TsctlEDIOPWMDesc
From embeddedTS Manuals
Set the given DIO to begin producing PWM of the specified parameters on the given DIO num. The periodHigh and periodLow are specified in nanoseconds. If the specific DIO does not support the specified high/low period, priority will be given to setting a duty cycle as close to that implied by periodHigh / (periodHigh + periodLow), using the closest supported frequency.