Low Power RF & Wireless Connectivity

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NFC
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  • Forum Post: TRF7970A

    Abhishek kumar60117
    Hi All, Few days back I got the TRF7970A EVM and started evaluating the EVM GUI. There's a lot of support in terms of the firmware description and designing of own firmware. A lot of datasheets and guide let me understand the architecture of the NFC controller and the registers to personalize...
    on Sep 28, 2011

  • Forum Post: Inbuilt Firmware in TRF7970A EVM for Type 2 Tag not respondoing

    Abhishek kumar60117
    Dear All, The inbuilt firmware in the TRF7970A EVM kit has Type 2 Tag commnads implemented in it. But when I give the command to "Read (4 blocks)" , I get no response. Attaching the screenshot...
    on Sep 30, 2011

  • Forum Post: NFC Energy Harvest

    Alexander Schwartz
    Hi All, I'm upgrading an existing product from TRF7960 to the new TRF7970A to add it NFC capability and I was wandering whether it's possible to harness the energy from the RF field to charge a rechargeable battery? Is there any way to get the rectified voltage from the TRF7970 or should...
    on Oct 12, 2011

  • Forum Post: TRF7970 and Tag Encryption/data exchange and key storage

    Nadim El-Fata
    Hello, I am currently using the TRF7970A in my design and would like to know if you have any sample code to write and read tags (any standard) with authentication and encryption (AES preferable). Thank you.
    on Nov 16, 2011

  • Forum Post: TRF7970A - NFC tags that come with them, can they be attached to a circuit?

    Aaron Roth
    on Nov 30, 2011

  • Forum Post: Re: do i get support ?

    joju mohan
    (Please visit the site to view this file) dear sir, we can't race that much money for buying a rfid antenna from fegi we are preferring a low cost one. i saw DL8220 but i thing it can't be trusted no? what about assembling one is it possible. if it is what all product of ti can be used...
    on Nov 30, 2011

  • Forum Post: Passive NFC/RFID Target

    Hemant Kamat
    I am designing a peer-to-peer system using NFC devices, such as TRF7970a, for Industrial Control. The concept is to have a NFC target mounted on the end point that can communicate with a hand held controller. The target will not have its battery but will be powered on by the RF field of the controller...
    on Jan 15, 2012

  • Forum Post: Re: TRF7970A 106k end of communication indicator

    Marco
    Hello Josh, Kostas asked me to provide further information for this problem, in special the register settings before I send the direct command for TX. You can find the register settings at the end of this post. Additionally I recognized that there are 2 types of "end of communication"...
    on Mar 28, 2012

  • Forum Post: Re: TRF7970A 106k end of communication indicator

    Marco
    Hello, in the meantime I made one step closer to the solution: The NFC106 standard frame enforces one parity bit per byte. Thus the last bit is not a part of "end of communication", it is the parity bit for the byte. So it changes depending on the even or odd amount of ones in the byte...
    on Apr 11, 2012

  • Forum Post: TRF7970A 106k end of communication indicator

    Marco
    Hello, I tried to reproduce the bit coding for NFC 106k as described in the ecma 340 standard document Near Field Communication Interface and Protocol. Therefore I transmitted one byte with the content 0x0F and had a look at the modulation pulses of the modified miller coding and the additional...
    on Mar 26, 2012

  • Forum Post: TRF7970A IRQ Status Register (0x0C) irq_col_err+irq_col at the same time.

    Marco
    Hi, I am currently working on a NFC active/active initiator/target system. I recognized that RF Collision Avoidance blocks until the disturbing RF source is switched off. As soon as the disturbing RF Field is switched off, the RF colission avoidance succeeds and I get two Interrupts: col and col_err...
    on Mar 20, 2012

  • Forum Post: RE: Connecting the TRF7970 to an Android device

    Gregory Pierce
    Thanks Josh. You are correct in that we are essentially trying to get the board to act as a tag and that's what I'm going to target initially just to get the use case out of the way. However, the Android Beam use case is certainly where I would like to go long term and I would love to look...
    on Jun 7, 2012

  • Forum Post: Connecting the TRF7970 to an Android device

    Gregory Pierce
    Hi folks, I am looking for some documentation that describes how to put the TRF7970 in tag emulation mode so that it can emit a URL that it would pull from the computer it is connected to and deliver that to an Android device. The Android device wouldn't have anything special installed on it, and...
    on Jun 6, 2012

