Using Mr. E-Calc, I wanted to calculate values for a PWM frequency using LFINTOSC, which is 32 kHz. I entered 0.031 where it asks for Fosc (MHz) and wouldn't you know it, IT WORKED! Got me thinking about the NCO Calc. I had limited Fosc to 1 MHz on the low end. This updated Version 1.02 lowered the minimum to 1 kHz (0.001 in the Fosc box).

Nco Calc1_02.zip