Hello, can elaborate the exact steps you enabled epwmss and ehrpwm?
I followed the Overlays: BeagleBone AI-64 [PWM]. I did make menuconfig, pwm has been configured on
CONFIG_EXPERT=y
CONFIG_PWM=y
CONFIG_SYSFS=y
All I didi was I set dtb_overlay=BONE-PWM2.dtbo in uEnv.txt
Even I am pretty sure bb-symlinks was active, I enabled it anyway by:
sudo systemctl enable bb-symlinks.service
The problem is still same as in many posts in this forum: /sys/class/pwm is empty
By reading all these posts, I am still not clear what I did wrong in uEnv.txt or other steps
The follows are some of output
debian@BeagleBone:~$ config-pin p8.13 pwm
P8_13 pinmux file not found!
Pin has no cape: P8_13
Here is the output
debian@BeagleBone:~$ sudo beagle-version
eeprom:[A335BNLTEIA02016BBBK07DA]
model:[TI_AM335x_BeagleBone_Black]
dogtag:[BeagleBoard.org Debian Bookworm IoT Image 2023-10-07]
bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot SPL 2016.01-00001-g4eb802e (Jan 13 2016 - 11:14:31)]:[location: dd MBR]
bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot 2016.01-00001-g4eb802e]:[location: dd MBR]
bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot SPL 2015.10-00001-g143c9ee (Nov 06 2015 - 15:27:19)]:[location: dd MBR]
bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot 2015.10-00001-g143c9ee]:[location: dd MBR]
UBOOT: Booted Device-Tree:[am335x-boneblack.dts]
kernel:[5.10.168-ti-r77]
/boot/uEnv.txt Settings:
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[uboot_overlay_pru=PRU-GPIO-EXAMPLE-00A0.dtbo]
uboot_overlay_options:[enable_uboot_cape_universal=1]
uboot_overlay_options:[dtb_overlay=BONE-PWM2.dtbo]
pkg check: to individually upgrade run: [sudo apt install --only-upgrade ]
WARNING:pkg:[bb-cape-overlays]:[NOT_INSTALLED]
pkg:[bb-customizations]:[1.20240119.0-0~bookworm+20240119]
pkg:[bb-usb-gadgets]:[1.20240704.0-0~bookworm+20240704]
pkg:[bb-wl18xx-firmware]:[1.20230703.0-0~bookworm+20240703]
pkg:[kmod]:[30+20221128-1]
WARNING:pkg:[librobotcontrol]:[NOT_INSTALLED]
pkg:[firmware-ti-connectivity]:[20230210-5]
groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal input render netdev i2c bluetooth gpio admin tisdk weston-launch cloud9ide]
cmdline:[console=ttyo0 console=ttyS0,115200n8 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet echo /sd2/boot/uEnv.txt*]
dmesg | grep remote
[ 5.377161] remoteproc remoteproc0: wkup_m3 is available
[ 21.192437] systemd[1]: Reached target remote-fs.target - Remote File Systems.
[ 48.986297] remoteproc remoteproc0: powering up wkup_m3
[ 48.986340] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217148
[ 48.986652] remoteproc remoteproc0: remote processor wkup_m3 is now up
[ 60.886292] remoteproc remoteproc1: 4a334000.pru is available
[ 60.903679] remoteproc remoteproc2: 4a338000.pru is available
dmesg | grep pru
[ 60.886292] remoteproc remoteproc1: 4a334000.pru is available
[ 60.903679] remoteproc remoteproc2: 4a338000.pru is available
dmesg | grep pinctrl-single
[ 5.065961] pinctrl-single 44e10800.pinmux: 142 pins, size 568
dmesg | grep gpio-of-helper
dmesg | grep wlcore
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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