Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
I need an NFC module that reads data from NTAG216 cards and also supports Android and IOS phones that send NDEF message from the phone to the NFC module. STM has many variants and models for NFC . I am totally confused and dont know where to start. C...
I'm trying to decide between the ST25R3911B or the ST25R3916? I realize the ST25R3916 is newer; but newer does not always equal better. Are there any advantages to developing with the ST25R3911B? Primary purpose is to read 15683 transponders in a ...
The RF password can only be set over RF, I2C has no ability to access these registers (RF_PWD_0/1/2/3). If an RF user sets a password, and then forgets it, is there any built in mechanism to reset the password back to its factory default, or some ot...
I want to use ST25DV-I2C's Fast Transfer mode on iOS and Android.It seems that it can be done on Android, but is it possible on iOS?I would like sample code if possible.
Hello. I use board st25ru3993-eval and application ST25RU3993 Reader Suite. When tags are readed we can see RSSI LOG Channel I & Q and Input Power. RSSI LOG Channel I & Q we can find in RSSI Display Register in AS3993, but i do not understand how cal...
Hi, I am not sure if this is the right place to ask this question.We are building a new product which requires NFC read/write support, we narrowed our options to one of 2 chips st25r39x and another nxp chip clrc663.Is there any advantage of using the...
Hello,I´m using an STM32 Nucleo G474RE and an X-NUCLEO-NFC04A1 and I want to use the interrupt function of the NFC board to detect a changing field, but the interrupt doesn´t get triggered by using this code (based on a example from ST):#include "mai...
We are using your board ST25R3911B but we need to use this board by program in c/c++. We found your DLL demo, but is it possible to send only first command to comunicate with ISO14443 type A like RQA/ANTICOLL/SEL and not a send and receive generic, a...
Hi,I'm using ST25R3911B-DISCO for reading tags, but I'm interested in optimizing my code.When a search how optimizing codes in C, I see people using #pragma but I don't have the answer in my code after in the proprieties in STMcubeIDE I will go to op...
Hi, When I leave my code to play for more than one hour I received the error HardFault_Handler(), I found in registers whats the last line executed before entering in the error function, below I put a picture of this part of the code. Note: That err...
