Writes kayboard input to JLink RTT buffer #0.

    This method is a loop that blocks waiting on stdin. When enter is pressed,
    LF and NUL bytes are added to the input and transmitted as a byte list.
    If the JLink is disconnected, it will exit gracefully. If any other
    exceptions are raised, they will be caught and re-raised after interrupting
    the main thread.

    Args:
      jlink (pylink.JLink): The JLink to write to.

    Raises:
      Exception on error.

def write_rtt(jlink):
    """Writes kayboard input to JLink RTT buffer #0.

    This method is a loop that blocks waiting on stdin. When enter is pressed,
    LF and NUL bytes are added to the input and transmitted as a byte list.
    If the JLink is disconnected, it will exit gracefully. If any other
    exceptions are raised, they will be caught and re-raised after interrupting
    the main thread.

    Args:
      jlink (pylink.JLink): The JLink to write to.

    Raises:
      Exception on error.
    """
    try:
        while jlink.connected():
            bytes = list(bytearray(input(), "utf-8") + b"\x0A\x00")
            bytes_written = jlink.rtt_write(0, bytes)
    except Exception:
        print("IO write thread exception, exiting...")
        thread.interrupt_main()
        raise