Thanks for the feedback Henrik.

The PCPWM frequency is 8kHz and I would like to be able to slow the motor down to 60rpm (1 revolution per second) if possible. This would allow me to perform threading operations on my lathe at a safe speed (the ultimate use for this project is to re-power my 9x20 lathe).

I also need a way of determining and displaying the rotational speed. I know this is possible by manipulating the data from the counter/timer but would it be simpler to use the period measurement function (input capture mode) of the Motion Feedback Module on the 18F2431? Have you, or any of the other forum members, had any experience using the period measurement function?

Cheers
Barry
VK2XBP