Step 0 : I use http://www.engbedded.com/fusecalc/. I have a large choice of 128 KHz with "6CK/14CK + 0ms" or "6CK/14CK + 4.1ms"... What doest i mean ?
Step 1 : I have already an abrduino uno. May it possible to use it as an ISP ?. Yes, I know that "Currently, you cannot use an Arduino Uno as an ISP programmer because the optiboot bootloader does not support this sketch. A revision for this is in progress. " according to http://arduino.cc/en/Tutorial/ArduinoISP.
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