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

/*
    Copyright (C) 2017 GigaDevice

    2018-04-23, V1.0.0, demo for GD32F30x
*/

  This demo is based on the GD32307E-START-V1.0 board. On the board, the user key 
connectes to PC6 and the LED1 connects to PA0. It provides a method to use the 
key for controlling the LED by the interrupt. The user can toggle the output state
of LED1 by pressing the user key.