1 /** 2 ****************************************************************************** 3 * @file stm32f4xx_exti.h 4 * @author MCD Application Team 5 * @version V1.4.0 6 * @date 04-August-2014 7 * @brief This file contains all the functions prototypes for the EXTI firmware 8 * library. 9 ****************************************************************************** 10 * @attention 11 * 12 * <h2><center>© COPYRIGHT 2014 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_EXTI_H 31 #define __STM32F4xx_EXTI_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 EXTI 45 * @{ 46 */ 47 48 /* Exported types ------------------------------------------------------------*/ 49 50 /** 51 * @brief EXTI mode enumeration 52 */ 53 54 typedef enum 55 { 56 EXTI_Mode_Interrupt = 0x00, 57 EXTI_Mode_Event = 0x04 58 }EXTIMode_TypeDef; 59 60 #define IS_EXTI_MODE(MODE) (((MODE) == EXTI_Mode_Interrupt) || ((MODE) == EXTI_Mode_Event)) 61 62 /** 63 * @brief EXTI Trigger enumeration 64 */ 65 66 typedef enum 67 { 68 EXTI_Trigger_Rising = 0x08, 69 EXTI_Trigger_Falling = 0x0C, 70 EXTI_Trigger_Rising_Falling = 0x10 71 }EXTITrigger_TypeDef; 72 73 #define IS_EXTI_TRIGGER(TRIGGER) (((TRIGGER) == EXTI_Trigger_Rising) || \ 74 ((TRIGGER) == EXTI_Trigger_Falling) || \ 75 ((TRIGGER) == EXTI_Trigger_Rising_Falling)) 76 /** 77 * @brief EXTI Init Structure definition 78 */ 79 80 typedef struct 81 { 82 uint32_t EXTI_Line; /*!< Specifies the EXTI lines to be enabled or disabled. 83 This parameter can be any combination value of @ref EXTI_Lines */ 84 85 EXTIMode_TypeDef EXTI_Mode; /*!< Specifies the mode for the EXTI lines. 86 This parameter can be a value of @ref EXTIMode_TypeDef */ 87 88 EXTITrigger_TypeDef EXTI_Trigger; /*!< Specifies the trigger signal active edge for the EXTI lines. 89 This parameter can be a value of @ref EXTITrigger_TypeDef */ 90 91 FunctionalState EXTI_LineCmd; /*!< Specifies the new state of the selected EXTI lines. 92 This parameter can be set either to ENABLE or DISABLE */ 93 }EXTI_InitTypeDef; 94 95 /* Exported constants --------------------------------------------------------*/ 96 97 /** @defgroup EXTI_Exported_Constants 98 * @{ 99 */ 100 101 /** @defgroup EXTI_Lines 102 * @{ 103 */ 104 105 #define EXTI_Line0 ((uint32_t)0x00001) /*!< External interrupt line 0 */ 106 #define EXTI_Line1 ((uint32_t)0x00002) /*!< External interrupt line 1 */ 107 #define EXTI_Line2 ((uint32_t)0x00004) /*!< External interrupt line 2 */ 108 #define EXTI_Line3 ((uint32_t)0x00008) /*!< External interrupt line 3 */ 109 #define EXTI_Line4 ((uint32_t)0x00010) /*!< External interrupt line 4 */ 110 #define EXTI_Line5 ((uint32_t)0x00020) /*!< External interrupt line 5 */ 111 #define EXTI_Line6 ((uint32_t)0x00040) /*!< External interrupt line 6 */ 112 #define EXTI_Line7 ((uint32_t)0x00080) /*!< External interrupt line 7 */ 113 #define EXTI_Line8 ((uint32_t)0x00100) /*!< External interrupt line 8 */ 114 #define EXTI_Line9 ((uint32_t)0x00200) /*!< External interrupt line 9 */ 115 #define EXTI_Line10 ((uint32_t)0x00400) /*!< External interrupt line 10 */ 116 #define EXTI_Line11 ((uint32_t)0x00800) /*!