stm32h755 power review

[baselimadt]

Hi,

I am designing a board based on STM32h755zit6 MCU and it's the first time for me working on this MCU, I am trying to simplify the design as possible to avoid any problem in the development, since we are short in time.
I found out that there is a firmware configuration for the power, is there a default configuration so I can make the hardware based on it? right now I made this schematic based on the Nucleo board, but I want to make sure that it's right configuration, Also I have the ST-link 2 is it possible to use it for programming? 

thanks 

Basel 

[SofLit]

Hello,

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@baselimadt wrote:

I did read it in a hurry

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This is something that you need to read in deep and ST provided that documentation for user reference. If the user don't want to refer to it, efforts gone in vain .. 

[baselimadt]

Hi

After reading the chapter, I have decided there is no need for the SMPS, so here is the updated design, can you please check it? do I need to connect VCAP to GND, since in the Nucleo board it is connected to the VFBSMPS which is connected to GND, or the highlighted resistor will be removed? 
thanks

[SofLit]

Hello,

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@baselimadt wrote:

Hi
After reading the chapter, I have decided there is no need for the SMPS,

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-> So as I understood you switched to the LDO config.

Reviewed but not in deep..

-> VLXSMPS needs to be kept floating according to the RM0399 figure 22:

It's an output from the SMPS:

[baselimadt]

ok Done,

What about Vcap DO I need to connect the pins together? I remember working on the STM32f4 there was no need to connect these pins together, only with CAP 2.2uF 

[SofLit · Accepted solution]

Again please review the AN4938 "Getting started with STM32H74xI/G and STM32H75xI/G MCU hardware" development:

And reference design schematics: