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! 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
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  • 5 replies
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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...

Resolved! ST25DV64KC - Fast Read Single Block

I am developing an Android app to read values from the NFC-v tag (ST25DV64KC). To revalidate my implementation, I am using the ST25 TAP app and then sending a custom command to test the commands according to the data sheet (ST25DV64KC). From an Andro...

Present password crash when enabling mailbox

Hey ,   I have tried a few strategies to fix my codebase. Ive now reused the same NFCTap App iOS project and customized it according to my view.   Good news is that the previous problems are gone now. But sadly I am stuck in another problem now.   Wh...

Screenshot 2024-12-03 at 14.24.54.png
Aly by Associate III
  • 328 Views
  • 1 replies
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Resolved! Tunning circuit for 25R200 and antenna

Hello I am trying to use the NFC Tuning Circuit to use this anteanna (https://www.te.com/en/product-L000641-01.html) to work with ST25R200 (https://www.st.com/en/nfc/st25r200.html).Some of the parameters needed on the tool are not on the antenna data...

Memer by Associate
  • 515 Views
  • 2 replies
  • 1 kudos

Resolved! ST25R3911B- DISCO advice

Hey,I want to test an off the shelf Molex NFC antenna 15*15 mm using the ST25R3911B. Is it possible to connect the antenna to the discovery board as I wanna evaluate the antenna whilst connected to the ST25R3911B? If so, how can I test the setup? If ...

Csxhades by Associate
  • 406 Views
  • 2 replies
  • 1 kudos