/* 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);
}
}
/* Handle interrupt from GPIO pin or GPIO pin mapped to PININT */
static void ProcessPowerState(CHIP_PMU_MCUPOWER_T crntPowerSetting)
{
volatile uint32_t tempTimeout;
/* Output power status message, add separating space */
DEBUGSTR("\r\n");
/* Switch on current selected power setting */
switch (crntPowerSetting) {
case PMU_MCU_SLEEP:
default:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering SLEEP power setting\r\n");
DEBUGOUT(" (System will exit SLEEP in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* Enter MCU Sleep mode */
Chip_PMU_SleepState(LPC_PMU);
break;
case PMU_MCU_DEEP_SLEEP:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering DEEP SLEEP power setting\r\n");
DEBUGOUT(" (System will exit DEEP SLEEP in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* We should call Chip_SYSCTL_SetWakeup() to setup any peripherals we want
to power back up on wakeup. For this example, we'll power back up the IRC,
FLASH, the system oscillator, and the PLL */
Chip_SYSCTL_SetWakeup(~(SYSCTL_SLPWAKE_IRCOUT_PD | SYSCTL_SLPWAKE_IRC_PD |
SYSCTL_SLPWAKE_FLASH_PD | SYSCTL_SLPWAKE_SYSOSC_PD | SYSCTL_SLPWAKE_SYSPLL_PD));
Chip_SYSCTL_EnableERP1PeriphWakeup(SYSCTL_ERP1_WAKEUP_RTCALARMINT);
/* Enter MCU Deep Sleep mode */
Chip_PMU_DeepSleepState(LPC_PMU);
break;
case PMU_MCU_POWER_DOWN:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering POWER DOWN power setting\r\n");
DEBUGOUT(" (System will exit POWER DOWN in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* We should call Chip_SYSCTL_SetWakeup() to setup any peripherals we want
to power back up on wakeup. For this example, we'll power back up the IRC,
FLASH, the system oscillator, and the PLL */
Chip_SYSCTL_SetWakeup(~(SYSCTL_SLPWAKE_IRCOUT_PD | SYSCTL_SLPWAKE_IRC_PD |
SYSCTL_SLPWAKE_FLASH_PD | SYSCTL_SLPWAKE_SYSOSC_PD | SYSCTL_SLPWAKE_SYSPLL_PD));
Chip_SYSCTL_EnableERP1PeriphWakeup(SYSCTL_ERP1_WAKEUP_RTCALARMINT);
/* Enter MCU Power down mode */
Chip_PMU_PowerDownState(LPC_PMU);
break;
case PMU_MCU_DEEP_PWRDOWN:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering DEEP POWER DOWN power setting\r\n");
DEBUGOUT(" (System will exit DEEP POWER DOWN in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* Enable wakeup from deep power down mode due to RTC Alarm Match */
Chip_RTC_EnableWakeup(LPC_RTC, RTC_CTRL_ALARMDPD_EN);
/* Enter MCU Deep Power down mode */
Chip_PMU_DeepPowerDownState(LPC_PMU);
break;
}
}
