1. As I know, RF430FRL152H is an ISO15693 tag, did you use the right example for this type of tag?
2.I think you may use LPCopen as a reference, which supports IAR and Keil, please refer to LPCOpen Libraries and Examples | NXP for details. BTW, what is the reason for IAR or Keil porting? MCUXpresso is a free IDE and easy to use...
3.We provide an example in the NFC reader library as shown below, you may use it as a starting point.

Hope that helps,
Have a great day,
Kan
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