I'm completely new to MCU programming. I have an ATmega168 and a 20 MHz oscillator. My question is, how can I "tell" the controller to use this oscillator? I tried to read the datasheet, but that didn't help a lot!
My guess is that I should set the "fuse bits"!
Is it possible that I use this oscillator and run the controller with a lower frequency say 16 MHz?
By the way, I'm using Atmel Studio 6 to program this.
UPDATE
After dextorb's comment, I've uploaded this image:
In the datasheet Table9-5 they say that for a 20MHz frequency range CKSEL3..1 should be 011! Where can I put this value and after setting it, does it mean that I'm good to go with 20 MHz?
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