You need and ISP. Then you can change them with avr studio or with avrdude from the commandline. In the second case google for "avr fuse calculator". With regard to the meaning of the fuses: the definite guide is the datasheet.
You need and ISP. Then you can change them with avr studio or with avrdude from the commandline. In the second case google for "avr fuse calculator". With regard to the meaning of the fuses: the definite guide is the datasheet.