Tom=E1s =D3 h=C9ilidhe wrote:
> I know about RC circuits, about the time constant, about exponential
> decay and all that. What I don't know is how the RC values actually
> yield a specific processor speed. I just need an equation, something
> like:
>
>     Processor Speed =3D 7.56 * Time Constant

If anything it would have to be more the inverse of that.  Think about it.
Longer time constants are going to slow things down, not speed them up.

In any case, there will be a lot of variation and the RC oscillator is not
meant for high speed operation, if it will work at all at the maximum
processor frequency.

> And then my next question would be what capacitor value I should use,
> given that I can have a really small one with a really big resistance,
> or a really big one with a really small resistance.

No, to make higher speeds you will need both smaller resitor and capacitor.

Still, you don't want to use RC for your purpose.


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