/*!
 * @file       readme.txt
 *
 * @brief      This file is routine instruction
 *
 * @version    V1.0.0
 *
 * @date       2021-09-18
 *
 */
 
 
&par Example Description 

This example describes how to use DOUT for toggling IO.
The IO of LED2 and LED3 is configed to toggle constantly.
The phenomenon of LED2 and LED3 constantly flickered alternately.

&par Hardware and Software environment

  - This example runs on APM32F407 MINI Devices.