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/** 
  ****************************************************************************** 
  * @file    stm32f4xx_iwdg.h 
  * @author  MCD Application Team 
  * @version V1.4.0 
  * @date    04-August-2014 
  * @brief   This file contains all the functions prototypes for the IWDG  
  *          firmware library. 
  ****************************************************************************** 
  * @attention 
  * 
  * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2> 
  * 
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); 
  * You may not use this file except in compliance with the License. 
  * You may obtain a copy of the License at: 
  * 
  *        http://www.st.com/software_license_agreement_liberty_v2 
  * 
  * Unless required by applicable law or agreed to in writing, software  
  * distributed under the License is distributed on an "AS IS" BASIS,  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
  * See the License for the specific language governing permissions and 
  * limitations under the License. 
  * 
  ****************************************************************************** 
  */ 
 
/* Define to prevent recursive inclusion -------------------------------------*/ 
#ifndef __STM32F4xx_IWDG_H 
#define __STM32F4xx_IWDG_H 
 
#ifdef __cplusplus 
 extern "C" { 
#endif 
 
/* Includes ------------------------------------------------------------------*/ 
#include "stm32f4xx.h" 
 
/** @addtogroup STM32F4xx_StdPeriph_Driver 
  * @{ 
  */ 
 
/** @addtogroup IWDG 
  * @{ 
  */ 
 
/* Exported types ------------------------------------------------------------*/ 
/* Exported constants --------------------------------------------------------*/ 
 
/** @defgroup IWDG_Exported_Constants 
  * @{ 
  */ 
   
/** @defgroup IWDG_WriteAccess 
  * @{ 
  */ 
#define IWDG_WriteAccess_Enable     ((uint16_t)0x5555) 
#define IWDG_WriteAccess_Disable    ((uint16_t)0x0000) 
#define IS_IWDG_WRITE_ACCESS(ACCESS) (((ACCESS) == IWDG_WriteAccess_Enable) || \ 
                                      ((ACCESS) == IWDG_WriteAccess_Disable)) 
/** 
  * @} 
  */ 
 
/** @defgroup IWDG_prescaler  
  * @{ 
  */ 
#define IWDG_Prescaler_4            ((uint8_t)0x00) 
#define IWDG_Prescaler_8            ((uint8_t)0x01) 
#define IWDG_Prescaler_16           ((uint8_t)0x02) 
#define IWDG_Prescaler_32           ((uint8_t)0x03) 
#define IWDG_Prescaler_64           ((uint8_t)0x04) 
#define IWDG_Prescaler_128          ((uint8_t)0x05) 
#define IWDG_Prescaler_256          ((uint8_t)0x06) 
#define IS_IWDG_PRESCALER(PRESCALER) (((PRESCALER) == IWDG_Prescaler_4)  || \ 
                                      ((PRESCALER) == IWDG_Prescaler_8)  || \ 
                                      ((PRESCALER) == IWDG_Prescaler_16) || \ 
                                      ((PRESCALER) == IWDG_Prescaler_32) || \ 
                                      ((PRESCALER) == IWDG_Prescaler_64) || \ 
                                      ((PRESCALER) == IWDG_Prescaler_128)|| \ 
                                      ((PRESCALER) == IWDG_Prescaler_256)) 
/** 
  * @} 
  */ 
 
/** @defgroup IWDG_Flag  
  * @{ 
  */ 
#define IWDG_FLAG_PVU               ((uint16_t)0x0001) 
#define IWDG_FLAG_RVU               ((uint16_t)0x0002) 
#define IS_IWDG_FLAG(FLAG) (((FLAG) == IWDG_FLAG_PVU) || ((FLAG) == IWDG_FLAG_RVU)) 
#define IS_IWDG_RELOAD(RELOAD) ((RELOAD) <= 0xFFF) 
/** 
  * @} 
  */ 
 
/** 
  * @} 
  */ 
 
/* Exported macro ------------------------------------------------------------*/ 
/* Exported functions --------------------------------------------------------*/ 
 
/* Prescaler and Counter configuration functions ******************************/ 
void IWDG_WriteAccessCmd(uint16_t IWDG_WriteAccess); 
void IWDG_SetPrescaler(uint8_t IWDG_Prescaler); 
void IWDG_SetReload(uint16_t Reload); 
void IWDG_ReloadCounter(void); 
 
/* IWDG activation function ***************************************************/ 
void IWDG_Enable(void); 
 
/* Flag management function ***************************************************/ 
FlagStatus IWDG_GetFlagStatus(uint16_t IWDG_FLAG); 
 
#ifdef __cplusplus 
} 
#endif 
 
#endif /* __STM32F4xx_IWDG_H */ 
 
/** 
  * @} 
  */ 
 
/** 
  * @} 
  */ 
 
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/