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

  this demo is based on the ht32f49163_sk board, in this demo, shows how to use the 
  tamper detection, the rising edge of the pc13 pin triggers an tamper event.
  
  attention: system need to pre configrue when pc13 need to be used!  the 
  pre-configuration code is in SystemInit() function.
