pwm_set_wrap() function

Set the current PWM counter wrap value Set the highest value the counter will reach before returning to 0. Also known as TOP. The counter wrap value is double-buffered in hardware. This means that, when the PWM is running, a write to the counter wrap value does not take effect until after the next time the PWM slice wraps (or, in phase-correct mode, the next time the slice reaches 0). If the PWM is not running, the write is latched in immediately.