UART3 communication send and receive data in STM32-U585 B-U585I-IOT02A discovery kit

[amolchor25]

Hi 

I am creating project by enabling uart3, when write some data on UART3 there is no output on UART_Tx pin.

please let me know any configuration m I missing while creating new project.

thanks in advance

Amol Chor

[OlivierR]

Hi,

Does RX and TX output are assigned to PD8 and PD9? (see picture)

Because by default on CubeMX, UART3 RX/TX pins are assigned to PA5/PA7.

What you can do is used in CubeMx is "ctrl + mouse left button" to change these pins.

Olivier

 

[amolchor25 · Accepted solution]

Thanks for reply !!

I have change the status of PH15 pin to high to use UART_3 for PD8 and PD9, it works for me.