How do I enable and use the PWM function on the Radxa 3W development board?

#1

I currently have a functional requirement to use the board’s PWM to control the brightness of an LED, but I haven’t found any documentation that mentions PWM. Could you advise me on how to find this part of the documentation or how to proceed with the operation?

#2

You can use radxa-os utils rsetup to enable other functions of 40-PIN headers.