uC FM Frequency meter

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Dragon Tamer

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I wanted to make a frequency meter for my radio using a micro-controller.

I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit?

Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator)
 
Dragon Tamer said:
I wanted to make a frequency meter for my radio using a micro-controller.

I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit?
Click to expand...

You need a high impedance buffer.

Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator)
Click to expand...

11MHz isn't 'very high', and the standard PIC designs work to at least 50MHz.
 
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