Weird Oscillator Problems

[Mike, K8LH]

'Kid,

I've seen similar symptoms with LVP enabled in the configuration fuses and the PGM pin left floating...

Regards, Mike

[Ron Marcus]

You might be overdriving the crystal when set up properly. In the Microchip books, they talk about putting a resistor between Osc2 pin and the crystal. Unless it is a specially cut crystal, or your Uncle owns the crystal company, find one that works reliably.

Hope this helps,
Ron