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M
mossaab daiki
Visitor II
June 29, 2018
Solved

control reader command

  • June 29, 2018
  • 2 replies
  • 1314 views
Posted on June 29, 2018 at 12:55

Hello, Can I configure ST25 reader to send only 13.56 MHz carrier ? if So how to do that?

    This topic has been closed for replies.
    Best answer by Ulysses HERNIOSUS
    Posted on July 10, 2018 at 14:28

    Hi,

    please have a look into the DS (

    https://www.st.com/resource/en/datasheet/st25r3911b.pdf

     :( Search for 'en' 'I_osc', etc. 

    Transparent mode has 0xdc, no 16 bits!

    Regards, Ulysses

    2 replies

    U
    Ulysses HERNIOSUS
    Technical Moderator
    July 3, 2018
    Posted on July 03, 2018 at 08:21

    Hi Mossaab,

    You just need to enable the Oscillator (en bit in register op control), wait for I_osc, and then set tx_en => constant wave.

    Regards, Ulysses

    M
    mossaab daikiAuthor
    Visitor II
    July 3, 2018
    Posted on July 03, 2018 at 09:40

    Hi Ulysses,

    thanks for the reply do you recommend a specifi ST25 reader ?

    regards

    Mossaab

    U
    Ulysses HERNIOSUS
    Technical Moderator
    July 9, 2018
    Posted on July 09, 2018 at 10:24

    Hi Mossaab, 

    to date there is only one chip available on the boards in the web shop: ST25R3911B. You can either get it as ST25R311B-DISCO with a PC software or as a nucleo shield: X-NUCLEO_NFC05A1.

    ST25R3912 .. ST25R3915 are compatible variants.

    For your own developments the nucleo shield might be more suited.

    Regards, Ulysses

    U
    Ulysses HERNIOSUSAnswer
    Technical Moderator
    July 10, 2018
    Posted on July 10, 2018 at 14:28

    Hi,

    please have a look into the DS (

    https://www.st.com/resource/en/datasheet/st25r3911b.pdf

     :( Search for 'en' 'I_osc', etc. 

    Transparent mode has 0xdc, no 16 bits!

    Regards, Ulysses

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