What are the changes to be done on the STM32H745i Disco board to work with LDO

[mridul_xalten]

New question moved from this original thread.

Thanks for the quick response.

So basically the HW is configured in SMPS. So in order to obtain 480MHz, what changes should i do to the hardware. Or is there any way i could do it without changing the hardware?
In SW, I will select LDO with scaling VOS0 or is there anything else i could do. 

Also i checked the threads you mentioned, It is indeed similar issue but not exactly the same as for me it works fine when im running the cores m7 and m4 in 400MHz and 200Mhz respectively. I chose "PWR_DIRECT_SMPS_SUPPLY" while running at 400MHz and it works fine. 

Im confused about the HW changes required to run at 480MHz or a configuration that could make it run in 480MHz without any hardware change.

 
Thanks again.

[SofLit]

This is a new question it will be moved to a new thread.

[SofLit · Accepted solution]

Hello,

Changing the hardware is a must to have LDO configuration.

From RM0399  as you can see each power configuration has its own HW setup:

From the STM32H745i Disco board schematic / page 4:

Hope that answers your question.