//*****************************************************************************
//
// Returns maximum startup time (in microseconds) of XOSC_HF
//
//*****************************************************************************
uint32_t
OSCHF_GetStartupTime( uint32_t timeUntilWakeupInMs )
{
uint32_t deltaTimeSinceXoscOnInMs ;
int32_t deltaTempSinceXoscOn ;
uint32_t newStartupTimeInUs ;
deltaTimeSinceXoscOnInMs = RTC_CV_TO_MS( AONRTCCurrentCompareValueGet() - oscHfGlobals.timeXoscOn_CV );
deltaTempSinceXoscOn = AONBatMonTemperatureGetDegC() - oscHfGlobals.tempXoscOff;
if ( deltaTempSinceXoscOn < 0 ) {
deltaTempSinceXoscOn = -deltaTempSinceXoscOn;
}
if ( (( timeUntilWakeupInMs + deltaTimeSinceXoscOnInMs ) > 3000 ) ||
( deltaTempSinceXoscOn > 5 ) ||
( oscHfGlobals.timeXoscStable_CV < oscHfGlobals.timeXoscOn_CV ) ||
( oscHfGlobals.previousStartupTimeInUs == 0 ) )
{
newStartupTimeInUs = 2000;
if (( HWREG( CCFG_BASE + CCFG_O_SIZE_AND_DIS_FLAGS ) & CCFG_SIZE_AND_DIS_FLAGS_DIS_XOSC_OVR_M ) == 0 ) {
newStartupTimeInUs = (( HWREG( CCFG_BASE + CCFG_O_MODE_CONF_1 ) &
CCFG_MODE_CONF_1_XOSC_MAX_START_M ) >>
CCFG_MODE_CONF_1_XOSC_MAX_START_S ) * 125;
// Note: CCFG startup time is "in units of 100us" adding 25% margin results in *125
}
// interrupts -----------------------------------------------------------
void GPIOIntHandler(void){
uint32_t event_flags;
static uint32_t time1 = 0,time2 = 0;
powerEnablePeriph();
powerEnableGPIOClockRunMode();
/* Wait for domains to power on */
while((PRCMPowerDomainStatus(PRCM_DOMAIN_PERIPH) != PRCM_DOMAIN_POWER_ON));
time1 = time2;
time2=AONRTCCurrentCompareValueGet();
g_diff=time2-time1;
/*Disable interrupts while clearing flags*/
IntDisable(INT_EDGE_DETECT);
/* Read interrupt flags */
event_flags = (HWREG(GPIO_BASE + GPIO_O_EVFLAGS31_0) & GPIO_PIN_MASK);
if(event_flags){//Is an event flag set? (should always be set)
/* Clear the interrupt flags*/
HWREG(GPIO_BASE + GPIO_O_EVFLAGS31_0) = event_flags;
/*Wait until the flag is cleared, no new flag possible because interrupt disabled*/
//while((HWREG(GPIO_BASE + GPIO_O_EVFLAGS31_0) & GPIO_PIN_MASK)); // CRASH
}
/*Enable after flags cleared*/
IntEnable(INT_EDGE_DETECT);
powerDisablePeriph();
// Disable clock for GPIO in CPU run mode
HWREGBITW(PRCM_BASE + PRCM_O_GPIOCLKGR, PRCM_GPIOCLKGR_CLK_EN_BITN) = 0;
// Load clock settings
HWREGBITW(PRCM_BASE + PRCM_O_CLKLOADCTL, PRCM_CLKLOADCTL_LOAD_BITN) = 1;
//To avoid second interupt with register = 0 (its not fast enough!!)
__asm(" nop");
__asm(" nop");
__asm(" nop");
__asm(" nop");
__asm(" nop");
__asm(" nop");
}
