А WinAVR чем не устраивает
20081205 последняя версия
Цитата
Release Name: 20081205
Notes:
Below is just a sample of what's new.
- New version of GNU Binutils: 2.19
- New version of GCC: 4.3.2
- New version of AVR-LibC: 1.6.4
- New version of Programmers Notepad: 2.0.8.718
- New devices supported:
* ATxmega64A3
* ATxmega128A3
* ATxmega256A3
* ATxmega256A3B
* ATmega32U6
- Various bugs fixed.