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8. NFC module management interface
commands
The NFC module exposes a HID interface, known as the Management Interface. Your application
software uses the Management Interface to manage and configure the NFC module. This section of
the manual describes the command set and its responses.
The Management Interface sends commands as HID reports.
The report length is always 64 bytes long, even if the commands are just a few bytes.
The NFC module ignores unused bytes at the end of the commands, but the recommendation is
that you should initialise unused bytes to
[0x00]
. The example commands and responses omit
trailing zeroes.
Note:
If there is a response to the command, the command is successful. If the command times out,
it has failed.
8.1 Get firmware version
Use this command to retrieve the firmware version on the NFC module.
8.1.1 Management command bytes
Byte
Command/Value
Comments
0
[0x00]
Command byte
1
–63
[0x00]
Unused bytes, set to [
0x00]
8.1.2 Management response bytes
Byte
Response/Value
Comments
0
[0x00]
Command echoed
1
Firmware major version
2
Firmware minor version
3
–63
[
0x00]
Ignored (61 bytes)
8.1.3 Example
This command retrieves the firmware version (0112).
Command:
[0x00]
Response:
[0x00][0x01][0x12]
