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wkt_001.h
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1 /*
2 * @brief Self Wakeup Timer (WKT) registers and functions
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2012
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32 #ifndef __WKT_001_H_
33 #define __WKT_001_H_
34
35 #include "sys_config.h"
36 #include "cmsis.h"
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
51 typedef struct {
52 __IO uint32_t CTRL;
53 uint32_t Reserved[2];
54 __IO uint32_t COUNT;
55 } IP_WKT_001_T;
56
60 #define WKT_CTRL_CLKSEL ((uint32_t) (1 << 0))
61 #define WKT_CTRL_ALARMFLAG ((uint32_t) (1 << 1))
62 #define WKT_CTRL_CLEARCTR ((uint32_t) (1 << 2))
67 typedef enum IP_WKT_CLKSRC {
68 IP_WKT_CLKSRC_DIVIRC = 0,
69 IP_WKT_CLKSRC_10KHZ = 1
70 } IP_WKT_CLKSRC_T;
71
77 STATIC INLINE void IP_WKT_ClearIntStatus(IP_WKT_001_T *pWKT)
78 {
79 if ( pWKT->CTRL & WKT_CTRL_ALARMFLAG ) {
80 pWKT->CTRL |= WKT_CTRL_ALARMFLAG;
81 }
82 }
83
89 STATIC INLINE void IP_WKT_Stop(IP_WKT_001_T *pWKT)
90 {
91 pWKT->CTRL |= WKT_CTRL_CLEARCTR;
92 }
93
100 STATIC INLINE void IP_WKT_SetClockSource(IP_WKT_001_T *pWKT, IP_WKT_CLKSRC_T clkSrc)
101 {
102 if (clkSrc == IP_WKT_CLKSRC_10KHZ) {
103 pWKT->CTRL |= WKT_CTRL_CLKSEL; /* using Low Power clock 10kHz */
104 }
105 else {
106 pWKT->CTRL &= ~WKT_CTRL_CLKSEL; /* using Divided IRC clock 750kHz */
107 }
108 }
109
116 STATIC INLINE void IP_WKT_Start(IP_WKT_001_T *pWKT, uint32_t cntVal)
117 {
118 pWKT->COUNT = cntVal;
119 }
120
125 #ifdef __cplusplus
126 }
127 #endif
128
129 #endif /* __WKT_001_H_ */