STM32N6xxx SMPS internal , external

[Danilo Frigerio]

Hi Everybody

1) There are some technical o specific reasons, that I was not able to find in the various documentations, to use external SMPS for VDDCORE insted of the internal one ?
2) Working on NUCLEO-N675X0-Q, to configure various bridge for internal SMPS, documentation report to remove R103.
But if this, VDDA1V8 is missing and board doesn't work.
I remove and install all bridge as reported in the documentation (UM3417) , just I left R103 ON, only in this way the board work.
Regards
Danilo

 

[TDK]

Details are in here:

Getting started with hardware development for STM32N6 MCUs - Application note

Specifically:

Make note of the timing restrictions between VDD/VDDCORE mentioned in there.