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Ishan_Padaliya
Visitor II
June 2, 2025
Solved

STPMIC2 nvm Flash from stm32mp257-ev1 board

  • June 2, 2025
  • 2 replies
  • 401 views

Hello There,

We are using the board stm32mp257-ev1. Which has "STPMIC25A".

I want to change voltage of LDO2 and BUCK4 on boot permanently (NVM of stpmic25A).

Can i change these supply from stm32mp257-ev1 board itself ? If yes, How ?  

Ishan_Padaliya_0-1748856618984.png

Thanks and Regards,
Ishan

 

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

    Hi,

    See also https://wiki.st.com/stm32mpu/wiki/STM32PRGFW-UTIL

     

    Beware that LDO2 and BUCK4 are already used to supply respectively eMMC and VDDIO (i.e. required for the board boot). Changing this might lead to bricked board.

    eMMC core supply must always be in the 2.7V - 3.6V range (as per JEDEC) and board VDDIO should be 3V - 3.6V on this board (not possible to use 1.8V range on this board due to conflict with some interfaces and embedded STLINK voltages.).

     

    Regards.

    2 replies

    V
    Vincenzo
    ST Employee
    June 3, 2025

    Hello Ishan,

    take a look on STM32CubeProgrammer software description - User manual

    Vincenzo_0-1748925409374.png

    Regards,

    Vincenzo

     

    P
    PatrickFAnswer
    Technical Moderator
    June 3, 2025

    Hi,

    See also https://wiki.st.com/stm32mpu/wiki/STM32PRGFW-UTIL

     

    Beware that LDO2 and BUCK4 are already used to supply respectively eMMC and VDDIO (i.e. required for the board boot). Changing this might lead to bricked board.

    eMMC core supply must always be in the 2.7V - 3.6V range (as per JEDEC) and board VDDIO should be 3V - 3.6V on this board (not possible to use 1.8V range on this board due to conflict with some interfaces and embedded STLINK voltages.).

     

    Regards.

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