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kahlenberg
Associate II
October 7, 2024
Solved

Is there any NFC chip that is capable of emulation NFC-V Tags?

  • October 7, 2024
  • 2 replies
  • 1565 views

Hi,

Is there any NFC chip that is capable of emulation NFC-V Tags (ISO 15693)?

Thanks.

 

This topic has been closed for replies.
Best answer by Ulysses HERNIOSUS

Hi kahlenberg,

as said: "Transparent mode": Almost completely bypass the digital logic (framing, CRC, timings, ...) and just use ST25R3916 as low level front-end. Just look for this term in the DS.

Ulysses

2 replies

Ulysses HERNIOSUS
Technical Moderator
October 8, 2024

Hi kahlenberg,

I am not aware of any NFC reader chips being able to emulate NFC-V - neither in ST portfolio nor competition.

ST25DV is maybe something interesting for you - not exactly doing card emulation but at least offering ways to exchange data from an MCU through the ST25DV with another MCU behind an NFC reader chip.

 

BR, Ulysses

Ulysses HERNIOSUS
Technical Moderator
October 9, 2024

Hi kahlenberg,

as hinted by @unknown : Flipper Zero uses ST25R3916 to even emulate T5T. 

But it does that by going really low level on the transparent mode. I don't have the details of the Flipper Zero but typically such an implementation would use the a feedback of the MCU_CLK into the MCU to generate a timing accurate modulation signal on a GPIO pin and sample the reader modulation on another GPIO.

BR, Ulysses

Brian TIDAL
Technical Moderator
October 9, 2024

Hi kahlenberg,

see https://github.com/flipperdevices for Flipper Devices open source projects. 

Rgds

BT

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Ulysses HERNIOSUS
Technical Moderator
October 9, 2024

Hi kahlenberg,

as said: "Transparent mode": Almost completely bypass the digital logic (framing, CRC, timings, ...) and just use ST25R3916 as low level front-end. Just look for this term in the DS.

Ulysses