Hello,
I can provide different documents that will help you get started. If this is the first time you are using the CLRC663 and want to become familiarized, I'd suggest to take a look at our evaluation board, the OM26630FDK. This is an NFC Frontend Development kit, which uses the CLRC663 plus and LPC1769, which is interfaced by SPI.
The nice thing about this is that there is already made examples that you can work with in the NFC Reader library.
If you'd like to continue working with the ST32 in the future, you could use the examples as a reference, but would need to modify the code in order to be able to communicate between the two. The guides that we have available to port to other MCUs are for the K64, LPC11u37, and i.MX RT1050.
Documents you might need:
CLRC663 Datasheet
Antenna Design Guide
lso, I would recommend you to check this videos
NFC Standards
NFC Essentials
CLRC663 plus - Push your NFC design further
NFC Reader Library - SW support for NFC frontend solutions
How to port the NFC Reader Library to K64F
Hope this information is useful, have a great day!
Sabina
