Cannot enable SMPS STM32U385RGT6Q

[JVan .3]

The new version of CubeMx (6.15.0) nags me about enabling SMPS mode, and I would like to, but the tool seemingly does not have the capability to do so.

Under PWR->Low Power there's a checkbox for "Power Savings Mode" which other forum posts led me to believe would need to be enabled. I have found two things about this checkbox. 1.) It is already enabled and 2.) You cannot disable it.

Then, under "System Core" -> RCC ->Parameter Settings, there's a "Supply Source" parameter. It has only a "PWR_LDO_SUPPLY" option, and cannot be changed to any other value.

Am I missing something here, or is the tool broken?

[Imen.D]

Hello @JVan .3 

This is known issue reported in this post: STM32U3: Missing SMPS in power supply source, and escalated in the Internal ticket number: 214214.

This issue will be fixed in the coming release of CubeMX.

Thank you for your contributions.

[JVan .3 · Accepted solution]

Okay, great and thank you!