You can reduce the max. power of each heater.
With the max_pwm value between 1 and 100% you reduce the active pwm.
For example you could reduce the power of your hotend.
My hotend for example is 12V 30W but connected to 24V. So it has
normally 120W. This is very huge. Setting the max_pwm to 25, it has
again ~30W.
Implemented and tested for both platforms. This is quite a big
commit. Unlike with the previous changes to now choosable PWM
frequencies, all board configuration files and Configtool had
to be changed immediately to deal with the additional parameter
in DEFINE_HEATER() and keep AVR builds working (and regression
tests passing).
That is, buttons and choices. Coices apparently don't work. Tried
a bit on the table heaters of the sensor and heater lists, but
found nothing which would result in an effect. This control is
not exactly well documented.