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CQT
Associate
Sep 15, 2025 5:12 AM UTC
Question

Interface Firmware FAILED to reset/halt the target MCU

I am connecting NUCLEO-H743ZI2 to PC via USB, it gives the following error:

The interface firmware FAILED to reset/halt the target MCU STM-32

List possible solutions to the above error.

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3 replies

Amel NASRI
Amel NASRI
ST Technical Moderator
Sep 15, 2025 4:10 PM UTC

Hi @CQT ,

A similar question was asked here. Please refer to it.

The article How to solve connection errors when connecting and programming the STM32 target board may be helpful as well in your case.

-Amel

To give better visibility on the answered topics, please click on "Best Answer" on the reply which solved your issue or answered your question.
    CQTAuthor
    Associate
    Sep 16, 2025 6:59 AM UTC

    Many thanks for the reply, let me check and revert.

    Andrew Neil
    Andrew Neil
    Super User
    Sep 15, 2025 4:52 PM UTC

    welcome to the forum.

    Some more details are needed - please see  How to write your question to maximize your chances to find a solution for best results.

     

    Please describe what, exactly, you were doing when the message appeared.

    Show screenshots and/or logs.

    What tool(s) were you using - including versions ?

    What Host system?

    Has the board previously been working?

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
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