PATCH v3 22 pwm. PWM Timer PTMR Clock period TCY 11 prescaler used. Software Pwm Led Dimming Pic Mcu Software Pwm C Code Library To determine the proportional PWM output voltage use this formula. . To generate the desire PWM frequency and duty cycle using CCU4 CCU8 we need to program the correct count value into the Timer Period Value register and Compare Value register. The pulse width and period of the PWM wave can be calculated by recording the counter value of the signal along the changing moment so as to calculate the duty cycle. If a 11 prescaler is selected for PWM clock for each timer clock tick there are two duty cycle clock ticks. The PDCx ranges from 0 to 9992 where 0 is 0 and 9992 is 100. How Is Pwm Duty Cycle Calculated. Duty cycle clock period TCY2. To calculate the corresponding output voltage use this. Therefore the duty cycle is 515. Thu Aug 15 2019 - 053420 EST Next message. ...