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NUCLEO-F401 to read ST25TV UID

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Rance
Associate III

‎2024-09-26 06:57 AM - last edited on ‎2024-09-26 07:00 AM by

Hi ST Community

I have a ST25TV tag,The UID is E0 02 08 03 8F 65 C9 F5(8bytes)

I use the board of NUCLE0-NFC08A1 and the demo in NFC6 generated by Cube MX.

I can read the relevant information of the card through the SPI provided in the demo and  than print the UID of the card to the serial port（Figure1）,

but I am unable to see the waveform related to the tag's UID on the logic analyzer. Could it be because the UID is encoded during transmission?

I cannot find the corresponding UID in the waveform diagram.

How can I obtain the UID by analyzing the waveform?

 

Figure1：

Rance_0-1727358774182.png

FIFO data:

Rance_1-1727358885913.png

waveform：

Rance_2-1727358937104.png

 

 

 

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11 REPLIES 11
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Rance
Associate III
In response to Brian TIDAL

‎2024-09-29 06:41 PM

Thank you for your response. I have a deeper understanding of FIFO encoding now.

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Ulysses HERNIOSUS
ST Employee
In response to Rance

‎2024-09-30 12:50 AM

Hi Rance,

 

some more reading can also be found in https://community.st.com/t5/st25-nfc-rfid-tags-and-readers/st25r39-problems-with-reading-iso15693/m-p/84627

Ulysses

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