/*!
    \file    readme.txt
    \brief   description of running led example

    \version 2017-02-10, V1.0.0, firmware for GD32F30x
    \version 2018-10-10, V1.1.0, firmware for GD32F30x
    \version 2018-12-25, V2.0.0, firmware for GD32F30x
    \version 2020-09-30, V2.1.0, firmware for GD32F30x
*/

/*
    Copyright (c) 2020, GigaDevice Semiconductor Inc.

    Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

    1. Redistributions of source code must retain the above copyright notice, this 
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       may be used to endorse or promote products derived from this software without 
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*/

  This example is based on the GD32307C-EVAL-V1.1 board, it provides a description
of Running_led. After system start-up, firstly, LED2 on, then, LED3 on, four LEDs can 
light periodically.

  On the GD32307C-EVAL-V1.1 board, LED2 connected to PC0, LED3 connected to PC2, LED4
connected to PE0, LED5 connected to PE1.
