At 10:30 AM 9/16/2004, William "Chops" Westfield wrote:

>On Sep 16, 2004, at 5:32 AM, Joe Jansen wrote:
>
>>So I can control precisely where the frequency wanders around?
>><sarcasm>  That's handy...  </sarcasm>
>Why, yes it is.  See the ATtiny11 for a different scheme. :-(

To be fair, the tiny11's scheme is atypical of the AVR line.
AFAIK, all the others have an Osccal register, and you can calibrate the internal osc.

>And frequency will be dependent on things like temp and supply
>voltage, which can be controlled to some extent, so the freq
>may not be as variable as the spec sheet (must) imply.

One would hope that the spec sheets always show the guaranteed limits.

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