Hi, Seklom
The PWM settings for PoKeys devices offer a wide array of possibilities and may therefore seem not clear at first.
PWM works by comparing a counter (running at 25 kHz) with a predefined PWM period value and resetting to zero when the counter reaches the PWM period. This defines the frequency of the PWM signal. In PoKeys devices, this frequency is adjustable and is shared among all PWM outputs.
Besides comparing the counter with the PWM period, the counter also is compared with PWM duty cycle for each output separately. The ratio between PWM duty and PWM period is usually called PWM duty cycle and is specified in %. 100 % means the signal is on all the time, 0 % that the signal is off all the time, while the 50 % means that the signal is on for half the PWM period and off for the other half.
So, why is there option to map the PWM output to 'DRO' only and to 'DRO in %'? The first option defines the value for the PWM duty directly and user must take care that the value is in the range from 0 to the value of the PWM period. 'DRO in %' simplifies this by expecting the DRO value from 0 to 100.
Because the user has usually no control on the range of the DRO values, we introduced a multiplication factor in the latest plugin release that allows you to multiply the DRO value by a custom factor, producing a value in the range from 0 to 100 for 'DRO in %' mapping.
Regards,
Matevž