Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
I recently got an ST25DV-DISCOVERY board. I downloaded the firmware package from here. Which clearly states that it is a V1.1.2.I then installed the ST25 NFC Tap android app from the google play store (V3.7). When I tried to run the Fast Transfer mod...
Hi...Good day!I am evaluating ST25R3916-DISCO board, particularly RSSI related measurements.The DISCO board itself displays RSSI measurement as show in the image below. However using the "ST25R3916 Discovery GUI.ver1.2",although antenna output can be...
Hi everyone,I designed my own board for the St25ru3993. Now I am trying to ramp up the RF Field. But before I can do that i need to check if the PLL is locked and the oscilator signal is stable. So i read the AGC and internal status display register....
Hi :)I know ST25RU3993 use PIE encoding when it transmits data.In EPC Gen-2 protocol, PW (pulse width, in attached image) used in PIE has a value:MAX(0.265Tari, 2 μs)<=PW<=0.525TariI want to know what range of PW ST25RU3993-HPEV can use.Thank you.
I am referring to the 2:1 balun T6 (BD0810J50100AHF) that transforms the incoming tag response to a 100 differential signal that is fed into ST25RU3993 receiver section at pins MIX_INP (pin 4) & MIX_INN (pin 6).Based on the datasheet of the balun, it...
Dear ST engineers,To my understanding, the use of the power detector component is to help the MCU determine the actual power output from the reader (before entering the antenna). May I kindly check with you the reason behind the selection of the mode...
Could you provide source code of ST25R3916 Discovery graphical user interface Part Number STSW-ST25R010 v1.1.0 (ST25R3916_Discovery_GUI_v1_1_0.exe) ?It will be very useful in order to add specific treatment / tests ...
Posted on July 13, 2018 at 02:03Hi everyone,I have what I hope is a quick question about using an ISO14443A type 2 card with the CR95HF.Page 53 of the CR95HF datasheet shows the output of an anticollision algorithm (copied below). And I've implemen...
Hi,How to calculate the ISO14443-a CRC value(16 bit). Please help me how to get the CRC.ISO14443-A >>> CR95HFDLL_SENDRECEIVE, 300028<< 8015 6A1E4DB17E00004B3592000000000000 9BC3 0800000x9BC3 ISO14443-a CRC valueKind Regards,Merin
I have STM32G070KB MCU connected with M24SR02-Y via I2C and GPO. I have no problem to write some NDEF message through I2C and then read it with my phone app. But what I need is to read actual (!!!) data with my phone. That means I write periodically ...