159 lines
4.6 KiB
C
159 lines
4.6 KiB
C
|
/**********************************************************************
|
||
|
|
* $Id$ lpc_exti.h 2011-06-02
|
||
|
|
*//**
|
||
|
|
* @file lpc_exti.h
|
||
|
|
* @brief Contains all macro definitions and function prototypes
|
||
|
|
* support for External Interrupt firmware library on LPC
|
||
|
|
* @version 1.0
|
||
|
|
* @date 02. June. 2011
|
||
|
|
* @author NXP MCU SW Application Team
|
||
|
|
*
|
||
|
|
* Copyright(C) 2011, NXP Semiconductor
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
***********************************************************************
|
||
|
|
* Software that is described herein is for illustrative purposes only
|
||
|
|
* which provides customers with programming information regarding the
|
||
|
|
* products. This software is supplied "AS IS" without any warranties.
|
||
|
|
* NXP Semiconductors assumes no responsibility or liability for the
|
||
|
|
* use of the software, conveys no license or title under any patent,
|
||
|
|
* copyright, or mask work right to the product. NXP Semiconductors
|
||
|
|
* reserves the right to make changes in the software without
|
||
|
|
* notification. NXP Semiconductors also make no representation or
|
||
|
|
* warranty that such application will be suitable for the specified
|
||
|
|
* use without further testing or modification.
|
||
|
|
* Permission to use, copy, modify, and distribute this software and its
|
||
|
|
* documentation is hereby granted, under NXP Semiconductors'
|
||
|
|
* relevant copyright in the software, without fee, provided that it
|
||
|
|
* is used in conjunction with NXP Semiconductors microcontrollers. This
|
||
|
|
* copyright, permission, and disclaimer notice must appear in all copies of
|
||
|
|
* this code.
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
/* Peripheral group ----------------------------------------------------------- */
|
||
|
|
/** @defgroup EXTI EXTI (External Interrupt)
|
||
|
|
* @ingroup LPC_CMSIS_FwLib_Drivers
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __LPC_EXTI_H_
|
||
|
|
#define __LPC_EXTI_H_
|
||
|
|
|
||
|
|
/* Includes ------------------------------------------------------------------- */
|
||
|
|
#include "LPC407x_8x_177x_8x.h"
|
||
|
|
#include "lpc_types.h"
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C"
|
||
|
|
{
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Private Macros ------------------------------------------------------------- */
|
||
|
|
/** @defgroup EXTI_Private_Macros EXTI Private Macros
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
/*********************************************************************//**
|
||
|
|
* Macro defines for EXTI control register
|
||
|
|
**********************************************************************/
|
||
|
|
#define EXTI_EINT0_BIT_MARK 0x01
|
||
|
|
#define EXTI_EINT1_BIT_MARK 0x02
|
||
|
|
#define EXTI_EINT2_BIT_MARK 0x04
|
||
|
|
#define EXTI_EINT3_BIT_MARK 0x08
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Private Macros ------------------------------------------------------------- */
|
||
|
|
/** @defgroup EXTI_Public_Types EXTI Public Types
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief EXTI external interrupt line option
|
||
|
|
*/
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
EXTI_EINT0, /*!< External interrupt 0, P2.10 */
|
||
|
|
EXTI_EINT1, /*!< External interrupt 0, P2.11 */
|
||
|
|
EXTI_EINT2, /*!< External interrupt 0, P2.12 */
|
||
|
|
EXTI_EINT3 /*!< External interrupt 0, P2.13 */
|
||
|
|
} EXTI_LINE_ENUM;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief EXTI mode option
|
||
|
|
*/
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
EXTI_MODE_LEVEL_SENSITIVE, /*!< Level sensitivity is selected */
|
||
|
|
EXTI_MODE_EDGE_SENSITIVE /*!< Edge sensitivity is selected */
|
||
|
|
} EXTI_MODE_ENUM;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief EXTI polarity option
|
||
|
|
*/
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE, /*!< Low active or falling edge sensitive
|
||
|
|
depending on pin mode */
|
||
|
|
EXTI_POLARITY_HIGH_ACTIVE_OR_RISING_EDGE /*!< High active or rising edge sensitive
|
||
|
|
depending on pin mode */
|
||
|
|
} EXTI_POLARITY_ENUM;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief EXTI Initialize structure
|
||
|
|
*/
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
/** Select external interrupt pin (EINT0, EINT1, EINT 2, EINT3) */
|
||
|
|
EXTI_LINE_ENUM EXTI_Line;
|
||
|
|
|
||
|
|
/** Choose between Level-sensitivity or Edge sensitivity */
|
||
|
|
EXTI_MODE_ENUM EXTI_Mode;
|
||
|
|
|
||
|
|
/** If EXTI mode is level-sensitive: this element use to select low or high active level
|
||
|
|
if EXTI mode is polarity-sensitive: this element use to select falling or rising edge */
|
||
|
|
EXTI_POLARITY_ENUM EXTI_polarity;
|
||
|
|
|
||
|
|
}EXTI_InitTypeDef;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
/* Public Functions ----------------------------------------------------------- */
|
||
|
|
/** @defgroup EXTI_Public_Functions EXTI Public Functions
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
void EXTI_Init(void);
|
||
|
|
void EXTI_DeInit(void);
|
||
|
|
|
||
|
|
void EXTI_Config(EXTI_InitTypeDef *EXTICfg);
|
||
|
|
void EXTI_SetMode(EXTI_LINE_ENUM EXTILine, EXTI_MODE_ENUM mode);
|
||
|
|
void EXTI_SetPolarity(EXTI_LINE_ENUM EXTILine, EXTI_POLARITY_ENUM polarity);
|
||
|
|
void EXTI_ClearEXTIFlag(EXTI_LINE_ENUM EXTILine);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* __LPC_EXTI_H_ */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* --------------------------------- End Of File ------------------------------ */
|