I've finally got myself a virgin ATMega328p and without uploading a bootloader, I've uploaded a simple variation of Blink and thought it was broken until I realised that because I hadn't set the fuses, the MCU was just using internal clock and running at 1MHz intead of 16MHz (I've included a crystal…

Standard Fuse Settings for 16Mhz ATMega328p

system June 23, 2012, 11:34pm 5

Hi,

These setting did it for me too... 16mhz atmega328p.

lfuse = 0xff
hfuse = 0xde
efuse = 0x05

Thanks.