We're using PWM on the nRF52811 to generate a 3.2 MHz clock needed by one of our peripherals, using the nrf_drv_pwm library in nRF5 SDK 17.1.0. We're seeing power consumption jump up by about 1.7 mA when PWM is enabled. Questions:
* Does that sound about right for a 3.2 MHz PWM clock, or should we expect lower power consumption?
* Are we correct that a lot of that is due to EasyDMA being automatically enabled in hardware when PWM is enabled.
* Are we correct that there is not a low-power configuration for the PWM peripheral controller?
* Are we correct that it's not possible to use the PWM peripheral controller without EasyDMA?
* Are we correct that the low-power PWM library is not capable of generating frequencies this high?
* Are there any other options available for generating a 3.2 MHz clock from the nRF52811 at lower power consumption?