I'm new to Arduino (Atmel) always used Pics (Microchip), there are a few posts on this matter but can't seem to link the info to what I want to do.
I am using Arduino IDE 1.6.7. I have an ATMega328P. I have an Arduino ISP.
I'm not interested in programming the bootloader, I want to just program my sketch onto the ATMega328P and use the internal 8MHz clock.
From what I have read I need to change the fuses but the UNO settings in the boards.txt for IDE 1.6.7 looks different to what I have seen in other peoples explanations. Is there a definition needed at the head of the program to tell the compiler the crystal speed?
Any help would be greatly appreciated.