Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hello everyone,I am trying to control the GPO interrupt of ST25DV16 using X-CUBE-NFC04. I know that I should change the GPO register. As I want to use GPO_RFWRITE and GPO_ENABLE so the register value should be 0xC0. But when I want to use function CU...
Hello,Can we copy ST demo software(middleware) if we use ST25R3916 chip but not not using ST MCU?Lets say I am using PIC microcontroller to talk to ST25R3916. Can I copy Auto Antenna Tuning algorithm provided in st24r3916_aat.c/.h?Thanks! BR,Cindy
Hi expert, I purchursed the ST25DV64KC - DISCO, but there is no the Daughter Board Schematic (FLEX-ST25DV64KC) of ST25DV64KC - DISCO avalible on the www.st.com. Can you provide it ? Thanks so much. Best Regards,Yulong
Hi,I have a c++ project using the ST25R95 as a reader talking to a STM32L4 micro. I want to play around with putting it in tag emulation mode so I can use an external reader to read data from it.I see references to emulation in the data sheet but do...
Hello,I am currently using the ST25R95 chip for NFC tag detection. We are encountering an issue during implementation: when metallic objects like a car smart key's battery holder are near the NFC antenna, the NFC tag cannot be detected.I would apprec...
Hi,We have designed a board based on ST25R3911B and it is about to be tested by a Notified Body with regards to RED/EMC.In relation to this, I am wondering if there is ready-made SW available, that can be used for setting the radio to transmit a sing...
Hi, I have a question regarding antenna design for my project, creating an NFC reader. I am a beginner (student) when it comes to development. Why is the antenna connected to GND? Does it have to be this way, and is there a detailed explanation somew...
Hi, is it possible to use the ST25R3916B with an resisitve divider (instead of the capacitive divider) at the RF Inputs to limit the input voltage to a safe value.In case this is possible, is an additional DC-Block needed?I am driving a purely resist...
Hi,I am designing an NFC transmitter that uses ST25R3916B-AQWT. The coil will be connected to the RFO1/2 pins. In order to design the coil properly, I will need to know the driver's impedance spec for the various d_res<3:0> multiplier values (Table ...
Hi,I've purchased the ST25R3911B-DISCO and it's working fine with ST25PC-NFC.exe.I would like to communicate via uart with ST25R3911B-DISCO in order to implement the tag reading in Labview. There is any document that explain how to create packets to ...