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Filipx.87
Filipx.87
Associate II
May 29, 2022
Question

Problem with pin status after power on

  • May 29, 2022
  • 1 reply
  • 692 views

Hi, I am solving the backlight of the display, which is controlled by a pin, but the problem is the state between power on and initialization, when the display flashes before the pin is initialized. This happens with both positive and negative control logic. It's OK after pressing the reset button, problem only after power on. Is there a solution to stabilize this?0693W00000NqoXVQAZ.png

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    1 reply

    Simon V.
    Simon V.
    ST Employee
    May 30, 2022

    Hello,

    May you please share more information about the STM32 reference you are using and on which pin the signal TFT_BL is connected please ?

    It could be relative to the bootloader activation during the power on.

    Thanks in advance for your answer,

    Regards,

    Simon

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