/**
  **************************************************************************
  * @file     readme.txt 
  * @version  v2.0.0
  * @date     2021-11-26
  * @brief    readme
  **************************************************************************
  */

  this demo is based on the at-start board, executing this projectŁ¬step1/step2
  should be follow.
  step1 : enbale ap mode by icp tool. user should set boot memory to ap mode
          with icp tool.
  step2 : executing this demo, in this project, test buffer will be wiriten to
          boot memory and read from same address, then compare them. if the test
          is passed, the three leds will turn on.




