/*!
    \file  readme.txt
    \brief description of DAC0_EXTI_trigger example
*/

/*
    Copyright (C) 2017 GigaDevice

    2017-02-10, V1.0.0, firmware for GD32F30x
*/

  This example is based on the GD32F30x-EVAL board, it shows how to use EXTI line 9 
to trigger DAC0. The DAC0 output pin is configured PA4. Connect one key (PA0 for 
example) and GPIO PE9 with Dupont line. Press the key (Wakeup for example) for many 
times, the variations of the wave can be observed through the oscilloscope.
