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shyammurali
Associate II
February 27, 2026
Solved

NUCLEO 144 H7 LEGACY for programming an external MCU

  • February 27, 2026
  • 2 replies
  • 405 views

Dear ST team,

I am planning to use STM32H753ZIT6 in my design and also planning to use NUCLEO 144 H7 LEGACY for development activities. Could anyone help me whether I can use the NUCLEO 144 H7 LEGACY board to program the STM MCU which is going to assemble in my board? If possible please let me know how to isolate the on board MCU which is present in the NUCLEO 144 H7 LEGACY board.

Regards
Shyam

Best answer by mƎALLEm

My stand point: 

To my knowledge, the NUCLEO 144 boards having STLINK V2 have been deprecated from awhile for H7 MCUs. The boards now feature STLINK V3. So if you purchase the board from a distributor (unless they do have V2 in an old stock).

If you need a STLINK V2  on a NUCLEO 144 board (that you can use it externally) you can purchase NCULEO-F439 (Not H7 product:(

https://www.st.com/en/evaluation-tools/nucleo-f439zi.html

 

2 replies

mƎALLEm
mƎALLEm
Technical Moderator
February 27, 2026

Hello, @shyammurali and welcome to the St community,

Do you have this exact hardware on your board (ST-LINK V3)?screenshot.png

If yes that's not possible (there is no modification available) to use that ST-LINK to program an external MCU target.

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."
Andrew Neil
Andrew Neil
Super User
February 27, 2026

Does your board have the break-off ST-Link V2.1 part - like this:

Image1.png

If it does, then this applies:

Image2.png

https://www.st.com/resource/en/user_manual/um1974-stm32-nucleo144-boards-mb1137-stmicroelectronics.pdf#page=20

via: https://www.st.com/en/evaluation-tools/nucleo-h743zi.html#documentation

 

However, this has  a number of limitation; a standalone ST-Link is not expensive - I would strongly suggest that you get one!

https://www.st.com/en/development-tools/hardware-debugger-and-programmer-tools-for-stm32.html

 

Be sure not to get a fake/clone!

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.
    mƎALLEm
    mƎALLEm
    Technical Moderator
    February 27, 2026
    @Andrew Neil wrote:

    Does your board have the break-off ST-Link V2.1 part - like this:

    Image1.png

    If it does, then this applies

    Indeed otherwise (my previous post), not possible.

    "To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."
      S
      shyammuraliAuthor
      Associate II
      February 27, 2026

      Hi Meallem, Andrew, 

      Thank you for the quick response.

      I have purchased NUCLEO 144 H7 LEGACY which is having the exact same MCU (STM32H753ZIT6) part which I am planning to use in my design. I haven´t received the NUCLEO board yet but as per user manual details this NUCLEO board have STLINK part on it.

      So if STLINK is there then i need to purchase the programmer for programming the MCU in my design. Am I right?

      Regards
      Shyam

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