STM32MP157A-DK1 USART3

[SAman.1]

Hy i wanted to ask how i can set the clockspeed on my Device tree so the USART3 will work with 10MB/s my device tree looks at them moment like this:

&usart3 {

pinctrl-names = "default", "sleep", "idle";

pinctrl-0 = <&usart3_pins_b>;

pinctrl-1 = <&usart3_sleep_pins_b>;

pinctrl-2 = <&usart3_idle_pins_b>;

uart-has-rtscts;

status = "okay";

};

at the moment is is on automatic. I wanted to try it out with the CubeMX but when i want to set the Paramter settings on the Linux context it always tells me that there is no configuration.

[PatrickF]

Hi,

with Linux, UART configuration like baud-rate is defined at run time, usually by the application.

see :

https://wiki.st.com/stm32mpu/wiki/USART_internal_peripheral

https://wiki.st.com/stm32mpu/wiki/Serial_TTY_device_tree_configuration

https://wiki.st.com/stm32mpu/wiki/Serial_TTY_overview

Regards.

[SAman.1]

OK i thought thers also a way to configurate it in the device tree.