I need to use P8_27 and P8_28 as pruout and pruin with PRU0 on a BeagleBone Black Wireless. I’ve disabled the video and audio in uEnv.txt. I’m writing in C. I am running 4.19.94-ti-r68
I could swear I had a simple C program working that would take P8_27 high and low but today I can’t make it work. When I read the documentation, I’m now concerned that P8_27 and P8_28 aren’t accessible by PRU0. Is this true? If PRU0 can access and use them, what should I check for that’s keeping these from working? I’ve run config-pin to set them properly and when I run config-pin -q on them I get the correct setting for each one.
The output of version.sh is below.
git:/opt/scripts/:[e4e4854ef8ff9ada5c85553376043ee7679167ca]
eeprom:[A335BNLTBWA51721EW002258]
model:[TI_AM335x_BeagleBone_Black_Wireless]
dogtag:[BeagleBoard.org Debian Buster IoT Image 2021-02-15]
bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot SPL 2019.04-00002-gc9b3922522 (Aug 24 2020 - 16:42:18 -0500)]:[location: dd MBR]
bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot 2019.04-00002-gc9b3922522]:[location: dd MBR]
UBOOT: Booted Device-Tree:[am335x-boneblack-uboot-univ.dts]
UBOOT: Loaded Overlay:[AM335X-PRU-RPROC-4-19-TI-00A0.kernel]
UBOOT: Loaded Overlay:[BB-ADC-00A0.kernel]
UBOOT: Loaded Overlay:[BB-BBBW-WL1835-00A0.kernel]
UBOOT: Loaded Overlay:[BB-BONE-eMMC1-01-00A0.kernel]
kernel:[4.19.94-ti-r68]
nodejs:[v10.23.1]
/boot/uEnv.txt Settings:
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[disable_uboot_overlay_video=1]
uboot_overlay_options:[disable_uboot_overlay_audio=1]
uboot_overlay_options:[uboot_overlay_pru=AM335X-PRU-RPROC-4-19-TI-00A0.dtbo]
uboot_overlay_options:[enable_uboot_cape_universal=1]
pkg check: to individually upgrade run: [sudo apt install --only-upgrade ]
pkg:[bb-cape-overlays]:[4.14.20210809.0-0~buster+20210816]
pkg:[bb-customizations]:[1.20210810.1-0~buster+20210810]
pkg:[bb-usb-gadgets]:[1.20200504.0-0~buster+20200504]
pkg:[bb-wl18xx-firmware]:[1.20200813.1-0~buster+20200813]
pkg:[kmod]:[26-1]
pkg:[librobotcontrol]:[1.0.5-git20200715.0-0~buster+20200716]
pkg:[firmware-ti-connectivity]:[20190717-2rcnee1~buster+20200305]
groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal input bluetooth netdev i2c gpio admin spi iio docker tisdk weston-launch xenomai cloud9ide pwm eqep remoteproc]
cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet]
dmesg | grep remote
[ 56.039727] Bluetooth: hci0: change remote baud rate command in firmware
[ 74.269378] remoteproc remoteproc0: wkup_m3 is available
[ 74.416726] remoteproc remoteproc0: powering up wkup_m3
[ 74.416761] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217148
[ 74.417045] remoteproc remoteproc0: remote processor wkup_m3 is now up
[ 77.639899] remoteproc remoteproc1: 4a334000.pru is available
[ 77.655755] remoteproc remoteproc2: 4a338000.pru is available
[ 133.470659] remoteproc remoteproc1: powering up 4a334000.pru
[ 133.471162] remoteproc remoteproc1: Booting fw image am335x-pru0-fw, size 82204
[ 133.494119] remoteproc remoteproc1: registered virtio0 (type 7)
[ 133.494141] remoteproc remoteproc1: remote processor 4a334000.pru is now up
[ 539.070203] remoteproc remoteproc2: powering up 4a338000.pru
[ 539.070700] remoteproc remoteproc2: Booting fw image am335x-pru1-fw, size 82204
[ 539.121946] remoteproc remoteproc2: Failed to process post-loading resources: -17
[ 539.145918] remoteproc remoteproc2: Boot failed: -17
[ 747.238325] remoteproc remoteproc2: powering up 4a338000.pru
[ 747.238878] remoteproc remoteproc2: Booting fw image am335x-pru1-fw, size 82204
[ 747.289417] remoteproc remoteproc2: Failed to process post-loading resources: -17
[ 747.310175] remoteproc remoteproc2: Boot failed: -17
dmesg | grep pru
[ 77.639899] remoteproc remoteproc1: 4a334000.pru is available
[ 77.640125] pru-rproc 4a334000.pru: PRU rproc node pru@4a334000 probed successfully
[ 77.655755] remoteproc remoteproc2: 4a338000.pru is available
[ 77.655952] pru-rproc 4a338000.pru: PRU rproc node pru@4a338000 probed successfully
[ 133.470659] remoteproc remoteproc1: powering up 4a334000.pru
[ 133.471162] remoteproc remoteproc1: Booting fw image am335x-pru0-fw, size 82204
[ 133.480760] pruss 4a300000.pruss: configured system_events[63-0] = 00000000,00030000
[ 133.480782] pruss 4a300000.pruss: configured intr_channels = 0x00000005 host_intr = 0x00000005
[ 133.494141] remoteproc remoteproc1: remote processor 4a334000.pru is now up
[ 133.595611] virtio_rpmsg_bus virtio0: creating channel rpmsg-pru addr 0x1e
[ 133.680884] rpmsg_pru virtio0.rpmsg-pru.-1.30: new rpmsg_pru device: /dev/rpmsg_pru30
[ 539.070203] remoteproc remoteproc2: powering up 4a338000.pru
[ 539.070700] remoteproc remoteproc2: Booting fw image am335x-pru1-fw, size 82204
[ 539.076358] pruss 4a300000.pruss: event 16 (req. channel 2) already assigned to channel 2
[ 539.103860] pru-rproc 4a338000.pru: failed to configure pruss intc -17
[ 747.238325] remoteproc remoteproc2: powering up 4a338000.pru
[ 747.238878] remoteproc remoteproc2: Booting fw image am335x-pru1-fw, size 82204
[ 747.239872] pruss 4a300000.pruss: event 16 (req. channel 2) already assigned to channel 2
[ 747.269515] pru-rproc 4a338000.pru: failed to configure pruss intc -17
dmesg | grep pinctrl-single
[ 1.026713] pinctrl-single 44e10800.pinmux: 142 pins, size 568
dmesg | grep gpio-of-helper
[ 1.039958] gpio-of-helper ocp:cape-universal: ready
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
END