ARM Development Studio 5 (DS-5) is available now for free for qualified universities! DS-5 makes it easy to develop applications for ARM applications processors. It reduces your learning curve, shortens the development and testing cycle, and helps you build reliable applications quickly.
ARM/Keil Microcontroller Development Kit (MDK-ARM) is available now for free for qualified universities! It features the industry-standard compiler from ARM, the Keil µVision IDE, and sophisticated debug and data trace capabilities. MDK-ARM offers tailored support for all Cortex-M processor-based devices, and is the recommended solution for students working with standard ARM-based MCU devices. We suggest that students and universities download the free evaluation version of the tools, which offers all the features of the standard version, but with a 32K byte object code/data limit.