VTAP NFC tag emulation settings

A list of all configuration settings which relate to VTAP NFC tag emulation for the config.txt file.

VTAP can emulate an NFC Forum Type 4 card or tag, containing NDEF encoded data. If you tap a phone on a VTAP in card emulation mode, a URL could be launched or Text data displayed on the tapping phone.

The VTAP emulated tag can also be written to, for example by an Android or iOS app. Any NDEF record data written by the app will not overwrite the emulated tag data, but instead is intercepted by the VTAP and could be output over any of the VTAP comms interfaces, treated as though it was a data read from an NFC tag.

CardEmulationMode lets you enable VTAP NFC tag emulation and CardEmulationData sets the data that will be passed when the VTAP is in a card emulation mode. These settings can be adjusted dynamically using the ?card and ?cardmode commands in the section Dynamic configuration commands.

There is more information in the VTAP Application Notes.

Settings below: CardEmulationMode | CardEmulationData

CardEmulationMode
Definition:

This enables or ends a mode, where the VTAP emulates an NFC Forum Type 4 card or tag, containing NDEF encoded data.

Options:

=0 to leave card emulation mode,
=1 to enter card emulation mode,
=2 to enter mixed mode, where the VTAP reads tags and passes but will also emulate a card.
For more detail refer to Choose card emulation mode on the VTAP.

Default value: =0
Example value: =1
CardEmulationData
Definition:

This defines the NDEF data to be sent by a VTAP reader that is in card emulation mode.

Options:

Format is =<type><:lang>,<NDEF>
<NDEF> data is assumed to be text if a <type> TEXT/URI/RAW/FILE is not included
TEXT (T) type is assumed to be English (en) unless another 2 character <lang>uage code is used
URI (U) requires a valid web address
RAW (R) is a raw binary message part for an NDEF record. Its length will be automatically set.
FILE (F) points to a text file on the VTAP containing one of the other command types.
For more detail refer to Set data to be sent from the VTAP in card emulation mode.

Default value: N/A
Example value:

=TEXT,Hello World!
=URI,http://www.vtapnfc.com
=RAW,D101055402656e4869
=FILE,tagdata.txt