STM32 Nucleo-144 (413ZH) USART_2 Printf

[jkasper]

Hello!

I am running the UART_Printf example on my Nucleo and the output to USART3 (default) works fine, but when I change the output to USART2 or USART6, it doesn't send data.

[Tesla DeLorean · Accepted solution]

Ok, but that sounds like a coding or configuration issue, both those USARTs should be functional.

[jkasper]

OK thanks, I see the configuration in main.h in the example.

[JackChien]

Refer UM1974

6.9 USART communication
The USART3 interface available on PD8 and PD9 of the STM32 can be connected either to
ST-LINK or to ST morpho connector. The choice is changed by setting the related solder
bridges. By default the USART3 communication is enabled between the target STM32 and
both the ST-LINK and the ST morpho connector.

Board design only support USART3 for ST-LINK