mynameisdan
New Member
I'm getting into electronics after a few years away (and I was only really a novice then), and I thought that a simple circuit involving a PIC would be a good place to start.
So first off, I'm using a 40Mhz crystal for a PIC18F4550 and I'm wondering what value capacitors to use. I've searched and found nothing on determining the actual value of these, just that they exist.
The digital inputs are theoretically ∞ impedance, so would it matter if the voltage applied to it was slightly above the rated logic voltage and just with a current limiting resistor (12v)?
So first off, I'm using a 40Mhz crystal for a PIC18F4550 and I'm wondering what value capacitors to use. I've searched and found nothing on determining the actual value of these, just that they exist.
The digital inputs are theoretically ∞ impedance, so would it matter if the voltage applied to it was slightly above the rated logic voltage and just with a current limiting resistor (12v)?