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Visitor II
January 19, 2021
Solved

MCU STM32F091VCT6 is in continuous reset mode.

  • January 19, 2021
  • 2 replies
  • 794 views

I'm using STM32F091VCT6 controller. I'm tried to BOOT it. MCU does not stand by mode (either low power mode or continuous reset mode). I'm tried by increasing delay on VCC & POR by using 10uf cap of NRST pin also I'm tried weak pull down on BOOT0 pin(47K to 10K register value) also please suggest how I will check exact behave of controller ??

    This topic has been closed for replies.
    Best answer by TDK

    NRST should have a 0.1uF capacitor on it, nothing more. BOOT0 needs pulled down. If you do that, and apply power, the chip will start executing code.

    You can always attach a debugger to see where the chip is at.

    2 replies

    TDKAnswer
    Super User
    January 19, 2021

    NRST should have a 0.1uF capacitor on it, nothing more. BOOT0 needs pulled down. If you do that, and apply power, the chip will start executing code.

    You can always attach a debugger to see where the chip is at.

    DubeyAuthor
    Visitor II
    January 20, 2021

    Thanks TDK.