This section provides a guide for using open source tools such as WinAVR Compiler, Eclipse IDE and AVR Eclipse Plugin for ATMEL AVR development.

- Install WinAVR20080610. Can download from http://winavr.sourceforge.net/download.html , How to fix a problem of USBasp with WinAVR20080610 http://www.friendlyarm.com/fixed-a-problem-usbasp-in-winavr20080610/

- Install Eclipse 3.4 Ganymede by select Eclipse IDE for C/C++ Developers papckage, included CDT 5.0 (Eclipse’s C/C++ Development Tooling) in the package. When download complete. unzip to your install drive such as C:\eclipse , open eclipse program and select Workbench icon (only first time).

ATMEL AVR Eclipse Plugin

- Install AVR Eclipse Plugin by go to menu Help / Software Updates, when open a new window select Available Software, and press Add Site… button. add http://avr-eclipse.sourceforge.net/updatesite in Location: and press OK

ATMEL AVR Eclipse Plugin

Select AVR Eclipse Plugin and press install… button, the update will be start.

ATMEL AVR Eclipse Plugin

The next window review and confirm the package will be install, press Finish

ATMEL AVR Eclipse Plugin

Later the update process will restart Eclipse, press Yes. Now you have installed the AVR Eclipse plugin :)

ATMEL AVR Eclipse Plugin

Enjoy! Now you have open source IDE and C Compiler on Windows OS. Next step i will show how to configure the AVR Project on Eclipse IDE.