text: /*
   * Copyright (c) 2006-2021, RT-Thread Development Team
   *
   * SPDX-License-Identifier: Apache-2.0
   *
   * Change Logs:
   * Date           Author       Notes
   * 2020-06-27     AHTYDHD      the first version
   */
  
  #include <rtthread.h>
  #include <rtdevice.h>
  
  int main(void)
  {
      int count = 1;
      /* set LED0 pin mode to output */
      rt_pin_mode(2, PIN_MODE_OUTPUT);
  
      while (count++)
      {
          rt_pin_write(2, PIN_HIGH);
          rt_thread_mdelay(500);
          rt_pin_write(2, PIN_LOW);
          rt_thread_mdelay(500);
      }
  
      return RT_EOK;
  }
  