void vbat_init(void)
{
vbat_reset();
vbat_enable_xosc(0);
RTC32_Initialize(0xffffffff, 0, 2 );
RTC32_SetCompareIntLevel(RTC32_COMPINTLVL_LO_gc);
}
/*! \brief The main RTC example.
*
* This function initializes the XMEGA to the least power consuming state,
* before initializing the sleep manager and RTC32 as configured above.\n
* The main loop doesn't do anything but put the device back to the configured
* sleep mode after a delay of 0.5 second.
*/
int main(void)
{
// Initialize to the least power consuming state.
LOWPOWER_Init();
// Enable EEPROM and Flash power reduction mode.
CCPWrite(&NVM.CTRLB, NVM_EPRM_bm | NVM_FPRM_bm);
// Initialize the sleep manager, lock a sleep mode if configured.
SLEEPMGR_Init();
#ifdef SLEEP_MODE
SLEEPMGR_Lock( SLEEP_MODE );
#endif // SLEEP_MODE
// If use of the RTC as interval timer is configured, set it up.
#ifdef USE_RTC
// Clear bit for RTC in PRR (it is set by LOWPOWER_Init()).
PR.PRGEN &= ~PR_RTC_bm;
// Reset the battery backup module.
RTC32_Reset();
// Configure and enable TOSC, then set up and enable the RTC32 module.
RTC32_ToscEnable( false );
RTC32_Initialize( RTC_PERIOD, 0, 0 );
// Enable RTC compare interrupts.
RTC32_SetCompareIntLevel( RTC32_COMPINTLVL_LO_gc );
PMIC.CTRL |= PMIC_LOLVLEN_bm;
sei();
#endif // USE_RTC
// Main loop.
do {
/* On wake-up, stay in ACTIVE mode for 0.5 s and then go back to sleep.
*
* In an actual application, you would process events/data here.
*/
delay_us(500000);
// Due to errata, disable Flash power reduction before sleep.
CCPWrite(&NVM.CTRLB, NVM_EPRM_bm);
SLEEPMGR_Sleep();
// Re-enable Flash power reduction mode after sleep.
CCPWrite(&NVM.CTRLB, NVM_EPRM_bm | NVM_FPRM_bm);
} while (1);
}
/**
* \brief This function Initializes the Sleep functions
*/
void sm_init(void)
{
// Set the sleep mode to initially lock.
enum sleepmgr_mode mode = SLEEPMGR_PSAVE;
sysclk_enable_module(SYSCLK_PORT_GEN, SYSCLK_RTC);
RTC32_Initialize(0xffffffff, 0, 0);
RTC32.INTCTRL |= RTC32_COMPINTLVL_LO_gc ;
// Initialize the sleep manager, lock initial mode.
sleepmgr_init();
sleepmgr_lock_mode(mode);
}
