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