STPMIC2 nvm Flash from stm32mp257-ev1 board

[Ishan_Padaliya]

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 ?  

Thanks and Regards,
Ishan

[Vincenzo]

Hello Ishan,

take a look on STM32CubeProgrammer software description - User manual

Regards,

Vincenzo

[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.