/* host: USART1, the ST-LINK's virtual COM port. target: USART2 on PD5/PD6, * the CN9 UART block, wired to the other board's modem UART. Both at the * modem's 230400. */ / { aliases { bridge-host = &usart1; bridge-target = &usart2; }; }; &usart1 { current-speed = <230400>; }; &usart2 { current-speed = <230400>; fifo-enable; };