ST25 NFC/RFID tags and readers

Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.

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Resolved! ST25RU3993-HPEV PIE encoding pulse width (PW)

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.​

0693W00000DmUHZQA3.jpg
MYoun.4 by Associate II
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  • 1 replies
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Resolved! Use of balun in ST25RU3993-HPEV design

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...

TNgo.1 by Associate II
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Resolved! Source code of ST25R3916 Discovery graphical user interface Part Number STSW-ST25R010 v1.1.0 (ST25R3916_Discovery_GUI_v1_1_0.exe)

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 ...

ben_hw_sw by Associate II
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Resolved! ISO 14443A - CR95HF - and the CRC bit

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...

Resolved! CRC Polynomial

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

Mjohn.1 by Associate
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Resolved! ST NFC Sensor app: SmarTag Response Error

I am using an ST25TV02K-AD6H3 NFC tag IC with a printed antenna for RFID communication. As per the NFC tag antenna design guideline, the required antenna inductance is 5.95 uH. I designed an antenna using the ST eDesign Suite software with dimensions...

VSoni.1 by Associate III
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