Hi
See the links below.
uTasker has on-going support for almost all parts, including the oldest: in CodeWarrior, KDS, MCUXpresso, IAR, Keil, Greenhill, CooCox, Rowley Crosswork, Atollic TrueStudio, S32 Design Studio, Standalone make and Visual Studio.
With its unique Kinetis simulator (allowing projects to be simulated in near-real time - including DMA, Interrupts, peripherals and external devices) it represents a highly efficient development environment with quality and industrially proven code.
You can get it for free on GitHub or for professional work there is a licensed version with personal support to ensure your project is quickly successful.
It is a long term project (with 7 years Kinetis history to date) which ensures stability and continuity over the development cycle and longer For example, Coldfire and LPCxxx developments {Kinetis predecessors} performed 12 years ago can be run on almost any Kintis part with virtually no porting effort due to tight HALs and continued backward compatibility).
Regards
Mark
Kinetis: http://www.utasker.com/kinetis.html
Kinetis K20:
- http://www.utasker.com/kinetis/FRDM-K20D50M.html
- http://www.utasker.com/kinetis/TWR-K20D50M.html
- http://www.utasker.com/kinetis/TWR-K20D72M.html
- http://www.utasker.com/kinetis/TEENSY_3.1.html
- http://www.utasker.com/kinetis/tinyK20.html
For less questions and restrictions, and faster, cheaper developments: try uTasker for Kinetis