For Firmware develepment, the most suitable IDE is Atmel Studio 7 or newer. This enviroment includes the AVR Toolchain
for developing the firmware in C/C++ or assembly code. You can download Atmel Studio form the official Atmel page.
Atmel Studio Webpage
The Embedded platform is delivered with pre-programmed bootloader that is compatible with Atmel's Flip programmer. The provided bootloader could
be also downloaded from the Firmware page. You can download Atmel's Flip form the official Atmel page.
Atmel's Flip Webpage