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Ishan_Padaliya
Visitor II
June 2, 2025
Solved

STPMIC2 nvm Flash from stm32mp257-ev1 board

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.
PatrickF
PatrickFBest answer
ST Employee
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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2 replies

Vincenzo
Vincenzo
ST Employee
June 3, 2025

Hello Ishan,

take a look on STM32CubeProgrammer software description - User manual

Vincenzo_0-1748925409374.png

Regards,

Vincenzo

 

PatrickF
PatrickFBest answer
ST Employee
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.

In order to give better visibility on the answered topics, please click on 'Best Answer' on the reply which solved your issue or answered your question.Tip of the day: Try Sidekick STM32 AI agent
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