Hello together,
at the moment, I have some trouble getting the PWM to work at the BB blue. I have a sd card with the debian 11.5 minimal image. when the bb black boots from this sd card, it seems like the pwm chips are just fine
debian@BeagleBone:/sys/class/pwm$ ls -lah
total 0
drwxr-xr-x 2 root root 0 Jan 1 2000 .
drwxr-xr-x 67 root root 0 Jan 1 2000 ..
lrwxrwxrwx 1 root root 0 Jan 1 2000 pwmchip0 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48300000.target-module/48300000.epwmss/48300100.pwm/pwm/pwmchip0
lrwxrwxrwx 1 root root 0 Jan 1 2000 pwmchip1 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48302000.target-module/48302000.epwmss/48302100.pwm/pwm/pwmchip1
lrwxrwxrwx 1 root root 0 Jan 1 2000 pwmchip2 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48304000.target-module/48304000.epwmss/48304100.pwm/pwm/pwmchip2
lrwxrwxrwx 1 root root 0 Jan 1 2000 pwmchip3 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48300000.target-module/48300000.epwmss/48300200.pwm/pwm/pwmchip3
lrwxrwxrwx 1 root root 0 Jan 1 2000 pwmchip5 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48302000.target-module/48302000.epwmss/48302200.pwm/pwm/pwmchip5
lrwxrwxrwx 1 root root 0 Jan 1 2000 pwmchip7 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48304000.target-module/48304000.epwmss/48304200.pwm/pwm/pwmchip7
debian@BeagleBone:/sys/class/pwm$ cd /dev/bone/pwm/
debian@BeagleBone:/dev/bone/pwm$ ls -lah
total 0
drwxr-xr-x 5 root root 100 May 29 06:12 .
drwxr-xr-x 8 root root 160 May 29 06:12 ..
drwxr-xr-x 2 root root 80 May 29 06:12 0
drwxr-xr-x 2 root root 80 May 29 06:12 1
drwxr-xr-x 2 root root 80 May 29 06:12 2
but the same image on the bb blue results in
debian@BeagleBone:/sys/class/pwm$ ls -lah
total 0
drwxr-xr-x 2 root root 0 Jan 1 2000 .
drwxr-xr-x 67 root root 0 Jan 1 2000 ..
debian@BeagleBone:/sys/class/pwm$ cd /dev/bone/pwm/
debian@BeagleBone:/dev/bone/pwm$ ls -lah
total 0
drwxr-xr-x 2 root root 40 May 29 06:12 .
drwxr-xr-x 6 root root 120 May 29 06:12 ..
Does anyone have an idea about that?
thanks and best regards