Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hello!Dear ST technician!Using the chip STM32L476 +3993 provided by your company and the original code provided by the official,I have encountered a problem of operating tags. I sincerely consult you here:When the tags of GB29768 is inventory,In tag...
Hello, I could not infer from the datasheet that ST25DV04K could be used at fast mode I2C speeds (400 kb/s). The datasheet states "Two-wire I2C serial interface supports 1MHz protocol". The datasheet does not mention compatibility with other I2C spee...
Hello,I am trying to read some NFC tag with a X-NUCLEO-NFC03A1 attached to a NUCLEO F091RC board. I am a beginner into those technology, so basically I was trying to load the sample "NFC Detect " from the package "X-CUBE-NFC3" wich can be found on ST...
Hardware Setup: MCU: STM32L496ZG (Nucleo- L496ZG board) connected to ST25R3911B over SPI, tag is ISO15693 compliant Software: Using the rfal library and the iso15693 APIs in en.STSW-ST25RFAL001 (V2.1.2)IDE: Atollic TrueStudio V9.3.0Is it possible to ...
Hi,We are facing a lot of problems with the SPI communication with an ST25R95 device. We are using as a main CPU an Silicon Labs EFR32MG13 with the next configuration: config.master = true; // master mode config.baudrate = 1000000; // ...
For my first foray into the STM32 world I've been trying to get to read nfc tags with a STM32L475 and ST25R95 custom board. It is taking me a while to get used to the CUBE IDE, since including libraries many times results in errors, specially since I...
Hello,I am new to NFC solutions and want to design a product that can read tags for 40cm distance with ST25R3911B , could you give me some suggestions ? And how to adjust the antenna driver output resistance (register 0x27) to match the impedan...
I used ST25R3911 and ST25DV16K for nfc.I frequently get an error message about ERR_RF_COLLISION from rfalST25xVPollerFastReadMessage.What is the problem?As far as I know that RF_COLLISION is happened when the NFC reader has multiple NFC Tags nerab...
We are evaluating the M24LR04 for a specific application where energy harvesting is required. We have configured the energy harvesting mode 3 to ensure that it will attempt to continue to harvest with low magnetic field strength. However, we regula...
Hi,Hardware Setup: MCU: XMC4200 (infineon) connected to ST25R3911B over SPI, tag is ISO15693 compliantSoftware: Using the rfal library and the iso15693 APIs in en.STSW-ST25RFAL001 (V2.1.2)I am able to successfully read the inventory, write a single b...