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PWM signal prescaler

Question asked by yedes.mehdi on Oct 12, 2013
Latest reply on Oct 12, 2013 by Clive One
Hello, in fact I've been working on the STM32F3 Discovery Board and I could generate a PWM signal. But there is still something I couldn't understand, which is how to calculate the prescaler value according to the period value to make the variations of the PWM signal generated "smooth".
I had no success in finding a right answer elsewhere.
Thanks in advance