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I have programmed my ATtiny1616 to output the clock on a pin. Here is my reading:

Scope Reading

Why is there all that ripple? How might I reduce it?

Hackstaar
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    Possible duplicate of Cheap oscilloscope showing 16 MHz square wave. Look at the answers in that question, which explain why you see waveform shapes like yours, when all the harmonics of a high-frequency square wave cannot be displayed on a lower-bandwidth oscilloscope. (Probing technique may also be causing the displayed overshoot.) – SamGibson Sep 02 '19 at 19:47
  • The linked question definitely is informative, that said this is not a low bandwidth scope. You may be seeing transmission line effects and probe compensation, band limiting issues would be more symmetric. – Chris Stratton Sep 02 '19 at 20:21
  • @ChrisStratton How do you know this is not a "low bandwidth scope"? It looks like a Rigol DS1000Z series scope to me, which has a bandwidth of 50-100Mhz depending on model. Pretty similar to the one in the linked question. – marcelm Sep 02 '19 at 21:15
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    @SamGibson the linked question answered mine. Thx. – Hackstaar Sep 02 '19 at 23:03

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