/*
* ======== SENSORTAG_CC2650_initGeneral ========
*/
Void SENSORTAG_CC2650_initGeneral(Void)
{
/* force power on AUX - this will be released when entering sleep mode */
AONWUCAuxWakeupEvent(AONWUC_AUX_WAKEUP);
/* enable the AUX oscillator clock */
AUXWUCClockEnable(AUX_WUC_OSCCTRL_CLOCK);
while(AUXWUCClockStatus(AUX_WUC_OSCCTRL_CLOCK) != AUX_WUC_CLOCK_READY)
{ }
/* This application will not be using the AUX domain out of boot
* and we will leave out clock for optimal power conservation */
AONWUCAuxPowerDownConfig(AONWUC_NO_CLOCK);
/*
* Source the LF clock from the low frequency XTAL_OSC.
* HF and MF are sourced from the high frequency RC_OSC.
*/
OSCClockSourceSet(OSC_SRC_CLK_LF, OSC_XOSC_LF);
OSCClockSourceSet(OSC_SRC_CLK_MF | OSC_SRC_CLK_HF, OSC_RCOSC_HF);
/*
* Check if already sourcing the HF clock from RC_OSC.
* If a switch of the clock source is not required, then the call to ROM
* will loop forever.
*/
if(OSCClockSourceGet(OSC_SRC_CLK_HF) != OSC_RCOSC_HF)
{
OSCHfSourceSwitch();
}
/* enable DCDC */
PowerCtrlSourceSet(PWRCTRL_PWRSRC_DCDC);
/* make sure AON accesses are in sync and enable powerdown on AUX */
SysCtrlAonSync();
AUXWUCPowerCtrl(AUX_WUC_POWER_DOWN);
}
//*****************************************************************************
//
// Force the system in to low power modes.
//
//*****************************************************************************
void
PowerCtrlStateSet(uint32_t ui32Powerstate)
{
//
// Check the arguments.
//
ASSERT((ui32Powerstate == PWRCTRL_STANDBY) ||
(ui32Powerstate == PWRCTRL_POWER_DOWN) ||
(ui32Powerstate == PWRCTRL_SHUTDOWN));
//
// Configure the desired power state.
//
if(ui32Powerstate == PWRCTRL_STANDBY)
{
//
//
// Turn of all power domains in the MCU voltage domain. This is
// necessary to conserve power before switching to the uLDO.
//
PRCMPowerDomainOff(PRCM_DOMAIN_RFCORE | PRCM_DOMAIN_SERIAL |
PRCM_DOMAIN_PERIPH | PRCM_DOMAIN_CPU |
PRCM_DOMAIN_VIMS);
//
// Make sure to request power off of the JTAG domain.
//
AONWUCJtagPowerOff();
//
// Configuration of clock source for MCU and AUX in standby mode.
//
AONWUCMcuPowerDownConfig(AONWUC_CLOCK_SRC_LF);
AONWUCAuxPowerDownConfig(AONWUC_CLOCK_SRC_LF);
//
// Configure the recharge controller and request the uLDO as power
// source.
//
AONWUCRechargeCtrlConfigSet(true, 34, 2500, 5000);
//
// Enable AUX power down
// This will tell the system that no HF source is needed and will
// allow the system to use the low-leakage/effect power supply.
// NB. This does not allow co-existence of an independent
// Sensor Controller.
//
AUXWUCPowerCtrl(AUX_WUC_POWER_DOWN);
while(AONWUCPowerStatusGet() & AONWUC_AUX_POWER_ON);
//
// Request the uLDO for standby power consumption.
//
PowerCtrlSourceSet(PWRCTRL_PWRSRC_ULDO);
//
// Sync the AON interface to ensure all writes have gone through
//
HWREG(AON_RTC_BASE + AON_RTC_O_SYNC);
//
// Enable transition to standby.
