KEIL MDK-ARM Microcontroller Development Kit, Essential Version, Two Seat, Floating License.
MDK-Essential is the full-featured software development suite for ARM®-based microcontrollers. It features software development for:
In combination with ULINK debug adapters, MDK-Essential provides advanced real-time debug, trace, and analysis capabilities from RTOS Kernel-aware debugging up to full instruction trace for capturing the complete program execution of an application.
Product Selector: www.keil.com/arm/selector.asp