LPCOpen Platform  v1.03
LPCOpen Platform for NXP LPC Microcontrollers
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sysctl_13xx.c
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1 /*
2  * @brief LPC13XX System Control functions
3  *
4  * Copyright(C) NXP Semiconductors, 2012
5  * All rights reserved.
6  *
7  * Software that is described herein is for illustrative purposes only
8  * which provides customers with programming information regarding the
9  * LPC products. This software is supplied "AS IS" without any warranties of
10  * any kind, and NXP Semiconductors and its licensor disclaim any and
11  * all warranties, express or implied, including all implied warranties of
12  * merchantability, fitness for a particular purpose and non-infringement of
13  * intellectual property rights. NXP Semiconductors assumes no responsibility
14  * or liability for the use of the software, conveys no license or rights under any
15  * patent, copyright, mask work right, or any other intellectual property rights in
16  * or to any products. NXP Semiconductors reserves the right to make changes
17  * in the software without notification. NXP Semiconductors also makes no
18  * representation or warranty that such application will be suitable for the
19  * specified use without further testing or modification.
20  *
21  * Permission to use, copy, modify, and distribute this software and its
22  * documentation is hereby granted, under NXP Semiconductors' and its
23  * licensor's relevant copyrights in the software, without fee, provided that it
24  * is used in conjunction with NXP Semiconductors microcontrollers. This
25  * copyright, permission, and disclaimer notice must appear in all copies of
26  * this code.
27  */
28 
29 #include "chip.h"
30 
31 /*****************************************************************************
32  * Private types/enumerations/variables
33  ****************************************************************************/
34 
35 /* PDSLEEPCFG register mask */
36 #if defined(CHIP_LPC1343)
37 #if defined(CHIP_LPC1300L)
38 #define PDSLEEPUSEMASK 0x000018B7 /* For CHIP_LPC1300L only */
39 #else
40 #define PDSLEEPUSEMASK 0x00000FB7
41 #endif /* defined (CHIP_LPC1300L) */
42 #else
43 #define PDSLEEPUSEMASK 0x00000007
44 #endif /* defined(CHIP_LPC1343) */
45 #define PDSLEEPMASKTMP (SYSCTL_DEEPSLP_BOD_PD | SYSCTL_DEEPSLP_WDTOSC_PD)
46 #define PDSLEEPMASK ((PDSLEEPUSEMASK) &~(PDSLEEPMASKTMP))
47 
48 /* PDWAKECFG register mask */
49 #if defined(CHIP_LPC1347)
50 #define PDWAKEUPUSEMASK 0x00000800
51 #else
52 #define PDWAKEUPUSEMASK 0x0000F800
53 #endif
54 #define PDWAKEUPMASKTMP 0x000005FF
55 
56 /* PDRUNCFG register mask */
57 #if defined(CHIP_LPC1347)
58 #define PDRUNCFGUSEMASK 0x0000E800
59 #else
60 #define PDRUNCFGUSEMASK 0x0000F800
61 #endif
62 #define PDRUNCFGMASKTMP 0x000005FF
63 
64 /*****************************************************************************
65  * Public types/enumerations/variables
66  ****************************************************************************/
67 
68 /*****************************************************************************
69  * Private functions
70  ****************************************************************************/
71 
72 /*****************************************************************************
73  * Public functions
74  ****************************************************************************/
75 
76 /* Setup deep sleep behaviour for power down */
77 void Chip_SYSCTL_SetDeepSleepPD(uint32_t sleepmask)
78 {
79  /* Update new value */
80  LPC_SYSCTL->PDSLEEPCFG = PDSLEEPMASK | (sleepmask & PDSLEEPMASKTMP);
81 }
82 
83 /* Setup wakeup behaviour from deep sleep */
84 void Chip_SYSCTL_SetWakeup(uint32_t wakeupmask)
85 {
86  /* Update new value */
87  LPC_SYSCTL->PDWAKECFG = PDWAKEUPUSEMASK | (wakeupmask & PDWAKEUPMASKTMP);
88 }
89 
90 /* Power down one or more blocks or peripherals */
91 void Chip_SYSCTL_PowerDown(uint32_t powerdownmask)
92 {
93  uint32_t pdrun;
94 
95  pdrun = LPC_SYSCTL->PDRUNCFG & PDRUNCFGMASKTMP;
96  pdrun |= (powerdownmask & PDRUNCFGMASKTMP);
97 
98  LPC_SYSCTL->PDRUNCFG = (pdrun | PDRUNCFGUSEMASK);
99 }
100 
101 /* Power up one or more blocks or peripherals */
102 void Chip_SYSCTL_PowerUp(uint32_t powerupmask)
103 {
104  uint32_t pdrun;
105 
106  pdrun = LPC_SYSCTL->PDRUNCFG & PDRUNCFGMASKTMP;
107  pdrun &= ~(powerupmask & PDRUNCFGMASKTMP);
108 
109  LPC_SYSCTL->PDRUNCFG = (pdrun | PDRUNCFGUSEMASK);
110 }