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searching where my jitter comes

Posted: Mon Apr 04, 2022 2:16 pm
by chentron
after building the v3 inverter of johu, it is time to test and I found a big jitter (well really not me but a friend that is helping to me).
We found that the real-time clock oscillator, the 32.768 kHz oscillator of the olimex is 0 hz... so my question is if this is working as long as it has power?

Re: searching where my jitter comes

Posted: Mon Apr 04, 2022 3:21 pm
by johu
Not 100% what you built, but the RTC oscillator is never used in any software

Re: searching where my jitter comes

Posted: Mon Apr 04, 2022 3:51 pm
by chentron
sorry, i mean V2 openinverter board
We keep searching the jitter origin.

Re: searching where my jitter comes

Posted: Mon Apr 04, 2022 4:52 pm
by johu
I see. Well there is a 32 kHz crystal on there but it won't swing, as it's not activated by software.