Hi,
If you are referring to the TWR-K40X256, there exists a bsp and psp (MQX library) for this board. You can download the latest version of MQX from this link: Freescale MQX&#8482; Software Solutions - Releases and Patches</title><meta name="...
In the installation folder you will find a guide to install it.
If you are using a custom board you will need to create your own board support package (bsp).
Hope this helps.
