/**
  **************************************************************************
  * @file     readme.txt 
  * @brief    readme
  **************************************************************************
  */

  this demo provides a description of how to use the usb otg host peripheral.
  
  when an usb device is attached to the host port, the device is enumerated and
  checked whether it cdc device.
  for more detailed information, please refer to the application note document AN0094.

