I'm new in the NFC world and I'm currently evaluating your NTAG I2C (www.nxp.com/demoboard/OM5569)
As far as I know, it is possible to lock the chip through NFC, so that it is "read only".
Is it possible through I2C to unlock the chip ?
Thank you in advance
Hello Patrick Terreaux:
As you mention the NTAG I2C tags have the static lock bytes and dynamic lock bytes to configure different regions of memory to "read-only" mode.
Once the lock bits are set to '1', this is irreversible from RF interface (NFC side), but the bits can indeed be reset to '0' from the I2C interface.
I hope this clarifies.
Have a good day!