 2018.09-00002-g0b54a51eee]:[location: dd MBR] > kernel:[4.14.71-ti-r80] > nodejs:[v6.14.4] > uboot_overlay_options:[enable_uboot_overlays=1] > uboot_overlay_options:[disable_uboot_overlay_video=1] > > uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo] > uboot_overlay_options:[enable_uboot_cape_universal=1] > pkg check: to individually upgrade run: [sudo apt install --only-upgrade > <pkg>] > pkg:[bb-cape-overlays]:[4.4.20180928.0-0rcnee0~stretch+20180928] > pkg:[bb-wl18xx-firmware]:[1.20180517-0rcnee0~stretch+20180517] > pkg:[kmod]:[23-2rcnee1~stretch+20171005] > pkg:[librobotcontrol]:[1.0.3-git20181005.0-0rcnee0~stretch+20181005] > pkg:[firmware-ti-connectivity]:[20170823-1rcnee1~stretch+20180328] > groups:[debian : debian adm kmem dialout cdrom floppy audio dip video > plugdev users systemd-journal i2c bluetooth netdev cloud9ide gpio pwm eqep > admin spi tisdk weston-launch xenomai] > cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 > root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M > net.ifnames=0 quiet] > dmesg | grep pinctrl-single > [ 1.115968] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 > size 568 > dmesg | grep gpio-of-helper > [ 1.127852] gpio-of-helper ocp:cape-universal: ready > END > > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/11689ce6-cf4a-4d81-94b4-008e740796f6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
