/*!
    \file  readme.txt
    \brief description of GPIO_Keyboard_Polling_mode demo
*/

/*
    Copyright (C) 2017 GigaDevice

    2017-07-28, V1.0.0, demo for GD32F30x
*/

  This demo is based on the GD32307C-EVAL-V1.0 board. On the board, the Tamper key 
connected to PC13 and the LED2 connected to PC0. It provides a description to 
use the key to control the LED by the polling mode. The user can toggle the output 
state of LED2 by pressing the Tamper key.