Diff: lpc17xx_exti.h

Revision:

0:84d7747641aa

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lpc17xx_exti.h	Sun Mar 20 18:45:15 2011 +0000
@@ -0,0 +1,143 @@
+/***********************************************************************//**
+ * @file		lpc17xx_exti.h
+ * @brief		Contains all macro definitions and function prototypes
+ * 				support for External interrupt firmware library on LPC17xx
+ * @version		2.0
+ * @date		21. May. 2010
+ * @author		NXP MCU SW Application Team
+ **************************************************************************
+ * 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.
+ **************************************************************************/
+
+/* Peripheral group ----------------------------------------------------------- */
+/** @defgroup EXTI EXTI
+ * @ingroup LPC1700CMSIS_FwLib_Drivers
+ * @{
+ */
+
+#ifndef LPC17XX_EXTI_H_
+#define LPC17XX_EXTI_H_
+
+/* Includes ------------------------------------------------------------------- */
+#include "LPC17xx.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
+{
+	EXTI_LINE_ENUM EXTI_Line; /*!<Select external interrupt pin (EINT0, EINT1, EINT 2, EINT3) */
+
+	EXTI_MODE_ENUM EXTI_Mode; /*!< Choose between Level-sensitivity or Edge sensitivity */
+
+	EXTI_POLARITY_ENUM EXTI_polarity; /*!< 	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_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 /* LPC17XX_EXTI_H_ */
+
+/**
+ * @}
+ */
+
+/* --------------------------------- End Of File ------------------------------ */