mpu_ex2_twoSeg.c

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//******************************************************************************
//******************************************************************************
 
#include "driverlib.h"
 
uint16_t *ptr = 0;
uint16_t Data =0;
 
void main(void)
{
    WDT_A_hold(WDT_A_BASE);                 // Stop WDT
 
    //Set P1.0 as an output pin.
    /*
 
     * Select Port 1
     * Set Pin 0 as output
     */
    GPIO_setAsOutputPin(
            GPIO_PORT_P1,
            GPIO_PIN0);
 
    //Set P3.5 as an output pin.
    /*
 
    * Select Port 3
    * Set Pin 5 as output
    */
 
    GPIO_setAsOutputPin(
            GPIO_PORT_P3,
            GPIO_PIN5
    );
 
    if(MPU_getInterruptStatus(MPU_BASE,MPUSEG2IFG))
    {
        //Toggle P1.0 output pin.
        /*
 
        * Select Port 1
        * Set Pin 0 as output
         */
 
        GPIO_toggleOutputOnPin(
            GPIO_PORT_P1,
            GPIO_PIN0
        );
 
        //Toggle P3.5 output pin.
        /*
 
        * Select Port 3
        * Set Pin 5 as output
         */
 
        GPIO_toggleOutputOnPin(
            GPIO_PORT_P3,
            GPIO_PIN5
        );
    }
 
    __delay_cycles(30000);                    // Delay to see toggle
 
    MPU_enablePUCOnViolation(MPU_BASE,MPU_SECOND_SEG);
 
    MPU_initTwoSegments(MPU_BASE, 0x08, MPU_READ|MPU_WRITE|MPU_EXEC, MPU_READ);
 
    MPU_start(MPU_BASE);
 
    Data = 0x88;
 
    // Cause an MPU violation by writing to segment 2
    ptr = (uint16_t  *)0xD002;
    *ptr = Data;
 
 
    while(1);                                 // Code never gets here
}