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

  this demo is based on the at-start board, in this demo, shows how to use
  the adc repeat mode conversion and use dma loop mode transfer conversion data.
  the trigger source is software
  the convert data as follow:
  - adc1_ordinary_valuetab[0] ---> adc1_channel_4
  - adc1_ordinary_valuetab[1] ---> adc1_channel_5
  - adc1_ordinary_valuetab[2] ---> adc1_channel_6

  for more detailed information. please refer to the application note document AN0093.
