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Showing 893 results View by: Thread Post Sort by
    Answered
  • RE: TRF7970A: TRF970A for ISO15396 Chip Ring Reader Application

    Charles Tsai
    Charles Tsai
    Resolved
    Hi, roman konzet said: The reader must support ISO15396 and be capable not only of reading these tags but also of writing specific pages onto them. TRF7970A only supports the below listed standards, not ISO15396. However, It is possible to communicate…
    • over 1 year ago
    • Other wireless
    • Other wireless technologies forum
  • RE: TRF7970A:DLP-TRF7970A Request for Complete Schematic & Matching Network to Optimize Custom PCB Antenna

    Charles Tsai
    Charles Tsai
    Hi, ?? ? said: I want to redesign the antenna geometry (custom PCB loop) to improve 13.56 MHz NFC read range and reliability. I need to understand the stock matching network on the BoosterPack (L, C, damping resistor) and how it interfaces with…
    • over 1 year ago
    • Other wireless
    • Other wireless technologies forum
  • TRF7970A: How to enable the external antenna keeping the freerun mode?

    Mark81
    Mark81
    Part Number: TRF7970A Tool/software: I'm using this NFC reader and here there all the documents . It is based on TI TRF7970A transceiver. Without issuing any command it works in freerun mode, reading out any NFC tag in the nearby. But it uses the internal…
    • over 1 year ago
    • Other wireless
    • Other wireless technologies forum
  • TRF7970A: Help understanding TRF7970A direct commands and NFC-A Type 2 Tag read/write sequence

    Guillermo Mampel
    Guillermo Mampel
    Part Number: TRF7970A Tool/software: Hello, I’ve been working on developing a library for NFC-A (Type 2 Tag) read/write mode using the TRF7970A IC, but I’m getting a bit lost with the sequence of direct commands that need to be sent in order to transmit…
    • 10 months ago
    • Other wireless
    • Other wireless technologies forum
  • RE: TRF7970A: NFC-A emulation problem when NFC-F (Felica) discovery from Android

    Charles Tsai
    Charles Tsai
    Hi Benjamin, Although I don't understand how the Felica polling works myself, I find this presentation about Felica support for TRF devices. Hope it is usefully to you. /cfs-file/__key/communityserver-discussions-components-files/667/NFC-Forum-Type…
    • over 2 years ago
    • Other wireless
    • Other wireless technologies forum
  • RE: DLP-7970ABP: Esp32 integration with trf7970ab

    Charles Tsai
    Charles Tsai
    Hi, Please refer to the app note NFC/HF RFID reader/writer using the TRF7970A (Rev. B) and download the corresponding software collateral from https://www.ti.com/tool/download/SLOC297 . The software collateral was developed for the MSP430 host MCU.…
    • over 1 year ago
    • Other wireless
    • Other wireless technologies forum
  • RE: RF430FRL152H: RF430FRL152H – 0xC1 RAM Write Fails With TagLostException on Android Despite 100nF Cap and 8-Byte Payload

    Charles Tsai
    Charles Tsai
    Hi, I suppose you are referring to the custom write single command, right? sachin Amingad said: Is it possible the tag has vendor-customized firmware restricting 0xC1 ? Is there a way to verify if write/FRAM/RAM access is locked or protected…
    • over 1 year ago
    • Other wireless
    • Other wireless technologies forum
  • RE: RF430CL331H: Modulation Depth vs Index in DS

    Charles Tsai
    Charles Tsai
    Hi Luke, I think I will recall my earlier answer. While the RF430CL331H ds (which is a PICC) does not explain how modulation depth is define, I find the TRF7970A (a PCD) transceiver to have the below notes about the depth. 6.15.3.2.8 Modulator and…
    • 11 months ago
    • Other wireless
    • Other wireless technologies forum
  • RE: RF430FRL152HEVM: ADC0 Value Access

    Charles Tsai
    Charles Tsai
    Hi, Please follow section 5 in the RF430FRL152HEVM User's Guide for the jumper configuration in order to run the SensorHub demo. In order to run the demo, you would need to: - Change the jumper setting on the EVM as described in the User's Guide.…
    • over 1 year ago
    • Other wireless
    • Other wireless technologies forum
  • TIDM-DYNAMICNFCTAG: Maximum read range

    May
    May
    TI Thinks Resolved
    Part Number: TIDM-DYNAMICNFCTAG Other Parts Discussed in Thread: TRF7970A Hi Team, Good day, we received inquiry from customer and want to know some information about TIDM-DYNAMICNFCTAG. For me to not miss any information, Ill copy the query below…
    • over 5 years ago
    • Other wireless
    • Other wireless technologies forum
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