110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
|
/*
|
||
|
|
* @brief LPC8xx PMU chip driver
|
||
|
|
*
|
||
|
|
* @note
|
||
|
|
* Copyright(C) NXP Semiconductors, 2012
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* @par
|
||
|
|
* Software that is described herein is for illustrative purposes only
|
||
|
|
* which provides customers with programming information regarding the
|
||
|
|
* LPC products. This software is supplied "AS IS" without any warranties of
|
||
|
|
* any kind, and NXP Semiconductors and its licensor disclaim any and
|
||
|
|
* all warranties, express or implied, including all implied warranties of
|
||
|
|
* merchantability, fitness for a particular purpose and non-infringement of
|
||
|
|
* intellectual property rights. NXP Semiconductors assumes no responsibility
|
||
|
|
* or liability for the use of the software, conveys no license or rights under any
|
||
|
|
* patent, copyright, mask work right, or any other intellectual property rights in
|
||
|
|
* or to any products. NXP Semiconductors reserves the right to make changes
|
||
|
|
* in the software without notification. NXP Semiconductors also makes no
|
||
|
|
* representation or warranty that such application will be suitable for the
|
||
|
|
* specified use without further testing or modification.
|
||
|
|
*
|
||
|
|
* @par
|
||
|
|
* Permission to use, copy, modify, and distribute this software and its
|
||
|
|
* documentation is hereby granted, under NXP Semiconductors' and its
|
||
|
|
* licensor's relevant copyrights in the software, without fee, provided that it
|
||
|
|
* is used in conjunction with NXP Semiconductors microcontrollers. This
|
||
|
|
* copyright, permission, and disclaimer notice must appear in all copies of
|
||
|
|
* this code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "chip.h"
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Private types/enumerations/variables
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/* Reserved bits mask for SCR register */
|
||
|
|
#define SCB_SCR_RESERVED (~(SCB_SCR_SLEEPONEXIT_Msk|SCB_SCR_SLEEPDEEP_Msk|SCB_SCR_SEVONPEND_Msk))
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Public types/enumerations/variables
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Private functions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Public functions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/* Enter MCU Sleep mode */
|
||
|
|
void Chip_PMU_SleepState(LPC_PMU_T *pPMU)
|
||
|
|
{
|
||
|
|
SCB->SCR = ~(1UL << SCB_SCR_SLEEPDEEP_Pos) & (SCB->SCR & ~SCB_SCR_RESERVED);
|
||
|
|
pPMU->PCON = PMU_PCON_PM_SLEEP;
|
||
|
|
|
||
|
|
/* Enter sleep mode */
|
||
|
|
__WFI();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Enter MCU Deep Sleep mode */
|
||
|
|
void Chip_PMU_DeepSleepState(LPC_PMU_T *pPMU)
|
||
|
|
{
|
||
|
|
SCB->SCR = (1UL << SCB_SCR_SLEEPDEEP_Pos) | (SCB->SCR & ~SCB_SCR_RESERVED);
|
||
|
|
pPMU->PCON = PMU_PCON_PM_DEEPSLEEP;
|
||
|
|
|
||
|
|
/* Enter sleep mode */
|
||
|
|
__WFI();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Enter MCU Power down mode */
|
||
|
|
void Chip_PMU_PowerDownState(LPC_PMU_T *pPMU)
|
||
|
|
{
|
||
|
|
SCB->SCR = (1UL << SCB_SCR_SLEEPDEEP_Pos) | (SCB->SCR & ~SCB_SCR_RESERVED);
|
||
|
|
pPMU->PCON = PMU_PCON_PM_POWERDOWN;
|
||
|
|
|
||
|
|
/* Enter sleep mode */
|
||
|
|
__WFI();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Enter MCU Deep Power down mode */
|
||
|
|
void Chip_PMU_DeepPowerDownState(LPC_PMU_T *pPMU)
|
||
|
|
{
|
||
|
|
SCB->SCR = (1UL << SCB_SCR_SLEEPDEEP_Pos) | (SCB->SCR & ~SCB_SCR_RESERVED);
|
||
|
|
pPMU->PCON = PMU_PCON_PM_DEEPPOWERDOWN;
|
||
|
|
|
||
|
|
/* Enter sleep mode */
|
||
|
|
__WFI();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Put some of the peripheral in sleep mode */
|
||
|
|
void Chip_PMU_Sleep(LPC_PMU_T *pPMU, CHIP_PMU_MCUPOWER_T SleepMode)
|
||
|
|
{
|
||
|
|
if (SleepMode == PMU_MCU_DEEP_SLEEP) {
|
||
|
|
Chip_PMU_DeepSleepState(pPMU);
|
||
|
|
}
|
||
|
|
else if (SleepMode == PMU_MCU_POWER_DOWN) {
|
||
|
|
Chip_PMU_PowerDownState(pPMU);
|
||
|
|
}
|
||
|
|
else if (SleepMode == PMU_MCU_DEEP_PWRDOWN) {
|
||
|
|
Chip_PMU_DeepPowerDownState(pPMU);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* PMU_MCU_SLEEP */
|
||
|
|
Chip_PMU_SleepState(pPMU);
|
||
|
|
}
|
||
|
|
}
|