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! How often should rfalNfcWorker() be called?

Hello, I'm working on a bare metal implementation, reading ISO 14443A UUID and about 8 of the custom bytes. It's working fine. My question is how often should rfalNfcWorker() be called? Should this be called once per 100mSec, once per 1mSec, or jus...

Resolved! ST25TA RFAL password management

Hi all,I'm currently developing an application with an X-UNCLEO-NFC03A1 evaluation board on an STM32L4, in order to write and read some NDEF messages on some ST25A02/16K that i have, protecting them with the 128 bits password.For starter, I'm running...

DScio.1 by Associate
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Resolved! ST25R3916B not detecting tags

Hello, I ported the porting example to a different processor. The self tests are enabled and initialization passes. However I'm not able to read a tag. Logic captures (Salae) are attached. I've verified that I'm receiving interrupts and processing ...

Resolved! NFC06A1 matching circuit impedance

Hello :)Does anyone know what the impedance of the existing antenna matching circuit on the X-NUCLEO-NFC06A1 board is? I can't seem to find that information in any of the datasheets. I need the impedance so that I can design a new custom antenna. Br....

JGreve by Associate II
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Resolved! What is ST25R3918 max range with 43x43mm antenna?

Hi,I'm new with RFID technology especially when it comes to designing antennas on boards and calculating matching circuits but... I have successfully designed and manufactured my board with ST25R3918 and I have a few questions.I have a 43x43mm on boa...

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KMadry by Associate
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Resolved! ST25R3916B I2C Reference Design

Hello,we designed a PCB with an ST25R2916B which should connected via I2C.As basis for our design we use the schematic for the X-Nucleo-NFC06A1.Our Problem:If we connect the modified (UM2616, Chap. 3.5.1) X-Nucleo-NFC06A1 to a Nucleo32 running the NF...

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SRauh.1 by Associate II
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