Hello Roberto Socorregut,
You can refer to the example code for OM5569-NT322E evaluation kit. Please find it in the "Downloads" tab in the next link:
OM5569-NT322E | NTAG I2C plus Explorer Kit | NFC|NXP
For prototyping or evaluation I would recommend you to get the kit. The NTAG I2C Plus driver code is for LPC MCUs, but it can be easily ported to any MCU since it consists of simple I2C commands.
In case of any doubts do not hesitate to ask in this community.
Best Regards!,
Jorge Gonzalez
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