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lpc17xx_exti.h
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1 /***********************************************************************/
21 /* Peripheral group ----------------------------------------------------------- */
27 #ifndef LPC17XX_EXTI_H_
28 #define LPC17XX_EXTI_H_
29 
30 /* Includes ------------------------------------------------------------------- */
31 #include "LPC17xx.h"
32 #include "lpc_types.h"
33 
34 
35 #ifdef __cplusplus
36 extern "C"
37 {
38 #endif
39 
40 
41 /* Private Macros ------------------------------------------------------------- */
45 /*********************************************************************/
48 #define EXTI_EINT0_BIT_MARK 0x01
49 #define EXTI_EINT1_BIT_MARK 0x02
50 #define EXTI_EINT2_BIT_MARK 0x04
51 #define EXTI_EINT3_BIT_MARK 0x08
52 
57 /* Private Macros ------------------------------------------------------------- */
65 typedef enum
66 {
67  EXTI_EINT0,
68  EXTI_EINT1,
69  EXTI_EINT2,
70  EXTI_EINT3
71 } EXTI_LINE_ENUM;
72 
76 typedef enum
77 {
78  EXTI_MODE_LEVEL_SENSITIVE,
79  EXTI_MODE_EDGE_SENSITIVE
80 } EXTI_MODE_ENUM;
81 
85 typedef enum
86 {
87  EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE,
89  EXTI_POLARITY_HIGH_ACTIVE_OR_RISING_EDGE
91 } EXTI_POLARITY_ENUM;
92 
96 typedef struct
97 {
98  EXTI_LINE_ENUM EXTI_Line;
100  EXTI_MODE_ENUM EXTI_Mode;
102  EXTI_POLARITY_ENUM EXTI_polarity;
105 }EXTI_InitTypeDef;
106 
107 
113 /* Public Functions ----------------------------------------------------------- */
118 void EXTI_Init(void);
119 void EXTI_DeInit(void);
120 
121 void EXTI_Config(EXTI_InitTypeDef *EXTICfg);
122 void EXTI_SetMode(EXTI_LINE_ENUM EXTILine, EXTI_MODE_ENUM mode);
123 void EXTI_SetPolarity(EXTI_LINE_ENUM EXTILine, EXTI_POLARITY_ENUM polarity);
124 void EXTI_ClearEXTIFlag(EXTI_LINE_ENUM EXTILine);
125 
126 
132 #ifdef __cplusplus
133 }
134 #endif
135 
136 
137 #endif /* LPC17XX_EXTI_H_ */
138 
143 /* --------------------------------- End Of File ------------------------------ */