| LPCOpen Platform v1.03 LPCOpen Platform for NXP LPC Microcontrollers

- Main Page
- Modules
- Data Structures
- Files
- Related Pages

- File List
- Globals

All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
syscon_8xx.c
Go to the documentation of this file.
1 /*
2 * @brief LPC8xx System & Control driver
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 licenser 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 #include "chip.h"
33
34 /*****************************************************************************
35 * Private types/enumerations/variables
36 ****************************************************************************/
37
38 /* PDSLEEPCFG register mask */
39 #define PDSLEEPWRMASK (0x0000FFB8)
40 #define PDSLEEPDATMASK (0x00000048)
41
42 /* PDWAKECFG and PDRUNCFG register masks */
43 #define PDWAKEUPWRMASK (0x00006D10)
44 #define PDWAKEUPDATMASK (0x000080EF)
45
46 /*****************************************************************************
47 * Public types/enumerations/variables
48 ****************************************************************************/
49
50 /*****************************************************************************
51 * Private functions
52 ****************************************************************************/
53
54 /*****************************************************************************
55 * Public functions
56 ****************************************************************************/
57
58 /* Setup deep sleep behaviour for power down */
59 void Chip_SYSCTL_SetDeepSleepPD(uint32_t sleepmask)
60 {
61 /* Update new value */
62 LPC_SYSCTL->PDSLEEPCFG = PDSLEEPWRMASK | (sleepmask & PDSLEEPDATMASK);
63 }
64
65 /* Setup wakeup behaviour from deep sleep */
66 void Chip_SYSCTL_SetWakeup(uint32_t wakeupmask)
67 {
68 /* Update new value */
69 LPC_SYSCTL->PDAWAKECFG = PDWAKEUPWRMASK | (wakeupmask & PDWAKEUPDATMASK);
70 }
71
72 /* Power down one or more blocks or peripherals */
73 void Chip_SYSCTL_PowerDown(uint32_t powerdownmask)
74 {
75 uint32_t pdrun;
76
77 /* Get current power states */
78 pdrun = LPC_SYSCTL->PDRUNCFG & PDWAKEUPDATMASK;
79
80 /* Disable peripheral states by setting high */
81 pdrun |= (powerdownmask & PDWAKEUPDATMASK);
82
83 /* Update power states with required register bits */
84 LPC_SYSCTL->PDRUNCFG = (PDWAKEUPWRMASK | pdrun);
85 }
86
87 /* Power up one or more blocks or peripherals */
88 void Chip_SYSCTL_PowerUp(uint32_t powerupmask)
89 {
90 uint32_t pdrun;
91
92 /* Get current power states */
93 pdrun = LPC_SYSCTL->PDRUNCFG & PDWAKEUPDATMASK;
94
95 /* Enable peripheral states by setting low */
96 pdrun &= ~(powerupmask & PDWAKEUPDATMASK);
97
98 /* Update power states with required register bits */
99 LPC_SYSCTL->PDRUNCFG = (PDWAKEUPWRMASK | pdrun);
100 }