STM32H755 Power Regulator Voltage scaling issue

[Damon-03]

I am using STM32H755 microcontroller and STM32CubeMX V6.14.0 for my development.

I am not able to set the clock frequency to 480MHz. Whenever I do so, I receive power regulator voltage scaling error.

The product revision used by me is rev.V. 

The RCC parameter works only when the D1CPRE is set to 240MHz. And my requirement is 480MHz.

Is there any solution to run the microcontroller at 480MHz.

[Souhaib MAZHOUD]

Hello @Damon-03 

Thank you for your contribution

I am currently checking this internally and will get back to you as soon as possible.

BR,

Souhaib

[Imen.D]

Hello @Damon-03 ,

Which device selected?

I think you have the same issue as reported in this post: Solved: Power Regulator Voltage scaling and SysClock issue - STMicroelectronics Community

Check if you have selected an "industrial temperature range" device (For STM32H755xxx3 the voltage regulator output can be set only to VOS2 or VOS3 in Run mode)

So, you can select STM32H755xxx6 for "regular" devices and set the Voltage Scale to 0 - which you can reach 480MHz.