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! ST25DV04KC disable RF writing

Hello All.I want to disable RF write access for all the user memory. Do I have to use RFA1SS like: Write password 00000000;If security session is open:     Read RFA1SS, OR it with mask 0x0C and write back to RFA1SS;     Write password ffffffff.?Do I ...

baranovus by Associate III
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  • 2 replies
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Resolved! ST25R3916 - I2C Issue

Hi everyone,I'm currently working on reading and writing the registers of the ST25R3916 chip, which is mounted on the NFC08A1 board. However, I'm running into some issues with the I2C read and write operations.Below is the code I'm using to attempt r...

Resolved! STSW-ST25R-LIB using SPI while in IRQ context

Hello everyone, in a project we are using the ST25R3916 chip to read RFID cards. To do this we are using the sources of the STSW-ST25R-LIB library. If the ST25R3916 sets its IRQ output, the routine st25r3916isr() is called. In this ISR the interrupt ...

afr_e2 by Associate II
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  • 10 replies
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Resolved! T2T Emulation Response Failure

I'm working on emulating a T2T with my device. It successfully makes it through automatic anticollision, then starts looking for commands. When I see 0x30 0x00, I go ahead and send the first 16 bytes, but the reader does not react or show the read da...

LltWc_0-1727819257864.png
LltWc by Senior
  • 1920 Views
  • 14 replies
  • 1 kudos

Resolved! STM32 Pressure Sensor PCB Project

Hi I am in the the process of trying to replicate the STEVAL-SMARTAG1 board but with different sensors. I am new to making PCBs so I don't know if I've overlooked important considerations. A goal of my project is to remove the battery to reduce the b...

isaacseeto_0-1725240650434.png isaacseeto_1-1725240665915.png

Resolved! Code Example for ST25R3916

Hello, I’m working on a project with an X-NUCLEO-NFC08A1 board to use it as an NFC Reader. Specifically, I have an NFC TAG, and I want to use the NFC08A1 board to read and write to this TAG.I’m currently looking for some example code to help me use t...

Resolved! Configuration Security Session via RF not working

I am working with the ST25DV tags.  I have generated a capability container, TLV Header and Terminator and construct a well-formed NDEF message with 5 records.  I am able to read/write single/multiple blocks and perform most actions that i need in in...

anjalani by Associate
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  • 2 replies
  • 1 kudos