I'll get this one onto an SD card and give it a try. If I can just get this configured I think I can make quick work of this problem!
On Wednesday, February 17, 2021 at 3:47:04 PM UTC-5 Mark A. Yoder wrote: > Good point, it should work.... I'm running a newer test image[1], but I > took my Beagle home so I can't do a quick check on it until later. > > > --Mark > [1] > https://rcn-ee.com/rootfs/bb.org/testing/2021-02-15/buster-iot/bone-debian-10.8-iot-armhf-2021-02-15-4gb.img.xz > > > On Wednesday, February 17, 2021 at 2:46:35 PM UTC-5 > [email protected] wrote: > >> I asked because the ones on the page @ the link are older than the one I >> have installed. >> >> >> On Wednesday, February 17, 2021 at 2:30:58 PM UTC-5 Mark A. Yoder wrote: >> >>> On newer versions of the SD card image /var/lib/cloud9 is a git repo >>> which you can do a git pull to update. Your version is too old. >>> >>> Follow the instructions at: >>> https://markayoder.github.io/PRUCookbook/02start/start.html#_installing_the_latest_os_on_your_bone >>> >>> to download and install an updated version of the SD card image. >>> >>> --Mark >>> >>> On Wednesday, February 17, 2021 at 2:25:40 PM UTC-5 >>> [email protected] wrote: >>> >>>> Mark, >>>> >>>> git pull on /var/lib/cloud9 fails with 'fatal: Not a git repository (or >>>> any of the parent directories): .git >>>> >>>> I'm such a neophyte on git. What do I need to do? >>>> >>>> And, what do you mean by updating to a new version of the SD card? The >>>> OS is booting from the SD card and the version.sh information posted >>>> earlier is based on that. >>>> >>>> >>>> On Wednesday, February 17, 2021 at 2:02:55 PM UTC-5 Mark A. Yoder wrote: >>>> >>>>> I suggest updating to a new version of the SD card. It looks like the >>>>> PRUs are getting started at boot time, but the path isn't setup right. I >>>>> think we setup some links so the path* /dev/remoteproc/pruss-core0/state >>>>> *points to the right place. >>>>> >>>>> You could also try: >>>>> *cd */var/lib/cloud9 >>>>> *git* pull >>>>> to update cloud9 folders. >>>>> >>>>> --Mark >>>>> >>>>> On Wednesday, February 17, 2021 at 1:53:35 PM UTC-5 >>>>> [email protected] wrote: >>>>> >>>>>> Mark, >>>>>> >>>>>> I got the latest PRUCookbook downloaded and when trying to make the >>>>>> hello.pru0.c program in 1.6, I got this error. >>>>>> >>>>>> *debian@beaglebone:/var/lib/cloud9/PRUCookbook/docs/02start/code$ >>>>>> make TARGET=hello.pru0* >>>>>> */var/lib/cloud9/common/Makefile:29: >>>>>> MODEL=TI_AM335x_BeagleBone_Black,TARGET=hello.pru0* >>>>>> *- Stopping PRU 0* >>>>>> */bin/sh: 1: cannot create /dev/remoteproc/pruss-core0/state: >>>>>> Directory nonexistent* >>>>>> *Cannot stop 0* >>>>>> *CC hello.pru0.c* >>>>>> *"/var/lib/cloud9/common/prugpio.h", line 53: warning #1181-D: >>>>>> #warning directive: "Found am335x"* >>>>>> *LD /tmp/cloud9-examples/hello.pru0.o* >>>>>> *- copying firmware file /tmp/cloud9-examples/hello.pru0.out to >>>>>> /lib/firmware/am335x-pru0-fw* >>>>>> *cp: cannot create regular file '/lib/firmware/am335x-pru0-fw': >>>>>> Permission denied* >>>>>> */var/lib/cloud9/common/Makefile:180: recipe for target 'install' >>>>>> failed* >>>>>> *make: *** [install] Error 1* >>>>>> *rm /tmp/cloud9-examples/hello.pru0.o* >>>>>> >>>>>> Initially, I did not have a folder called /var/lib/cloud9/common. >>>>>> To remedy this I copied the contents of >>>>>> /var/lib/cloud9/PRUCookbook/docs/common to /var/lib/cloud9/common. >>>>>> Maybe >>>>>> this created a problem?Nevertheless, I found some other discussions >>>>>> that >>>>>> suggested updating the scripts and kernels from >>>>>> beagleboard.org/upgrade which I did. I am now running... >>>>>> >>>>>> Linux beaglebone 4.14.108-ti-r137 #1stretch SMP PREEMPT Tue Aug 25 >>>>>> 01:48:39 UTC 2020 armv7l GNU/Linux >>>>>> >>>>>> And the output of version.sh is >>>>>> >>>>>> *debian@beaglebone:/$ sudo opt/scripts/tools/version.sh* >>>>>> *[sudo] password for debian:* >>>>>> *git:/opt/scripts/:[e4e4854ef8ff9ada5c85553376043ee7679167ca]* >>>>>> *eeprom:[A335BNLT00C04417BBBK1847]* >>>>>> *model:[TI_AM335x_BeagleBone_Black]* >>>>>> *dogtag:[BeagleBoard.org Debian Image 2018-10-07]* >>>>>> *bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot SPL >>>>>> 2018.09-00002-g0b54a51eee (Sep 10 2018 - 19:41:39 -0500)]:[location: dd >>>>>> MBR]* >>>>>> *bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot >>>>>> 2018.09-00002-g0b54a51eee]:[location: dd MBR]* >>>>>> *bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot SPL >>>>>> 2018.03-00002-gac9cce7c6a (Apr 05 2018 - 13:07:46 -0500)]:[location: dd >>>>>> MBR]* >>>>>> *bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot >>>>>> 2018.03-00002-gac9cce7c6a]:[location: dd MBR]* >>>>>> *UBOOT: Booted Device-Tree:[am335x-boneblack-uboot-univ.dts]* >>>>>> *kernel:[4.14.108-ti-r137]* >>>>>> *nodejs:[v6.14.4]* >>>>>> */boot/uEnv.txt Settings:* >>>>>> *uboot_overlay_options:[enable_uboot_overlays=1]* >>>>>> >>>>>> *uboot_overlay_options:[uboot_overlay_addr0=/lib/firmware/BB-W1-P9.12-00A0.dtbo]* >>>>>> *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-customizations]:[1.20180815-0rcnee0~stretch+20180815]* >>>>>> *WARNING:pkg:[bb-usb-gadgets]:[NOT_INSTALLED]* >>>>>> *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/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M >>>>>> net.ifnames=0 quiet]* >>>>>> *dmesg | grep remote* >>>>>> *[ 1.147260] remoteproc remoteproc0: wkup_m3 is available* >>>>>> *[ 1.231303] remoteproc remoteproc0: powering up wkup_m3* >>>>>> *[ 1.231426] remoteproc remoteproc0: Booting fw image >>>>>> am335x-pm-firmware.elf, size 217168* >>>>>> *[ 1.233981] remoteproc remoteproc0: remote processor wkup_m3 is >>>>>> now up* >>>>>> *[ 108.634522] remoteproc remoteproc1: 4a334000.pru is available* >>>>>> *[ 108.656634] remoteproc remoteproc2: 4a338000.pru is available* >>>>>> *dmesg | grep pru* >>>>>> *[ 108.019424] pruss 4a300000.pruss: creating PRU cores and other >>>>>> child platform devices* >>>>>> *[ 108.634522] remoteproc remoteproc1: 4a334000.pru is available* >>>>>> *[ 108.634642] pru-rproc 4a334000.pru: PRU rproc node >>>>>> /ocp/pruss_soc_bus@4a326004/pruss@0/pru@34000 probed successfully* >>>>>> *[ 108.656634] remoteproc remoteproc2: 4a338000.pru is available* >>>>>> *[ 108.656808] pru-rproc 4a338000.pru: PRU rproc node >>>>>> /ocp/pruss_soc_bus@4a326004/pruss@0/pru@38000 probed successfully* >>>>>> *dmesg | grep pinctrl-single* >>>>>> *[ 0.783913] pinctrl-single 44e10800.pinmux: 142 pins at pa >>>>>> f9e10800 size 568* >>>>>> *dmesg | grep gpio-of-helper* >>>>>> *[ 0.796624] gpio-of-helper ocp:cape-universal: ready* >>>>>> *lsusb* >>>>>> *Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub* >>>>>> *END* >>>>>> >>>>>> Any ideas? >>>>>> >>>>>> On Wednesday, February 17, 2021 at 10:10:53 AM UTC-5 Mark A. Yoder >>>>>> wrote: >>>>>> >>>>>>> The PRUs can give you 10's of ns timing, which is more than good >>>>>>> enough for milliseconds, but might be over kill. >>>>>>> >>>>>>> I'd think using C on the ARM processor should be fast enough. I'd >>>>>>> use gpiod[1]. >>>>>>> >>>>>>> If you really want the ns timing of the PRUs, check out the PRU >>>>>>> Cookbook[2] >>>>>>> >>>>>>> --Mark >>>>>>> >>>>>>> [1] https://github.com/starnight/libgpiod-example >>>>>>> [2] https://github.com/MarkAYoder/PRUCookbook >>>>>>> >>>>>>> On Tuesday, February 16, 2021 at 10:51:11 AM UTC-5 >>>>>>> [email protected] wrote: >>>>>>> >>>>>>>> Depending on how precise you need to be, I would go for the >>>>>>>> PRU-ICSS. They can control the GPIOs pretty easily. >>>>>>>> >>>>>>>> Le mardi 16 février 2021 à 10:03:47 UTC-5, >>>>>>>> [email protected] a écrit : >>>>>>>> >>>>>>>>> I have a BBB Wireless running Linux beaglebone 4.14.108-ti-r106 #1 >>>>>>>>> SMP PREEMPT Fri May 24 22:12:34 UTC 2019 armv7l GNU/Linux >>>>>>>>> >>>>>>>>> I am writing in C. >>>>>>>>> >>>>>>>>> I turn a valve on and then need to read some sensors for N >>>>>>>>> milliseconds and then turn the valve off. >>>>>>>>> >>>>>>>>> What's the best way to read milliseconds on the BBBw? I don't >>>>>>>>> have a RTC on this particular unit but could add one using I2C. I >>>>>>>>> have an >>>>>>>>> Adafruit 4282 with a DS3231 RTC on it on another BBBw that I could >>>>>>>>> use >>>>>>>>> temporarily to prove it works. What other options are available? >>>>>>>>> >>>>>>>>> >>>>>>>>> -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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