I'm trying to read out the session registers from an NTAG I²C. I'm using a PN532 board that I'm interfacing from an Arduino via SPI and have some trouble sending a SECTOR SELECT command.
First question: Is the PN532 capable of interfacing with NTAG I²C? If not, which reader IC is capable of doing this?
According to the NTAG I²C data sheet, I need to send 0xC2 FF, which will then be answered by a 4 bit ACK, then I need to send the sector number in the next command.
If I use the InCommunicateThru, what I get as reply to the first command is a CRC error and no message. I guess this makes sense in a way, as the ACK is sent without CRC added to it and the PN532 chip expects a CRC at the end.
Is there a method to disable the CRC checking? Or any other way to do a sector select on an NTAG I²C? The documentation of the PN532 IC is rather sparse, I was hoping that the components are all compatible given that they are all produced by NXP...
I really hope someone can help me with this. Thanks in advance!