ram_ex1_setSectorOff.c

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//******************************************************************************
//******************************************************************************
#include "driverlib.h"
 
#define DEFAULT_VALUE 0xBEAD
 
static uint16_t sectorValue;
 
void main (void)
{
    sectorValue = DEFAULT_VALUE;
 
    //Initialize WDT module in timer interval mode,
    //with SMCLK as source at an interval of 32 ms.
    WDT_A_initIntervalTimer(WDT_A_BASE,
        WDT_A_CLOCKSOURCE_ACLK,
        WDT_A_CLOCKDIVIDER_32K);
 
    WDT_A_start(WDT_A_BASE);
 
    //Enable Watchdog Interupt
    SFR_clearInterrupt(SFR_WATCHDOG_INTERVAL_TIMER_INTERRUPT);
    SFR_enableInterrupt(SFR_WATCHDOG_INTERVAL_TIMER_INTERRUPT);
 
    //Set P1.0 to output direction
    GPIO_setAsOutputPin(
        GPIO_PORT_P1,
        GPIO_PIN0
        );
 
    /*
     * Disable the GPIO power-on default high-impedance mode to activate
     * previously configured port settings
     */
    PMM_unlockLPM5();
 
    //RAM controller setting
    RAM_setSectorOff(RAM_SECTOR0, RAM_RETENTION_MODE);
 
    while (1) {
        //Enter LPM0, enable interrupts
        __bis_SR_register(LPM3_bits + GIE);
        //For debugger
        __no_operation();
 
        if (sectorValue == DEFAULT_VALUE) {
            //Toggle P1.0
            GPIO_toggleOutputOnPin(
                GPIO_PORT_P1,
                GPIO_PIN0);
        }
    }
 
}
 
//Watchdog Timer interrupt service routine
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=WDT_VECTOR
__interrupt
#elif defined(__GNUC__)
__attribute__((interrupt(WDT_VECTOR)))
#endif
void WDT_A_ISR (void)
{
    __bic_SR_register_on_exit(LPM3_bits);
}