Using the fuse calc at AVR® Fuse Calculator – The Engbedded Blog I am setting up with the following settings, and then changing in the board.txt:
Ext. Full swing. 16k CK/14CK+65ms [CKSEL=0111 SUT=11]
Enable SPI.
This gives me back:
-U lfuse:w:0xf7:m -U hfuse:w:0xd9:m -U efuse:w:0xff:m
I've also tried:
-U lfuse:w:0xe0:m -U hfuse:w:0xd9:m -U efuse:w:0xff:m
Aswell as checking and unchecking the [CKDIV8=0] selection.
I've read that the 328p and 328p-au are different.
Where am I going wrong?
Any help would be much appreciated!