//
PRCMDeepSleep();
}
else if(ui32Powerstate == PWRCTRL_POWER_DOWN)
{
//
// Latch the current IO configuration before going to sleep to ensure
// the IOs retain their value even after boot and reset of the
// configuration.
//
AONIOCFreezeEnable();
//
// Make sure retention on MCU SRAM is on - on pr. default.
//
AONWUCMcuSRamConfig(MCU_RAM0_RETENTION | MCU_RAM1_RETENTION |
MCU_RAM2_RETENTION | MCU_RAM3_RETENTION);
//
// Allow power off on all domains in the MCU voltage domain.
// This is necessary to conserve power before switching to the uLDO.
//
PRCMPowerDomainOff(PRCM_DOMAIN_RFCORE | PRCM_DOMAIN_SERIAL |
PRCM_DOMAIN_PERIPH | PRCM_DOMAIN_CPU |
PRCM_DOMAIN_VIMS);
//
// Turn off the MCU voltage domain. This will not take effect until System CPU
// is in deep sleep.
//
PRCMMcuPowerOff();
//
// Set the wake up mode - default value coming out of reset
//
AONWUCMcuWakeUpConfig(MCU_IMM_WAKE_UP);
//
// VIRTUAL POWER OFF DISABLE is the default value coming out of reset
//
AONWUCMcuPowerOffConfig(MCU_VIRT_PWOFF_DISABLE);
//
// Configure the recharge controller and request the uLDO as power
// source.
// Recommended maximum numbers for lowest power consumption
// AdaptRate = 96
// MaxPeriod = 21440
// InitPeriod = 14816
//
AONWUCRechargeCtrlConfigSet(true, 75, 5000, 7500);
//
// Enable AUX power down with LF clock source
// Turn off JTAG domain and enable powerdown - values are default.
//
AONWUCAuxPowerDownConfig(AONWUC_CLOCK_SRC_LF);
AUXWUCPowerCtrl(AUX_WUC_POWER_DOWN);
AONWUCDomainPowerDownEnable();
while(AONWUCPowerStatusGet() & AONWUC_AUX_POWER_ON);
//
// Sync the AON interface to ensure all writes have gone through
//
HWREG(AON_RTC_BASE + AON_RTC_O_SYNC);
//
// Enable transition to power down.
//
PRCMDeepSleep();
}
else
{
//
// Latch the current IO configuration before going to sleep to ensure
// the IOs retain their value even after boot and reset of the
// configuration.
//
AONIOCFreezeEnable();
//
// Turn of all power domains in the MCU voltage domain.
//
PRCMPowerDomainOff(PRCM_DOMAIN_RFCORE | PRCM_DOMAIN_SERIAL |
PRCM_DOMAIN_PERIPH | PRCM_DOMAIN_CPU |
PRCM_DOMAIN_VIMS);
//
// Turn off the MCU voltage domain. This will not take effect until System CPU
// is in deep sleep.
//
PRCMMcuPowerOff();
//
// Set the wake up mode of MCU to immediate
//
AONWUCMcuWakeUpConfig(MCU_IMM_WAKE_UP);
AONWUCMcuPowerOffConfig(MCU_VIRT_PWOFF_DISABLE);
//
// Turn off the AUX domain and wait for power to be off.
//
// Is this required for shutdown mode? or will AUX automatically
// power off.
AUXWUCPowerCtrl(AUX_WUC_POWER_OFF);
while(AONWUCPowerStatusGet() & AONWUC_AUX_POWER_ON)
{ }
//
// Latch the IOs in the padring before going to sleep to retain their
// value even after boot and reset of the configuration.
//
PowerCtrlIOFreezeEnable();
//
// Enable shutdown and make sure the AON interface is in sync on the
// 32kHz clock.
//
AONWUCShutDownEnable();
//
// Sync the AON interface to ensure all writes have gone through
//
HWREG(AON_RTC_BASE + AON_RTC_O_SYNC);
//
// Enable transition to shutdown.
//
PRCMDeepSleep();
}
}
