On the analogwrite syntax page, the text says not to bother setting a pinmode when using (because it's a timer function). The following example, bigger than life, then sets a pinmode in that very ...

This example uses arduino style programming for PWM generation. Timer 1 interrupt is used for PWM generation. To stop PWM, call function "clear_analogWrite()". PWM pin map: analogWrite39(PWM_VALUE [0 ...