VF50 PWM pin is not generating frequency less than 500Hz

VF50 PWM pin is not generating frequency less than 500Hz. But it is shown in the below link that we can generate frequency from 7.86Hz to 66MHz :- How to use PWM Library.
Can you please explain that why it is not able to generate PWM with 50 % duty cycle below 500 Hz?

Dear @Mania

It seems you have configured the baseFreq parameter to 33 MHz.

The VF50 has the limitation that the achieveable range of output frequencies is ( baseFreq / 65536) to ( baseFreq ). For baseFreq= 33MHz, this is 500Hz to 33MHz.

Regards, Andy

Dear @andy
I have configured the baseFreq parameter to 20 MHz and duty cycle parameter to 32768.

Dear @Mania
So simply calculate (20MHz / 65536) to get the minimum achievable PWM frequency.
Regards, Andy

Dear @andy
Thanks, Its 300Hz.
Can I change the baseFreq parameter according to desired minimum frequency in provided range?

Dear @Mania
Yes. Please refer to the .chm help file which comes as part of the library download package.
Regards, Andy

Dear @andy
Thank You so much. I got the exact frequency by varying the baseFreq.