Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hi,I am using the st25r3916b chip with phase awaken, wake-up timer range of 800 msec and delta 3.Once it wakes up, I go to read the value in the register 0x3A (Phase measurement display register) in order to check which is the difference between of t...
It is getting hang at this point, going to infinite loop MCU: STM32F407SPI1 InterfaceTried ST25R_SELFTEST as well same problem
Hi, we use the ST25DV16KC and for development i use the ST25R3911B. Problem is: ST25R3911B connected via micro usb to the pc. so far looks good Pressing the TAG Editor Button I just want to read the config: Pressing Button Read Configuratio...
HiFrom the ST25R3919B datasheet, I cannot find or understand the voltage level of EXT_LM. Does the EXT_LM voltage level depend on the VDD supply?”BR
Hi I am evaluating NFC function on your STEVAL 25R3916B board, but I would like to see how it works with the I2C interface. Currently, the default configuration is SPI.I have downloaded STM32CubeIDE and STEVAL-25R3916B_V2.1.0 project code, but am not...
Dear STMicroelectronics TeamI am currently developing a wearable board (WB) that integrates NFC communication and wireless charging features. For this design, I am considering using the ST25DV64KC as the NFC Dynamic Tag and the ST25R3916B as the NFC...
Questions about the Transparent mode.The ST25R200 is cheaper then discrete components for a non-standard RFID interface ( at 848 KHz subcarrier )Questions about the transparent mode:I am struggling with the receiver in this mode.( An example with sig...
Hello, I have a problem after updating the system to Android 16. Before, everything was great. I have a custom application to work with ST25DV04KC. Now, the NFC service crashes before connection, and the system app opens NDEEF. Only on the first "tap...
Hi Team,I am working with the STEVAL-D25R16B kit and have encountered a critical discrepancy in detection range between the embedded "Reader/Writer" demonstration and the PC-based USB mode.Here are the test results using ISO15693 tags:The Setup:Tag A...
HelloI want to emulate NTAG215, but I don't think the CE corresponding to T2t is in RFAL. I'm not sure if I understand it correctly, but,First of all, the status of my code is as follows.FreeRTOS-based ListenerCylce pollingEmulate nfc contextUID, SAK...