Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hi ST membersI am using the ST25R95, following the application note and matching tool to define LC components for EMC filter and matching circuit. the function test is good, but I have a high pulse at 3rd harmonics 40.8MHz and 7th 94.92MHz, do you ha...
Hello ST Community,I'm currently trying to implement a simple function: turning the RF field ON and OFF for a desired duration using the X-NUCLEO-NFC08A1 board.Here is my current setup and progress:I’m using the STM32F401RE Nucleo board as the host ...
Hello ST Community,I found this forum and the example code to our custom hardware very helpful and are successfully reading both NFC-A/NFC-V and emulating NFC-A on ST25R3918.During testing, I've noticed that NFC-V tags with NDEF messages can also tri...
Hi everyone,I'm working on writing the configuration password (PWD_CFG, 0x00) to an ST25TV02KC NFC tag using the ST25R3916B reader and the RFAL middleware (X-CUBE-NFC6). I am following the standard procedure:Open a CONFIG security session using Pres...
Hello, I have x nucleo 09a1 and I managed to run it in wake up mode with a different processor than stm and register. But there is a high current in wake up mode and power down mode. I am sharing the relevant graphics and code, please help.
Hi everyone, I’m trying to split an ST25TV02KC NFC-V tag into two memory areas using the RFAL (RF Abstraction Layer) library:1. Area 1 (blocks 0 … END_A1) should be public (read/write without password)2. Area 2 (blocks END_A1+1 … max) should be prote...
Hi everyone,I’m currently working with ST25TV02KC NFC tags and the ST25R3916B reader, using the RFAL library.I’m trying to access the configuration registers via the following functions:rfalST25xVPollerReadConfiguration(...)rfalST25xVPollerWriteConfi...
Hi everyone,I'm working with the ST25TV02KC NFC tag (NFC Forum Type 5) and using the ST25R3916B as my custom reader (on a PCB). I’d like to be able to read from and write to the tag using my reader, but also allow partial access via smartphone (e.g. ...
Hi,I am trying to measure the parameters of an external differential antenna I designed. I have been using the application note AN4974 in order to figure out how I can measure these parameters and I have some confusion on the setup and the results I ...
Hello,Tag reading was working perfectly on my previous setup.I now want to migrate my project from an STM32G0B1RE to an STM32L073RZ. Since the Arduino UNO R3 physical pinout standard is respected, the X-NUCLEO-NFC08A1 shield (which uses SPI, IRQ, LE...