Hi,
Many people has been asking about migrating from MQX RTOS to MQX RTOS for KSDK. Such guide is now available in the following link:
http://www.freescale.com/files/soft_dev_tools/doc/support_info/MQXKSDKPUG.pdf?fsrch=1
If you need to create a new MQX RTOS for KSDK project please note that there is not a New MQX for KSDK Project Wizard, therefore it is necessary to create it manually. You can find a guide in the link below.
How To: Create a New MQX RTOS for KSDK Project in KDS
Best regards,
Carlos Musich
Technical Support Engineer