#!/usr/bin/env python
# -*- coding: utf-8 -*-

import iolib
import time

io = iolib.ftio()
io.open(0xff) # bitmask
io.read_id()
io.poke(0xaa) # value
time.sleep(1)
io.poke(0x55) # value
ret,pins=io.peek()
if (ret==0):
	print '%02x' % pins
io.close()