Skip to main content
shivangiupadhyay
shivangiupadhyay
Associate II
May 19, 2026
Question

Nucleo-H753Zi - how to implement ethernet with onboard PHY

  • May 19, 2026
  • 2 replies
  • 311 views

Title edited to clarify that the "onboard PHY" refers to a Nucleo-H753ZI

i have may issues related to implement the ethernet on stm32h753zi mcu like i am not able properly configure the mpu regions and linker script and its ethernet.c file ...and also have issue related to ping the static ip...

if any supporting link related to this issue can be provided..

that might be helpful

2 replies

mƎALLEm
mƎALLEm
Technical Moderator
May 19, 2026

Hello,

Please refer to this knowledge base article: How to create a project for STM32H7 with Ethernet and LwIP stack working

and the Github hotspot as well:

https://github.com/stm32-hotspot/STM32H7-LwIP-Examples

it contains an example based on Nucleo-H743 which is compatible with STM32H753ZI

mALLEm_0-1779197426954.png

Hope that helps.

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
    shivangiupadhyay
    shivangiupadhyayAuthor
    Associate II
    May 19, 2026

    both of these mcu have different MPU config. also have different phy mac connection stm32h743zi (mii interface) and stm32h753zi (rmii interface) ..also with the linker script of stm32h743zi on stm32h753zi is not able to ping.... also some other interfaces also stuck with its linker script for eth (which used on stm32h743zi)

    mƎALLEm
    mƎALLEm
    Technical Moderator
    May 19, 2026
    @shivangiupadhyay wrote:

    both of these mcu have different MPU config. also have different phy mac connection stm32h743zi (mii interface) and stm32h753zi (rmii interface) ..also with the linker script of stm32h743zi on stm32h753zi is not able to ping.... also some other interfaces also stuck with its linker script for eth (which used on stm32h743zi)

    The boards are the same, the only difference between STM32H743 and STMH753 is the crypto not used by the ethernet. So the example on Nucleo-H743 should work on Nucleo-H753.

    To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
      Andrew Neil
      Andrew Neil
      Super User
      May 19, 2026
      @shivangiupadhyay wrote:

      how to implement ethernet on stm32h753zi mcu (with onboard phy)

      The stm32h753zi does not have an onboard PHY:

      AndrewNeil_0-1779199596768.png

      https://www.st.com/resource/en/datasheet/stm32h753zi.pdf#page=52

      via: https://www.st.com/en/microcontrollers-microprocessors/stm32h753zi.html

      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.
      shivangiupadhyay
      shivangiupadhyayAuthor
      Associate II
      May 19, 2026

      but it have onboard phy ic and rj45 connector for ethernet cable...

      Andrew Neil
      Andrew Neil
      Super User
      May 19, 2026

      you didn't mention what board you were using!

      It's always important to give details of your hardware - see:

      How to write your question to maximize your chances to find a solution

       

      I'll edit the title to clarify.

      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.
        Terms & ConditionsAccessibility statement