LPCOpen Platform for LPC112X microcontrollers  112X
LPCOpen Platform for the NXP LPC112X family of Microcontrollers
pmu_112x.c
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1 /*
2  * @brief LPC11xx PMU chip driver
3  *
4  * @note
5  * Copyright(C) NXP Semiconductors, 2013
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 #include "chip.h"
33 
34 /*****************************************************************************
35  * Private types/enumerations/variables
36  ****************************************************************************/
37 
38 /*****************************************************************************
39  * Public types/enumerations/variables
40  ****************************************************************************/
41 
42 /*****************************************************************************
43  * Private functions
44  ****************************************************************************/
45 
46 /*****************************************************************************
47  * Public functions
48  ****************************************************************************/
49 
50 /* Enter MCU Sleep mode */
52 {
53  pPMU->PCON &= ~PMU_PCON_DPDEN;
55  SCB->SCR &= ~(1UL << SCB_SCR_SLEEPDEEP_Pos);
56 
57  /* Enter sleep mode */
58  __WFI();
59 }
60 
61 /* Enter MCU Deep Sleep mode */
63 {
64  pPMU->PCON &= ~PMU_PCON_DPDEN;
66  SCB->SCR |= (1UL << SCB_SCR_SLEEPDEEP_Pos);
67 
68  /* Enter sleep mode */
69  __WFI();
70 }
71 
72 /* Enter MCU Deep Power down mode */
74 {
75  pPMU->PCON |= PMU_PCON_DPDEN;
77  SCB->SCR |= (1UL << SCB_SCR_SLEEPDEEP_Pos);
78 
79  /* Enter sleep mode */
80  __WFI();
81 }
82 
83 /* Put some of the peripheral in sleep mode */
85 {
86  if (SleepMode == PMU_MCU_DEEP_SLEEP) {
88  }
89  else if (SleepMode == PMU_MCU_DEEP_PWRDOWN) {
91  }
92  else {
93  /* PMU_MCU_SLEEP */
94  Chip_PMU_SleepState(pPMU);
95  }
96 }