Hi jeremyzhou,
I was aware of this package, as I mention it in my question, stating "...but the files included on the FRDM-KE06Z drivers library are a mess and not similar to the ones included in the KSDK" The startup files included in that "library" for IAR are to stripped down, with no interrupt vector initialization and not really CMSIS compliant, as I understand. I was asking for something a little more "professional". In the mean time, I started writing my own, based on the template provided by ARM, but it would have been nicer if it was provided by Freescale/NXP.
Thank you for your time and best regards.