OK. Now I understand. From this discussion:
http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=1150108
They point out this library:
OK. Now I understand. From this discussion:
http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=1150108
They point out this library: