Hi BillND,
Please check the below link.
http://supp.iar.com/Support/?Note=95292
Could you please share with us a little bit more information about the application that you need to develop?
In order to use IAR and MQX you can check the Getting Started with Freescale MQX™ RTOS and IAR Embedded Workbench® . This document describes the steps required to configure the IAR Embedded Workbench® development tools and use it to build, run, and debug applications of the Freescale MQX™ RTOS operating system.
You can find this document after install MQX at the next path: C:\Freescale\Freescale_MQX_4_1\doc\tools\iar
Have a great day,
Sol
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