< External interrupt line 11 */ 117 #define EXTI_Line12 ((uint32_t)0x01000) /*!< External interrupt line 12 */ 118 #define EXTI_Line13 ((uint32_t)0x02000) /*!< External interrupt line 13 */ 119 #define EXTI_Line14 ((uint32_t)0x04000) /*!< External interrupt line 14 */ 120 #define EXTI_Line15 ((uint32_t)0x08000) /*!< External interrupt line 15 */ 121 #define EXTI_Line16 ((uint32_t)0x10000) /*!< External interrupt line 16 Connected to the PVD Output */ 122 #define EXTI_Line17 ((uint32_t)0x20000) /*!< External interrupt line 17 Connected to the RTC Alarm event */ 123 #define EXTI_Line18 ((uint32_t)0x40000) /*!< External interrupt line 18 Connected to the USB OTG FS Wakeup from suspend event */ 124 #define EXTI_Line19 ((uint32_t)0x80000) /*!< External interrupt line 19 Connected to the Ethernet Wakeup event */ 125 #define EXTI_Line20 ((uint32_t)0x00100000) /*!< External interrupt line 20 Connected to the USB OTG HS (configured in FS) Wakeup event */ 126 #define EXTI_Line21 ((uint32_t)0x00200000) /*!< External interrupt line 21 Connected to the RTC Tamper and Time Stamp events */ 127 #define EXTI_Line22 ((uint32_t)0x00400000) /*!< External interrupt line 22 Connected to the RTC Wakeup event */ 128 129 #define IS_EXTI_LINE(LINE) ((((LINE) & (uint32_t)0xFF800000) == 0x00) && ((LINE) != (uint16_t)0x00)) 130 131 #define IS_GET_EXTI_LINE(LINE) (((LINE) == EXTI_Line0) || ((LINE) == EXTI_Line1) || \ 132 ((LINE) == EXTI_Line2) || ((LINE) == EXTI_Line3) || \ 133 ((LINE) == EXTI_Line4) || ((LINE) == EXTI_Line5) || \ 134 ((LINE) == EXTI_Line6) || ((LINE) == EXTI_Line7) || \ 135 ((LINE) == EXTI_Line8) || ((LINE) == EXTI_Line9) || \ 136 ((LINE) == EXTI_Line10) || ((LINE) == EXTI_Line11) || \ 137 ((LINE) == EXTI_Line12) || ((LINE) == EXTI_Line13) || \ 138 ((LINE) == EXTI_Line14) || ((LINE) == EXTI_Line15) || \ 139 ((LINE) == EXTI_Line16) || ((LINE) == EXTI_Line17) || \ 140 ((LINE) == EXTI_Line18) || ((LINE) == EXTI_Line19) || \ 141 ((LINE) == EXTI_Line20) || ((LINE) == EXTI_Line21) ||\ 142 ((LINE) == EXTI_Line22)) 143 144 /** 145 * @} 146 */ 147 148 /** 149 * @} 150 */ 151 152 /* Exported macro ------------------------------------------------------------*/ 153 /* Exported functions --------------------------------------------------------*/ 154 155 /* Function used to set the EXTI configuration to the default reset state *****/ 156 void EXTI_DeInit(void); 157 158 /* Initialization and Configuration functions *********************************/ 159 void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct); 160 void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct); 161 void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line); 162 163 /* Interrupts and flags management functions **********************************/ 164 FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line); 165 void EXTI_ClearFlag(uint32_t EXTI_Line); 166 ITStatus EXTI_GetITStatus(uint32_t EXTI_Line); 167 void EXTI_ClearITPendingBit(uint32_t EXTI_Line); 168 169 #ifdef __cplusplus 170 } 171 #endif 172 173 #endif /* __STM32F4xx_EXTI_H */ 174 175 /** 176 * @} 177 */ 178 179 /** 180 * @} 181 */ 182 183 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 184