code: def read_rtt(jlink):
      
      try:
          while jlink.connected():
              terminal_bytes = jlink.rtt_read(0, 1024)
              if terminal_bytes:
                  sys.stdout.write("".join(map(chr, terminal_bytes)))
                  sys.stdout.flush()
              time.sleep(0.1)
      except Exception:
          print("IO read thread exception, exiting...")
          thread.interrupt_main()
          raise
docs: Reads the JLink RTT buffer #0 at 10Hz and prints to stdout.
  
      This method is a polling loop against the connected JLink unit. If
      the JLink is disconnected, it will exit. Additionally, if any exceptions
      are raised, they will be caught and re-raised after interrupting the
      main thread.
  
      sys.stdout.write and sys.stdout.flush are used since target terminals
      are expected to transmit newlines, which may or may not line up with the
      arbitrarily-chosen 1024-byte buffer that this loop uses to read.
  
      Args:
        jlink (pylink.JLink): The JLink to read.
  
      Raises:
        Exception on error.