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SImple question #ifndef __STM32F100_Dicovery_H

Question asked by delos_reyes.kristian on Jan 18, 2013
Latest reply on Jan 18, 2013 by Andrew Neil
what is this for

/**
  ******************************************************************************
  * @file    STM32vldiscovery.h
  * @author  MCD Application Team
  * @version V1.0.0
  * @date    09/13/2010
  * @brief   Header file for STM32vldiscovery.c module.
  ******************************************************************************
  * @copy
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2>
  */
 
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F100_Dicovery_H
#define __STM32F100_Dicovery_H


//this one, is see this in every header... what is their function?

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "STM32f10x.h"

/** @addtogroup Utilities
  * @{
  */
 
/** @addtogroup STM32vldiscovery

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