LPCOpen Platform for LPC112X microcontrollers
112X
LPCOpen Platform for the NXP LPC112X family of Microcontrollers
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chip_112x
pmu_112x.c
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/*
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* @brief LPC11xx PMU chip driver
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2013
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licensor disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#include "
chip.h
"
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/*****************************************************************************
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* Private types/enumerations/variables
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****************************************************************************/
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/*****************************************************************************
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* Public types/enumerations/variables
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****************************************************************************/
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/*****************************************************************************
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* Private functions
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****************************************************************************/
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/*****************************************************************************
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* Public functions
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****************************************************************************/
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/* Enter MCU Sleep mode */
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void
Chip_PMU_SleepState
(
LPC_PMU_T
*pPMU)
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{
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pPMU->
PCON
&= ~
PMU_PCON_DPDEN
;
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Chip_PMU_ClearSleepFlags
(
LPC_PMU
,
PMU_PCON_SLEEPFLAG
|
PMU_PCON_DPDFLAG
);
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SCB->SCR &= ~(1UL << SCB_SCR_SLEEPDEEP_Pos);
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/* Enter sleep mode */
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__WFI();
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}
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/* Enter MCU Deep Sleep mode */
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void
Chip_PMU_DeepSleepState
(
LPC_PMU_T
*pPMU)
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{
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pPMU->
PCON
&= ~
PMU_PCON_DPDEN
;
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Chip_PMU_ClearSleepFlags
(
LPC_PMU
,
PMU_PCON_SLEEPFLAG
|
PMU_PCON_DPDFLAG
);
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SCB->SCR |= (1UL << SCB_SCR_SLEEPDEEP_Pos);
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/* Enter sleep mode */
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__WFI();
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}
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/* Enter MCU Deep Power down mode */
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void
Chip_PMU_DeepPowerDownState
(
LPC_PMU_T
*pPMU)
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{
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pPMU->
PCON
|=
PMU_PCON_DPDEN
;
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Chip_PMU_ClearSleepFlags
(
LPC_PMU
,
PMU_PCON_SLEEPFLAG
|
PMU_PCON_DPDFLAG
);
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SCB->SCR |= (1UL << SCB_SCR_SLEEPDEEP_Pos);
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/* Enter sleep mode */
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__WFI();
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}
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/* Put some of the peripheral in sleep mode */
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void
Chip_PMU_Sleep
(
LPC_PMU_T
*pPMU,
CHIP_PMU_MCUPOWER_T
SleepMode)
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{
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if
(SleepMode ==
PMU_MCU_DEEP_SLEEP
) {
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Chip_PMU_DeepSleepState
(pPMU);
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}
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else
if
(SleepMode ==
PMU_MCU_DEEP_PWRDOWN
) {
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Chip_PMU_DeepPowerDownState
(pPMU);
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}
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else
{
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/* PMU_MCU_SLEEP */
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Chip_PMU_SleepState
(pPMU);
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}
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}
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