1 /** 2 ****************************************************************************** 3 * @file stm32f4xx_wwdg.h 4 * @author MCD Application Team 5 * @version V1.6.1 6 * @date 21-October-2015 7 * @brief This file contains all the functions prototypes for the WWDG firmware 8 * library. 9 ****************************************************************************** 10 * @attention 11 * 12 * <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2> 13 * 14 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); 15 * You may not use this file except in compliance with the License. 16 * You may obtain a copy of the License at: 17 * 18 * http://www.st.com/software_license_agreement_liberty_v2 19 * 20 * Unless required by applicable law or agreed to in writing, software 21 * distributed under the License is distributed on an "AS IS" BASIS, 22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 23 * See the License for the specific language governing permissions and 24 * limitations under the License. 25 * 26 ****************************************************************************** 27 */ 28 29 /* Define to prevent recursive inclusion -------------------------------------*/ 30 #ifndef __STM32F4xx_WWDG_H 31 #define __STM32F4xx_WWDG_H 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /* Includes ------------------------------------------------------------------*/ 38 #include "stm32f4xx.h" 39 40 /** @addtogroup STM32F4xx_StdPeriph_Driver 41 * @{ 42 */ 43 44 /** @addtogroup WWDG 45 * @{ 46 */ 47 48 /* Exported types ------------------------------------------------------------*/ 49 /* Exported constants --------------------------------------------------------*/ 50 51 /** @defgroup WWDG_Exported_Constants 52 * @{ 53 */ 54 55 /** @defgroup WWDG_Prescaler 56 * @{ 57 */ 58 59 #define WWDG_Prescaler_1 ((uint32_t)0x00000000) 60 #define WWDG_Prescaler_2 ((uint32_t)0x00000080) 61 #define WWDG_Prescaler_4 ((uint32_t)0x00000100) 62 #define WWDG_Prescaler_8 ((uint32_t)0x00000180) 63 #define IS_WWDG_PRESCALER(PRESCALER) (((PRESCALER) == WWDG_Prescaler_1) || \ 64 ((PRESCALER) == WWDG_Prescaler_2) || \ 65 ((PRESCALER) == WWDG_Prescaler_4) || \ 66 ((PRESCALER) == WWDG_Prescaler_8)) 67 #define IS_WWDG_WINDOW_VALUE(VALUE) ((VALUE) <= 0x7F) 68 #define IS_WWDG_COUNTER(COUNTER) (((COUNTER) >= 0x40) && ((COUNTER) <= 0x7F)) 69 70 /** 71 * @} 72 */ 73 74 /** 75 * @} 76 */ 77 78 /* Exported macro ------------------------------------------------------------*/ 79 /* Exported functions --------------------------------------------------------*/ 80 81 /* Function used to set the WWDG configuration to the default reset state ****/ 82 void WWDG_DeInit(void); 83 84 /* Prescaler, Refresh window and Counter configuration functions **************/ 85 void WWDG_SetPrescaler(uint32_t WWDG_Prescaler); 86 void WWDG_SetWindowValue(uint8_t WindowValue); 87 void WWDG_EnableIT(void); 88 void WWDG_SetCounter(uint8_t Counter); 89 90 /* WWDG activation function ***************************************************/ 91 void WWDG_Enable(uint8_t Counter); 92 93 /* Interrupts and flags management functions **********************************/ 94 FlagStatus WWDG_GetFlagStatus(void); 95 void WWDG_ClearFlag(void); 96 97 #ifdef __cplusplus 98 } 99 #endif 100 101 #endif /* __STM32F4xx_WWDG_H */ 102 103 /** 104 * @} 105 */ 106 107 /** 108 * @} 109 */ 110 111 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 112