Texas Instruments: TRF7970AEVM Evaluation Module for TRF7970A Multi-Protocol Fully Integrated 13.56-MHz RFID/NFC Transceiver IC

atomar — Wed, 25 Jun 2014 00:53:05 GMT

Current Revision posted to Documents by atomar on 6/25/2014 12:53:05 AM

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The Texas Instruments TRF7970AEVMTRF7970AEVM is a self contained development platform which can be used to independently evaluate/test the performance of the TRF7970A RFID/Near Field Communications (NFC) Transceiver IC, custom firmware, customer designed antennas and/or potential transponders for a customer defined RFID/NFC application.

The TRF7970A evaluation moduleTRF7970A evaluation module (EVM) is intended to be used by to demonstrate the capabilities of the TRF7970A and help aid in the development process by providing a working hardware/firmware reference example for traditional HF (13.56 MHz) RFID and also NFC Forum operations.

Hardware Description

The TRF7970AEVMTRF7970AEVM is a self contained development platform which can be used to independently evaluate/test the performance of the TRF7970A IC, custom firmware, customer designed magnetic dipole antennas and/or potential transponders for a customer defined RFID/NFC Forum application.
The TRF7970AEVMTRF7970AEVM is configured from the factory in parallel communication mode between the MSP430F2370MSP430F2370 and the TRF7970ATRF7970A via 0-Ω resistors between HDR_4 and HDR_5 pads. On power up, the preloaded multiProductLinkmultiProductLinkmultiProductLinkMSP430F2370 firmware also checks the voltage level of P2.3 (pin 15), which is factory configured at HDR_7 to have I/O_SEL connected to Parallel connection via a 0-Ω resistor.
If the user wants to change to SPI with Slave Select operation, all that is needed is to move all the 0-Ω resistors connecting HDR_4 and HDR_5 together over so HDR_5 and HDR_6 are connected as well as moving 0-Ω resistor over on HDR_7 so that I/O_SEL and SPI connected instead.
The preloaded multiProductLinkmultiProductLinkmultiProductLinkMSP430 firmware handles either hardware configuration case, parallel or SPI with SS.
If a logic analyzer is to be connected to the TRF7970AEVMTRF7970AEVM, the user can install three-position 2-mm board headers at positions HDR_1 and HDR_3 for observation of DATA_CLK and IRQ signals.
An 8-position 2-mm board header can be installed at position HDR_5 for observation of the parallel or SPI signals between the MSP430F2370MSP430F2370 and the TRF7970ATRF7970A.

Key Applications: Mobile Devices (Tablets, Handsets) ,Secure Pairing (Bluetooth, WiFi, Other Paired Wireless Networks), Public Transport or Event Ticketing, Passport or Payment (POS) Reader Systems, Short-Range Wireless Communication Tasks (Firmware Updates), Product Identification or Authentication, Medical Equipment or Consumables, Access Control, Digital Door Locks, Sharing of Electronic Business Cards.

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Software Tools

The TRF7970AEVMTRF7970AEVM has SiLabs CP2102 USB to UART Bridge IC onboard. The USB driver must be loaded onto the PC before starting the TRF7970A EVM GUI. The TRF7970A EVM GUI should be downloaded from TI Site, unzipped into dedicated folder, and then executable can be launched.

Technical Documents

Learning Center

Type	Description
User Guide	TI: User Guide for TRF7970A Evaluation Module (EVM)
Datasheet	TI: Data Sheet for TRF7970A MULTI-PROTOCOL FULLY INTEGRATED 13.56-MHz RFID/NEAR FIELD COMMUNICATION (NFC) TRANSCEIVER IC
Selection Guide	TI: Selection Guide for Smart Grid Solutions
Application Note	TI: Application Note for Firmware Design Hints
Application Note	TI: Application Note for TRF7960 and TRF7970A Comparison
Application Note	TI: Application Note for TRF7970A Reference Firmware Description

Design Elements

Type	Description
Schematics	TI: Schematics File for TRF7970AEVM
BOM	TI: BOM File for TRF7970AEVM
Application Library	TI: Application Library for TRF7970AEVM Executable GUI
Application Library	TI: Software code for TRF7970A C Code Samples

Video

www.youtube.com/watch

Kit Features

The TRF7970A EVMTRF7970A EVM features include:

Support for:
- NFC Modes (RFID Reader\Writer, Peer to Peer and Card Emulation)
- ISO15693 standard based transponders
- ISO14443 standard based transponders (Types A&B)
FeliCa based transponders (UID read only)
Standalone Polling Mode for quick demonstration of transponder detection
Communication with Host Software Graphical User Interface (GUI) via USB VCP

The TRF7970A EVMTRF7970A EVM also has the following hardware features specifically for development purposes:

multiProductLinkmultiProductLinkmultiProductLinkMSP430F2370 Ultra-Low Power microcontroller with JTAG connectivity to development environment for custom firmware development.
Parallel or SPI connectivity via zero ohm jumpers
Logic Analyzer/Oscilloscope test points for relevant signal observation during code development
SMA (edge mount and through-hole) pads for connecting customer designed antenna.

Kit Contents

The Texas Instruments TRF7970AEVMTRF7970AEVM is supplied with the below contents:

Sample Bag of ISO15693 Transponders
TRF7970A Evaluation Module

Tags: trf7970aevm, texas_instruments, trf7970a