board/board.c: In function 'rt_hw_board_init':
board/board.c:26:5: warning: implicit declaration of function 'rt_hw_tick_init'; did you mean 'rt_hw_stack_init'? [-Wimplicit-function-declaration]
26 | rt_hw_tick_init();
| ^~~~~~~~~~~~~~~
| rt_hw_stack_init
board/board.c:29:5: warning: implicit declaration of function 'rt_hw_uart_init'; did you mean 'rt_hw_board_init'? [-Wimplicit-function-declaration]
29 | rt_hw_uart_init();
| ^~~~~~~~~~~~~~~
| rt_hw_board_init