#!/usr/bin/python
# -*- coding: utf-8 -*-
import serial
import time
ser = serial.Serial('/dev/ttymxc0', 115200, timeout=None, rtscts=True, parity=serial.PARITY_EVEN)
while(1):
  line = ser.read(20)
  print(line)
  time.sleep(1)
  ser.write(b'12345678901234567890\n')
  time.sleep(0.5)
ser.close()