text: #!/usr/bin/python
  # -*- coding:utf-8 -*-
  import smbus
  import time
  
  address = 0x48
  cmd = 0x40
  value = 0
  
  bus = smbus.SMBus(1)
  while True:
  	bus.write_byte_data(address,cmd,value)
  	value += 1
  	if value == 256:
  		value =0
  	print("AOUT:%3d" %value)
  	time.sleep(0.01)
  
  
  