Linux-console on UART for STM32MP25 / STLinux

[HMüll.4]

Hi,

for evaluation I'm running STLinux on a STM32MP257F-DK board currently.

I found the Linux console is available on one of the USB-ports with the default configuration of that operating system.

Quick question: is that Linux console also available on some plain UART-port for that development kit (or for the STM32MP25 in general)? If yes: which port is used?

Thanks!

[GatienC]

Hi,

What exactly is "plain UART port"?

You can change which UART you wish to use in the board device tree file of the Linux kernel I guess (serial aliases). That stated, you can check the board schematics to know what is available on the GPIO expansion connector for the STM32MP257F-DK. I already checked and saw that USART6 is available on it :) (TX pin8 and RX pin10) so feel free to use them!

I hope this helps,

Gatien

[GatienC]

Please have a look at https://community.st.com/t5/stm32-mpus-embedded-software-and/stm32mp257-usart-and-serc-exception/td-p/794150 as well