I want to make a jitter measurement for the PWM output of this STM32F302R8 Nucelo board. Its datasheet is given here. By jitter I mean the histogram of pulse periods which shows how the periods vary from the mean.
If I'm not wrong, there's no jitter spec in these documents. So, in my case I will generate a pulse train of 1024 pulses, where each pulse period is 655 μs.
If I'm asked to quantify jitter in this case, is there a rule of thumb how many pulses is enough to quantify the jitter? (If I take too many pulses I cannot sample the rising edges fast enough)