HSI clock and baudrate ?

[antonius]

Dear Members,

I changed my clock from MSI to HSI but my SPI and UART baudrate becoming wrong,

What do I miss here ?

thanks

[S.Ma]

Sometime it's easier to check on the datasheet alternate function table.

Anyway only one alternate "output" can be activated (it's a mux) at anytime.

Do check the GPIO registers in debug mode HW register view.

Check on GPIO MODER and AF registers for this pin.

[antonius]

On 32MHz, on UART1, I still get the same issue ??

[antonius]

which one is related with UART3 ? APB1 or APB2 ?

[antonius]

probably External crystal may help ?

[antonius]

USART3 register when 32MHz

[antonius]

Core=2097152, 2 MHz

HCLK=2097152

APB1=2097152

APB2=2097152