Has anyone ever used the PWM port to generate audio tones in a sine=20 wave? Looking to generate a sine wave of between 600 and 2500 Hz with=20 settable frequency. Looking for how to do this on a 18F4550. Thanks, Joe M. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .