Hi All,
I'm starting a project where a 20MHz crystal is needed. But my circuit refused to work above 10MHz for hours.
Finally, I found the catch: I mistaken the config settings; instead of _HS_OSC I had _XT_OSC and I couldn't see it...
Now, I was wondering if there is a "simple" way to check the good operation of the crystal and how to adjust the load capacitors and serial resistor.
I have found some DS and AN from MicroChip about oscillators but before I go for a sleepless night trying to understand them, I'm just asking for a "quick" check method, if there is any.
Is there one?
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