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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Why did frequency generated by ST25RU3993 stop? I sent direct commands: 90h, 91h, 92h and filled FIFO register for "Select" command and TXlength = 9 bytes with CRC

After trying to send any of these commands(90h, 91h, 92h) from ST25RU3993 it freezes and its carrier frequency disappears. If I try sending them using step debug, controller doesn't freeze, but I also can't know what did it send. Reg 38h = 0, so shou...

SOsip.1 by Associate
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Resolved! STEVAL-SMARTAG1 - graphs not working

I tried to programm STEVAL-SMARTAG1 with sample software provided on the webpage (https://www.st.com/content/st_com/en/products/embedded-software/mcu-mpu-embedded-software/stm32-embedded-software/stm32-ode-function-pack-sw/fp-sns-smartag1.html) versi...

MOpal.1 by Associate
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Resolved! STEVAL-SMARTAG1 uses USART2_TX for debug (as SWO)

I'm doing something very similar, and using the steval-smartag1 as a jumping off point. I'd like to be able to use the UART as a second SPI device, but I'm concerned that doing that would interfere with the debug interface.On a related subject, can t...

CTayl.2 by Associate
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  • 1 replies
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Resolved! About 3993 inventory gb29768 label rate problem

Hello!Dear ST technician!About 3993 ST25RU3993 Reader Suite software, inventory GB29768 tags, encountered a problem, want to consult:Now use STM32L476 +3933 chip, test the official source code (see the bottom picture), use ST25RU3993 Reader Suite,Inv...

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伟民 by Associate II
  • 716 Views
  • 2 replies
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Resolved! Can't build st25dv discovery example NFC project

Hi, I have a st25dv discovery kit for NFC application. I have downloaded stm32cubeIde and I opened the project example. I have this error when I build the project :ST25DV_DISCOVERY_FW_V1.1.2/Projects/ST25DV-Discovery/Demonstrations/ST25DVDemo/Src/fw_...

SSAVO.1 by Associate
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  • 3 replies
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Resolved! Which programmer do I use?

I have a STEVAL-SMARTAG1 eval board. The documents say to use an ST-Link/V2, but the ST-Link/V3 product page says that it's now the only supported programmer. So...which one should I get?! :)

CTayl.2 by Associate
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  • 3 replies
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