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Rflor
Rflor
Associate II
Apr 30, 2025 2:40 PM UTC
Solved

STM32H7 Nucleo-144 boards (MB1364) for programming external board

Hi, I'm using ST for the first time, I have a NUCLEO-H753ZI, and I cant find in the user manual if it is possible to program an external MCU using the Embedded STLINK-V3E, can someone help me with this ?

Thanks

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TDK
TDKBest answer
Apr 30, 2025 5:14 PM UTC

Yes. Connect GND, SWDIO, SWCLK at a minimum. Disconnect them from the on-board MCU. Download the schematic from the nucleo board product page under CAD resources to see where these traces go.

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4 replies

TDK
TDK
Apr 30, 2025 2:50 PM UTC

It's technically possible, but not really intended and isn't easy to do. It would be better to use a standalone programmer.

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    Rflor
    RflorAuthor
    Associate II
    Apr 30, 2025 4:08 PM UTC

    what do I need? if separate the jtag/swd signals from the on board MCU and connect them to the external MCU it could wokr?

    TDK
    TDKBest answer
    Apr 30, 2025 5:14 PM UTC

    Yes. Connect GND, SWDIO, SWCLK at a minimum. Disconnect them from the on-board MCU. Download the schematic from the nucleo board product page under CAD resources to see where these traces go.

    "If you feel a post has answered your question, please click ""Accept as Solution""."
      Rflor
      RflorAuthor
      Associate II
      Apr 30, 2025 5:18 PM UTC

      Thanks for your help, I will try it

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