  • Forum Post: TRF7970A NFC function

    1981515
    Hi, I'm using TRF7970A connected to the MSP430 MCU. The device I'm building works in two modes: 1. RFID tags reader. In this mode the device scans RFID tags and stores the data on an EEPROM. This works fine. 2. In this mode one device should read data previously stored on another device....
    on Sep 8, 2012

  • Forum Post: Of the shelf amplifier

    mathieu dechamp
    Hi everyone, I'm evaluating different NFC solutions for my company and right now I'm doing some tests with a TRF7970 EVM board. I've researched the forum for an amplifier solution and I found the TRF7960 amplifier design. My problem is that our expertise is in embedded software...
    on Oct 9, 2012

  • Forum Post: Problems setting the TRF7970A EVM in PASSIVE TARGET mode

    Lluis Olivet
    I have the TRF7970A EVM, and I manage it directly using our own MCU. The communication between both devices is over SPI. Further I have a Sumsung Nexus with an NFC initiator application, to test the functionality. The functionality that we are looking for is: NFC peer-to-peer passive communication...
    on Apr 19, 2012

  • Forum Post: RE: TRF7970A as passive RFiD tag!

    Armando Gonz��lez
    Thanks Lenio Cacula for your kind reply. 1) You mean is that I need to add to TRF7970A, a microcontroller as shown in the datasheet of TRF7970A (MSP430 microcontroller) and set it in one way: SPI or parallel as shown in Section 4 of the datasheet? Anyway, using it or not as a passive tag ? 2) What...
    on Oct 18, 2012

  • Forum Post: TRF7970A as passive RFiD tag!

    Armando Gonz��lez
    Hi everyone! I am currently working on a project where I have to use an NFC chip as an 13,56Mhz RFID passive tag, where the transmission of the id code associated with the chip is controlled by a microcontroller. Currently I can have the TI NFC chip TRF7970A for project development. I have several...
    on Oct 16, 2012

  • Forum Post: HDX with NFC Android

    Kricher
    Hi I want use the TRGPR30TGC transponder but I don't know if I can read it with NFC in a Samsung Galaxy S3. Can you help me please ? Thank you so much for the help.
    on Oct 19, 2012

  • Forum Post: Passive target Design - TRF7970A

    Adriana Castillo
    Good night guys! Currently I am new to the world RFID-NFC and am starting to do some work and experiments with 13,56 Mhz passive tags. I'm interested to know how I can physically connect (circuit level diagram) a TRF7970A to make it work as a PASSIVE TARGET!. I found that in the datasheet of...
    on Oct 23, 2012

  • Forum Post: Mifare emulation into TRF7970A

    G.M.
    Hi Ti eng, do you have any update about hte porting of the MIFARE Classic Crypto1 algorithm into MSP430? Thanks a lot, BR, Giordano
    on Feb 28, 2012

  • Forum Post: P2P between two TRF7970A without GUI?

    Ricardo do Valle
    Hi, I have tried to establish a connection and exchange data between 2 boards without using the TRF7970 EVM Control, but whitout sucessul. Is there any simple example source code or a guide with the state machine communication? Thanks a lot,
    on Nov 18, 2012

  • Forum Post: How to start N.F.C. communication

    Daniel Cardenas
    Hi everybody, I am new in N.F.C. technology. I've been working like three weeks trying to start a communication between my device and a T.I. tag (the RI-TH1-CB1A) but I have not been able to do it, I am communicating with the chip trf7960a very well, in spi with S.S. mode, I can see all registers...
    on Nov 27, 2012

  • Forum Post: i'm having trouble with communicating trf 7970A with my nokia 603 device....

    thomas paulson
    i'm an engineering student doing project based on a creation of an app for money transaction through mobile phone (a prototype) but first i need to link up my device with TRF7970A. Actually i'm having trouble with establishing communication b/w nokia 603 device and trf 7970. i'm stuck in...
    on Dec 4, 2012

  • Forum Post: RE: i'm having trouble with communicating trf 7970A with my nokia 603 device....

    Vineeth Babu
    I'm also having the same problem dude... Please help us out. Is this issue coming with Symbian phones only?
    on Jan 14, 2013
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