/*!
\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.