Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
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 ...
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...
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 ...
Hi,Is there any NFC chip that is capable of emulation NFC-V Tags (ISO 15693)?Thanks.
I connected a Raspberry Pi 3 to the ST25R3911B-DISCO and used the Linux driver suggested by ST. However, I haven't been able to successfully detect the IRQ despite following the setup. Any suggestions on troubleshooting this issue?
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...
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...
I am designing a custom board using your ST25R95 chip. To design the matching network given the antenna parameters, which I show in the following picture: The tool you recommend (ST25R95_EMI_FILTER_CALCULATION) for the matching network returns me ...
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...
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...