/*!
    \file  readme.txt
    \brief description of the comparator switch demo
*/

/*
    Copyright (C) 2017 GigaDevice

    2017-06-06, V1.0.0, firmware for GD32F3x0
*/

  This demo is based on the GD32350R-EVAL board, it shows how to configure the
comparator input switch. In this demo, input 3.3V to PA4 ,turn on comparator 
input switch,then PA4 will be connected to CMP1_IP.After system start-up, enable
comparator,then LED2 is on.

  Connect PA4 to +3V3.