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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Override custom commands

The ST25DV and M24LR define custom commands for specific purposes.  Is there a way to override these command values so I can send a small few byte payload over NFC to the chip, read the payload, and send back a response with the same command value?Th...

Resolved! st25r3916B NFC card emulation

Hi,I have been working with the st25r3916 in my reader. My idea is to use a mobile to communicate with the reader in card emulation mode. I have been using the demo code for st (ST25NFCEmbeddedLibSrc_ST25R3916(B)_1.6.0).With IOS it is working fine, a...

SG3 by Associate III
  • 2173 Views
  • 9 replies
  • 1 kudos

Resolved! Improvement in STSW-ST25RFAL 3.0 source

HiWe think the following impotentes should be done in STSW-ST25RFAL 3.0 source1) Add to rfal_analogConfig.h, rfal_crc.h, rfal_iso15693_2.h header files.#if defined( __cplusplus )extern "C" {#endifotherwise this file makes it difficult with C++ 2) Add...

CanRF by Associate III
  • 786 Views
  • 3 replies
  • 1 kudos

Resolved! X-NUCLEO_NFC04A1 mailbox

Hi,I am working with the X-NUCLEO-NFC04A1 board and would like to use its mailbox functionality. So far, I have been using the example provided by ST, where the mailbox is used to write and read data using the same device.I have extended this example...

Resolved! Possible bug in ST25NFC_Embedded_Lib_ST25R3911B_1.6.0

We use ST25NFC_Embedded_Lib_ST25R3911B_1.6.0 for our current project.There are some example inside.In most example in stm32l4xx_hal_msp.c are the following code: GPIO_InitStruct.Pin = GPIO_PIN_All & (!(GPIO_PIN_3));HAL_GPIO_Init(GPIOB, &GPIO_InitStru...

CanRF by Associate III
  • 400 Views
  • 1 replies
  • 1 kudos

Resolved! M24SR64-Y Antenna Design

Hello,We recently designed an antenna patterns for  M24SR64-Y chip. As per the spec, the central frequency of this chip is centered around 14.2MHz, (Please correct me if my understanding is wrong). Thus we proceeded to design the antenna with STM ede...

ELTESuraj_0-1720946104275.png ELTESuraj_1-1720946564838.png

Resolved! changing GPO source of st25dv04k

  Hello everyone,I'm currently working with the ST25DV NFC tag and I've encountered an issue with configuring GPO (General Purpose Output) interrupts. My goal is to trigger interrupts using various GPO masks, but I've run into a problem where only 'S...

Resolved! ST25DV64KC NDEFDectection failure

I'm trying to read NDEF messages from my ST25DV64KC tag over I2C link. I have been able to read the CC file successfully but the NfcType5_NDEFDetection() method is failing while reading the first four bytes of the NDEF message from User memory. The l...

Nishi by Associate
  • 465 Views
  • 1 replies
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Resolved! NFC and wireless charger all in on

Looking for an NFC  Tag that can also do something like this:Features■ Highly integrated NFC Wireless Charging Listenerdeviceo Highly efficient Active Rectifiero Up to 1W harvesting powero RF interface according to NFCForum Type 2 Tago Li-Ion battery...

DS.4 by Senior II
  • 781 Views
  • 1 replies
  • 0 kudos