Skip to main content
GG.2
Associate II
September 20, 2023
Solved

Mismatch between HAL and Reference Manual on voltage scale max frequencies

I've noticed that the frequencies written in the reference manual are different from the ones used in the HAL.

Is there a good reason they are different? Which ones are correct?

I attached a screenshot from page 407 of the reference manual.
https://www.st.com/resource/en/reference_manual/rm0456-stm32u5-series-armbased-32bit-mcus-stmicroelectronics.pdf

And a screenshot from github stm32u5 HAL stm32u5xx_ll_utils.c

Thank you

This topic has been closed for replies.
KDJEM.1
KDJEM.1Best answer
ST Technical Moderator
March 22, 2024

Hello @GG.2 ,

The issue is fixed in STM32CubeU5 V1.5.0.

Thank you for your contribution in STCommunity.

Kaouthar

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.

3 replies

KDJEM.1
ST Technical Moderator
September 20, 2023

Hello @GG.2 ,

First let me thank you for bringing this issue to our attention.

I will check this issue internally and I will get back to you with more details as soon as possible.

Kaouthar.

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.
KDJEM.1
ST Technical Moderator
September 21, 2023

Hello @GG.2 ,

The RM0456 is correct.

I confirm the issue for stm32u5xx_ll_utils.c driver and I reported internally.

Internal ticket number: 161875 (This is an internal tracking number and is not accessible or usable by customers).

Sorry for any inconvenience and thank you for your contribution in STCommunity :).

Kaouthar

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.
KDJEM.1
KDJEM.1Best answer
ST Technical Moderator
March 22, 2024

Hello @GG.2 ,

The issue is fixed in STM32CubeU5 V1.5.0.

Thank you for your contribution in STCommunity.

Kaouthar

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.