text: 
  #ifndef COSOLE_SERIAL_H
  #define COSOLE_SERIAL_H
  
  #include <uart.h>
  
  typedef void (*uart_rx_callback_t)(uint8_t input);
  
  void serial_console_init(void);
  int getchar_b11(void);
  int getchar_timeout(unsigned int sec);
  void register_uart_callback(uart_rx_callback_t callback_func);
  
  #endif /* COSOLE_SERIAL_H */