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/********************************** (C) COPYRIGHT *******************************
* File Name : ch32f20x_exti.h
* Author : WCH
* Version : V1.0.0
* Date : 2021/08/08
* Description : This file contains all the functions prototypes for the
* EXTI firmware library.
*******************************************************************************/
#ifndef __CH32F20x_EXTI_H
#define __CH32F20x_EXTI_H
#ifdef __cplusplus
extern "C" {
#endif
#include "ch32f20x.h"
/* EXTI mode enumeration */
typedef enum
{
EXTI_Mode_Interrupt = 0x00,
EXTI_Mode_Event = 0x04
}EXTIMode_TypeDef;
/* EXTI Trigger enumeration */
typedef enum
{
EXTI_Trigger_Rising = 0x08,
EXTI_Trigger_Falling = 0x0C,
EXTI_Trigger_Rising_Falling = 0x10
}EXTITrigger_TypeDef;
/* EXTI Init Structure definition */
typedef struct
{
uint32_t EXTI_Line; /* Specifies the EXTI lines to be enabled or disabled.
This parameter can be any combination of @ref EXTI_Lines */
EXTIMode_TypeDef EXTI_Mode; /* Specifies the mode for the EXTI lines.
This parameter can be a value of @ref EXTIMode_TypeDef */
EXTITrigger_TypeDef EXTI_Trigger; /* Specifies the trigger signal active edge for the EXTI lines.
This parameter can be a value of @ref EXTIMode_TypeDef */
FunctionalState EXTI_LineCmd; /* Specifies the new state of the selected EXTI lines.
This parameter can be set either to ENABLE or DISABLE */
}EXTI_InitTypeDef;
/* EXTI_Lines */
#define EXTI_Line0 ((uint32_t)0x00001) /* External interrupt line 0 */
#define EXTI_Line1 ((uint32_t)0x00002) /* External interrupt line 1 */
#define EXTI_Line2 ((uint32_t)0x00004) /* External interrupt line 2 */
#define EXTI_Line3 ((uint32_t)0x00008) /* External interrupt line 3 */
#define EXTI_Line4 ((uint32_t)0x00010) /* External interrupt line 4 */
#define EXTI_Line5 ((uint32_t)0x00020) /* External interrupt line 5 */
#define EXTI_Line6 ((uint32_t)0x00040) /* External interrupt line 6 */
#define EXTI_Line7 ((uint32_t)0x00080) /* External interrupt line 7 */
#define EXTI_Line8 ((uint32_t)0x00100) /* External interrupt line 8 */
#define EXTI_Line9 ((uint32_t)0x00200) /* External interrupt line 9 */
#define EXTI_Line10 ((uint32_t)0x00400) /* External interrupt line 10 */
#define EXTI_Line11 ((uint32_t)0x00800) /* External interrupt line 11 */
#define EXTI_Line12 ((uint32_t)0x01000) /* External interrupt line 12 */
#define EXTI_Line13 ((uint32_t)0x02000) /* External interrupt line 13 */
#define EXTI_Line14 ((uint32_t)0x04000) /* External interrupt line 14 */
#define EXTI_Line15 ((uint32_t)0x08000) /* External interrupt line 15 */
#define EXTI_Line16 ((uint32_t)0x10000) /* External interrupt line 16 Connected to the PVD Output */
#define EXTI_Line17 ((uint32_t)0x20000) /* External interrupt line 17 Connected to the RTC Alarm event */
#define EXTI_Line18 ((uint32_t)0x40000) /* External interrupt line 18 Connected to the USB Device/USB OTG FS
Wakeup from suspend event */
#define EXTI_Line19 ((uint32_t)0x80000) /* External interrupt line 19 Connected to the Ethernet Wakeup event */
#define EXTI_Line20 ((uint32_t)0x100000) /* External interrupt line 20 Connected to the USBHD Wakeup event */
void EXTI_DeInit(void);
void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct);
void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct);
void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line);
FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line);
void EXTI_ClearFlag(uint32_t EXTI_Line);
ITStatus EXTI_GetITStatus(uint32_t EXTI_Line);
void EXTI_ClearITPendingBit(uint32_t EXTI_Line);
#ifdef __cplusplus
}
#endif
#endif
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