ST25 NFC/RFID tags and readers

Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.

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Resolved! ST25R95 detect ST25D tag

I use ST25R95 to detect the ST25D tag. I keep the tag on the antenna of the Reader all the time, and some situations have occurred. Hi Even if I place it precisely on it all the time, the tag may not be read probabilistically during detection. Is thi...

Eyzeryong by Associate III
  • 1102 Views
  • 12 replies
  • 5 kudos

Resolved! ST25R3916 Inductive Wake-Up

Where can I find details on inductive sensor wakeup for the ST25R3916? It's only even mentioned on pages 1 and 11 of the datasheet. My understanding is that inductive wake-up will detect tags only, whereas capacitive will detect other objects like a ...

LltWc by Senior
  • 385 Views
  • 2 replies
  • 0 kudos

Resolved! M24SR64-Y Interrupt - GPO as INT configuration

Hello, everyone,I have a problem with setting the GPO of M24SR64-Y as an INTERRUPT. The micro needs to come out of Sleep condition through an Interrupt sent from smartphone via RF, I saw that you have to set the GPO with 0x4X, but I don't know how to...

Niko97_0-1731075383702.png
Niko97 by Associate
  • 475 Views
  • 1 replies
  • 0 kudos

Resolved! Unexpected interrupt after Tx enable on ST25R3916

I'm trying to figure out some unexpected behavior (that I've posted about before) after successfully implementing alternation between T2T Card Emulation and Reader/Writer such that they seem simultaneous to the end user.During device initialization, ...

LltWc by Senior
  • 634 Views
  • 5 replies
  • 0 kudos

Resolved! CR95HF and DESFire

Posted on April 21, 2014 at 05:45 Hi Everyone, I'm using the CR95HF to access the DESFire card. Everything was going fine up to RATS and PPS. However when I tried to send the GetVersion Desfire command (0x60) using the Half-duplex block transmission...