I have some doubts about ATmega128's clock speed I'd much appreciate comments on them.
First of all, is there any difference between ATmega128 and ATmega128L? I mean, by reading the datasheet it seems that
atmega128L runs up to 8MHz, while ATmega128 runs up to 16MHz. Is this conclusion right?
Besides, to specify clock speed the only thing I need is to set up properly the option "-DF_CPU"?
Lastly, is it possible to change clock speed at running time? I mean,
i wanna, e.g., change the clock speed from 4MHz to 8MHz after a couple of operations have been carried out.
Thx so much in advance
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