Atmel START is a web-based platform for configuring and distributing content, meaning device drivers, middleware and demo applications for Microchip's AVR and ARM devices. Content for AVR devices is in a framework called AVR Code, and content for ARM devices is in a framework called ASF4.
The START web interface makes configuration of drivers and applications simple so that even new users can configure a system and get a system up and running in a short time. In the initial phase of generating a project in START, the user chooses a device. START automatically selects the appropriate framework depending on the chosen device.