STM32H755bit getting stuck at WR_FLAG_VOSRDY

[urbito]

Hello,

I have been working in a project with the mentioned MCU and by now i have been working it with SMPS_SUPPLY and VOS3 to work at 100Mhz Both CM7 and CM4.

By now days i need to boost it up to 400Mhz and 200Mhz, so i need to change from VOS3 to VOS1 but it is not available in my CUBEMx version 6.8.0 for all types of Supply i only have VOS3 and VOS2.

Not only that issue, if i for example try to use VOS2, i get stuck at:

while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {} but when changing back to VOS3, it works fine.

I tryed VOS2 to change from 100Mhz to 150Mhz in both, but got the mentioned issue.

I found this thread: STM32H747 freezes waiting for VOSRDY - STMicroelectronics Community

Where some ppl said that is possible to not use this, but it feels strange...

Also found this one: STM32CubeMX 6.8.1 and STM32CubeIDE 1.12.1 released - STMicroelectronics Community

where it is fixed an issue with the version of Mx and IDE i am working with, but not for H7 Series But F7 serie. 

Probably i am going to try it but i do not have much faith since is for F7 and not for H7. I would commend if i get any kind of result.

Hope to hear from you soon community 🙂

Greetings

[FBL]

Hello @urbito,

Are you using customized board?  Which oscillator are you using?

[urbito]

hello @FBL yes i am using a customized board with an external oscilator similar to the smt32h745 disco board.

[FBL]

Hello @urbito 

Would you share a minimum project to reproduce the behavior in order to identify the root cause of the issue?
Thanks

[urbito · Accepted solution]

Hello Belaid, 

I have found one incongruent configuration due missunderstand between me and hw developer.

my hw have the circuit showed in green and i was configuring the sw to work with the one showed in red ( the stm32h745 dev board).

hope this helps anyone in future.

greetings

[FBL]

Hi @urbito 

Thank you for your feedback.