//function definitions
void Clock_init(void)
{
UCS_setExternalClockSource(
32768,
0);
// Set Vcore to accomodate for max. allowed system speed
PMM_setVCore(
PMM_CORE_LEVEL_3
);
// Use 32.768kHz XTAL as reference
UCS_LFXT1Start(
UCS_XT1_DRIVE0,
UCS_XCAP_3
);
// Set system clock to max (25MHz)
UCS_initFLLSettle(
25000,
762
);
SFR_enableInterrupt(
SFR_OSCILLATOR_FAULT_INTERRUPT
);
// Globally enable interrupts
__enable_interrupt();
}
void WDTConfiguration(void)
{
WDT_A_initIntervalTimer(WDT_A_BASE, WDT_A_CLOCKSOURCE_ACLK, WDT_A_CLOCKDIVIDER_32K);
//Enable Watchdog Interupt
SFR_clearInterrupt( SFR_WATCHDOG_INTERVAL_TIMER_INTERRUPT );
SFR_enableInterrupt( SFR_WATCHDOG_INTERVAL_TIMER_INTERRUPT );
}
void main (void)
{
//Initialize WDT module in timer interval mode,
//with SMCLK as source at an interval of 32 ms.
WDT_intervalTimerInit(__MSP430_BASEADDRESS_WDT_A__,
WDT_CLOCKSOURCE_SMCLK,
WDT_CLOCKDIVIDER_32K);
//Enable Watchdog Interupt
SFR_enableInterrupt(__MSP430_BASEADDRESS_SFR__,
WDTIE);
//Set P1.0 to output direction
GPIO_setAsOutputPin(__MSP430_BASEADDRESS_PORT1_R__,
GPIO_PORT_P1,
GPIO_PIN0
);
//Enter LPM0, enable interrupts
__bis_SR_register(LPM0_bits + GIE);
//For debugger
__no_operation();
}