STM32H7 STM32H755IIT cubeMX 6.2.0 Clock error (max 200 Mhz)

[Hans T]

Clock error cubeMX 6.2.0

STM32H755iit STM32H7

STM32CubeMX - STM32 Device Configuration Tool

Version: 6.2.0-RC3 Build: 20210219-1602 (UTC)

STM32Cube FW_H7 V1.9.0

STM32CubeIDE - C/C++ Embedded Development Tools for MCU

Version: 1.6.0.202101291314

I cannot set the source clock frequency to 480 Mhz

cubeMx gives an error message: "Frequentcy searched for is out of range for this VOS range"

However, the VOS0: scale0 is normally set at 480/240 Mhz

It works with cubeMx 610.

[Khouloud ZEMMELI]

Hello @Hans T​ 

Could you please share your ioc file to check the problem ?

Thanks, Khouloud

[Hans T]

yes,,I have send you the IOC files PM

[Hans T · Accepted solution]

I have found the reason about this problem:

The RCC Power Regulator Voltage Scale is default : Scale 3 !

I have set this to scale 0, and its works