Hi,
i've successfully programmed (and bootloaded) an ATMega328 using and Arduino2009 as ISP; the bootload and upload of sketch processes terminate correctly; then i substitute an Arduino Nano that i have in one of my projects with the standalone 328 (mapping all pins the the Nano ones and using a 16Mhz clock with the two 22pF capacitors, and all works well, except that external eeprom operations (24LC512) do not seem to work right....
the question is: to use an ATMega standalone (in place of an Arduino, in my case the Nano) is it not sufficient to place a crystal and map MCu pins to the Arduino ? Are more components needed, or do i need to ground unused pins, etc ? In my project i use 6 digital pins (for output) and 3 analog pins (for input).
Thanks very much in advance