I’m trying to get PWM up and running on my Beaglebone Black following the example of beagleboneblack - PWM on BeagleBone Black (v4.14) - Stack Overflow
beagleboneblack - PWM chip to pin mapping on BeagleBone Black (v4.14) - Stack Overflow
When I try to
export 0 > /sys/class/pwm/pwmchip0/export or any other pwmchip, I get
-bash: echo: write error: Device or resource busy . What am I doing wrong?
I don’t have an SD card so can’t flash the latest image, but my board is running Debian 10. If there’s a way to check exactly which image, I’ll be happy to check that.