Type 4 Tag procedures

This module provides functions to perform the NDEF detection procedure, which is used to retrieve the NDEF message from the data of a tag.

The full NDEF detection procedure consists of the following procedures:

1. NDEF tag application select.

2. Capability container (CC) select.

3. Capability container read.

4. NDEF select.

5. NDEF read or NDEF update.

After a successful NDEF detection procedure, you can also write data to the NDEF file. To do this, you must perform an NDEF update procedure.

This module uses three other modules:

• APDU reader and writer for generating APDU commands

• Parser for CC files for analyzing APDU responses payload and storing it within the structure that represents the Type 4 Tag content

• ISO-DEP protocol for transferring data over ISO-DEP protocols

API documentation

Header file: include/nfc/t4t/hl_procedure.h

Source file: subsys/nfc/t4t/hl_procedure.c

NFC T4T High Level Procedure