Nfc Configuration Tab - P2P Configuration; Peer-To-Peer Tab - Texas Instruments TRF7970A BoosterPack Getting Started Manual

TI NFC Tool GUI
3.3 NFC Operation Modes
Near Field Communication (NFC) offers three different modes of operation: Peer-to-Peer (P2P),
Reader/Writer (RW), and Card Emulation (CE). This section discusses operation of each mode with the
NFCLink Standalone GUI. For more information on NFC, visit www.ti.com/NFC.
3.3.1 Peer-to-Peer Mode
Peer-to-Peer (P2P) mode allows two NFC-enabled devices to communicate bidirectionally where both
devices are able to initiate communication as needed.
Common use cases for P2P include sharing content from device to device, firmware updates, and pairing
applications.
For detailed information about how Peer-to-Peer communication operates with the TRF7970A, see
Active and Passive Peer-to-Peer Communication Using the
3.3.1.1 NFC Configuration Tab
The Target Mode(s) and Initiator Mode(s) allow the user to select multiple modes that determine if the
TRF7970A acts as a target or an initiator and if passive or active communication is used (see
After selecting which modes to enable, click Start P2P. The NFC enabled devices poll or listen based on
the selected P2P modes.
3.3.1.2 Peer-to-Peer-Tab
When Peer-to-Peer mode is enabled and a connection is established between the TRF7970A and an NFC
device that is presented, the Peer-to-Peer tab automatically opens (see
includes information about the current mode, bitrate, technology, bytes received since the P2P
communication started, and the RSSI value. The Receive pane displays P2P messages received by the
TRF7970A.
When NFC Data Exchange Format (NDEF) messages are received, the GUI attempts to parse the data
and display it in ASCII. Text and URI Record Type Definitions (RTDs) are automatically parsed. Other
NDEF messages are displayed as an unknown RTD. Any non-NDEF formatted messages is shown in the
pane as raw data. Any NDEF messages received can also be found inside the NDEF.hex file located at
[Install Path] \tools\TI NFC Tool\TI NFC Tool\bin\Debug.
Most NFC enabled smartphone apps use the NDEF message format to exchange information over P2P
communication such as text messages and URLs.
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NFCLink Standalone Getting Started
Figure 15. NFC Configuration Tab – P2P Configuration
Copyright © 2016, Texas Instruments Incorporated
TRF7970A.
Figure 16). The P2P Status pane
SLOU452 – December 2016
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NFC
Figure 15).