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halil
halil
Visitor II
November 3, 2017
Question

stm32f769 VDD12DSI pin

  • November 3, 2017
  • 1 reply
  • 655 views
Posted on November 03, 2017 at 10:36

Hello, I am using stm32f769 bga package. We accidentaly connect VDD12DSI pin to VCAPSDSI pin and connect them to 3.3V VDD. We only gave power to the circuit for a few seconds. Could it damage the MCU? And if I disconnect these two pins and floating, will it work? Do I have to connect them to each other? Is there any way out?

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    1 reply

    Vangelis Fortounas
    Vangelis Fortounas
    Associate II
    November 3, 2017
    Posted on November 03, 2017 at 15:44

    Hello!

    0690X00000608q4QAA.png

    The problem is , VDD12DSI  has a maximum input voltage 1,2V . So yes, the overvoltage on this pin is possible to caused a damage to MIPI-DSI section of chip or an

    extensive damage

    or nothing!.

    The only way to see if you have damage, is to follow first the DataSheet about connection of  theese pins ,  and after to check the functionality of MCU .

    Regards

    vf

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