Hi
See http://www.utasker.com/kinetis/TWR-K24F120M.html
Works with VisualStudio IDE and cross-compiles to final target with GCC (or from KDS, CW, IAR, Keil, Green Hills, CooCox, Rowley, etc.).
Simulates Ports, interrupts, DMA, UARTs, USB, ADC, Timers (PITs, LPTR, SYSTICK, PDB, RTC, FlexTimer), Low Power wakeups, Ethernet, CAN, Flash, I2C, SPI, SDHC, SPI, keyboards.
UART output is saved to a file and also sent to PC COM ports (or COM loop backs) so that the simulation of UART based applications can be connected to other devices for real-time operation.
Complete project simulation in (approx.) real-time to test and debug final code in the environment to eliminate most target debugging requirements. Project develpment times with it are greatly reduced over traditional methods.
Most KEA, KE, KL, K, KV etc. Kinetis parts are supported and projects developed for one type can operate on most other types with no (or only minor) porting effort.
Regards
Mark
Kinetis for professionals: http://www.utasker.com/kinetis.html