AVRstudio是ATmel公司为AVR单片机开发的免费软件，用于汇编程序的编译和下载，仿真调试和程序烧写。

可以结合ICCAVR，IAR AVR，GCCAVR ，CVAVR 等来实现C语言的仿真调试。

AVR Studio 4 is the Integrated Development Environment (IDE) for developing 8-bit AVR applications in Windows NT/2000/XP/Vista/7 environments.

AVR Studio 4 provides a complete set of features including debugger supporting run control including source and instruction-level stepping and breakpoints; registers, memory and I/O views; and target configuration and management as well as full programming support for standalone programmers.

AVR Studio 4 features

• Integrated Assembler
• Integrated Simulator
• Integrates with GCC compiler plug-in
• Support for all Atmel tools that support the 8-bit AVR architecture, including the AVR ONE!, JTAGICE mkI, JTAGICE mkII, AVR Dragon, AVRISP, AVR ISPmkII, AVR Butterfly, STK500 and STK600
• AVR RTOS plug-in support
• support for AT90PWM1 and ATtiny40
• Command Line Interface tools updated with TPI support
• Online help