new IDE&MX setting baud rate wrong at stm32h743vit

[bjrobert]

Hi,

I have updated IDE and MX, and found that the usart buad rate setting is wrong: setting 115200, but actually baud rate is 57600 (half setting). Is it new ST firmware error or not? I am not sure that the other clock settings is right. Please help to check. Thanks.

here is the attached is my usart_test, software.

[Mahmoud Ben Romdhane]

Hello @bjrobert ,

First let me thank you for posting and welcome to the ST Community.

I reproduced your request, and I found that the baud rate value is equal to 115200 after generating the code knowing that I am using the latest version of STM32CubeMX and STM32CubeIDE.

Best Regards.

Mahmoud

[ArekS]

@Mahmoud Ben Romdhane  I am observing exactly same issue with the new project generated from scratch, for STM32H757. In IOC file  I have configured baudrate 115200, in generated code baudrate is also set as 11500, but real baudrate measured with oscilloscope is half of this - 57600.

Sw versions  I'm using:

- STM32CubeIDE Version: 1.17.0

- STM32CubeMX Version: 6.13.0-RC5

- STM32CubeH7 Firmware Package V1.12.1

Just found this topic:

https://community.st.com/t5/stm32cubemx-mcus/hal-rcc-getpclk2freq-returns-incorrect-value-when-d2ppre2-is-set/m-p/753382/highlight/true#M30487

Seems to be root cause of baud rate issue.

Regards

Arek