Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hi,I am working on a project, where I want to maximize the speed when using the mailbox with the ST25xV commands.I use a ST25R3916B Reader and a ST25DV04K Tag.The data exchange process in my application looks like this:-(fast)write command-(fast)read...
Hi ST members ！Did ST25R95 tested against FCC Rule Part(s) 15？If yes ，can you share FCC certification link ，thaks！Usually ，ST25R95 transmit power will under this limit？
Hello ST Community, I am encountering a persistent issue while attempting to program a new password for the user memory in AREA1 of an ST25TVxxXC NFC tag using an ST25R200 reader and the RFAL library. I have followed below procedures for setting the ...
Hello,I am writing interface for ST25R3918 NFC chip for our BSPs using I2C protocol. The datasheet of the chip mentions non-standard I2C command for space-B access that there is no ACK from chip after sending of first byte "FBh".I can see that ST pro...
Hello, I would like if anyone had to use X-NUCLEO-NFC08A1 expansion boards with NUCLEO-U083RC and could reuse successfully the examples for NFC08A1? I see there are a few, but for other MCUs Thanks, Mihai
I'm attempting to use iso15693WriteBlock to write blocks of 4 bytes to a ST25DV04K tag. Everything appears to work and I don't get an error. However, when I read back the memory, the first byte of each block has been set to zero, and bytes 1 through ...
Hello, I am working with stm32cubeIDE using some NDEF example for nucleo NFC08A1 extension board with st25r3916b rfid reader. Debugging the demoCycle example I see that the code that should insert a repeat start on I2C communication does noth...
Hello,I'm currently working on a PCB prototype which uses the ST25R3911B as a front-end. I'm trying to handle multiple antennas in a time-multiplexed manner so i'm using both RFO pins and feeding them to RF switches (PE42421SCAA-Z, around 0.3-0.5 dB ...
st25r3911b in 14443A mode TX: BITRATE_848 RX: BITRATE_1695 tx is successful，when receive , switch B mode , but fail :CRC error ,soft framing error and hard framing error how can I solve this problem or Which registers still need to be modified?
Hi,we're working with the ST25R3918-AQWT in a design that's powered by a CR2054 coin cell. We're trying to minimize the peak current draw through the NFC coil since right now we're seeing about a 500mV droop on VBAT during our NFC read. We've already...
