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Explorer II
August 19, 2022
Solved

about IRQ pin in X-NUCLEO-NFC06A1

  • August 19, 2022
  • 2 replies
  • 965 views

Dear Sir,

When I read the document of X-NUCLEO-NFC06A1, I found that the IRQ pin is not

connected to CN5. I wonder the demo sample provided in

ST25NFC_Embedded_Lib_ST25R3916_1.4.0\Projects\STM32L476RG-Nucleo\Applications\X-NUCLEO-NFC06A1 do not use IRQ interrupt?

best regards

Dai Sai

    This topic has been closed for replies.
    Best answer by Brian TIDAL

    Hi,

    IRQ_MCU is by default routed to CN8.1.

    CN5.2 is only an alternate routing (ST9 is open in the factory configuration).

    See Table 1 in UM2615.

    ST25NFC_Embedded_Lib_ST25R3916_1.4.0\Projects\STM32L476RG-Nucleo\Applications\X-NUCLEO-NFC06A1 uses IRQ_MCU on CN8.1/PA0

    Rgds

    BT

    2 replies

    Technical Moderator
    August 22, 2022

    Hi,

    IRQ_MCU is by default routed to CN8.1.

    CN5.2 is only an alternate routing (ST9 is open in the factory configuration).

    See Table 1 in UM2615.

    ST25NFC_Embedded_Lib_ST25R3916_1.4.0\Projects\STM32L476RG-Nucleo\Applications\X-NUCLEO-NFC06A1 uses IRQ_MCU on CN8.1/PA0

    Rgds

    BT

    DSai.1Author
    Explorer II
    August 23, 2022

    Dear Brian,

    thank you for your reply.

    I got it.

    best regards

    Dai Sai