mpu_ex3_systemPreInit.c

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//******************************************************************************
//******************************************************************************
 
#include "driverlib.h"
 
#if defined(__TI_COMPILER_VERSION__)
int _system_pre_init(void)
#elif defined(__IAR_SYSTEMS_ICC__)
int __low_level_init(void)
#elif defined(__GNUC__)
int __attribute__((naked, section(".crt_0000init"), used)) _system_pre_init(void)
#endif
{
    // Stop WDT
    WDT_A_hold(WDT_A_BASE);
 
    // Enable PUC on violation
    MPU_enablePUCOnViolation(MPU_BASE,MPU_SECOND_SEG);
 
    // Configure MPU
    MPU_initThreeSegmentsParam param = {0};
    param.seg1boundary = 0x05;
    param.seg2boundary = 0x08;
    param.seg1accmask = MPU_READ|MPU_WRITE|MPU_EXEC;
    param.seg2accmask = MPU_READ;
    param.seg3accmask = MPU_READ|MPU_WRITE|MPU_EXEC;
    MPU_initThreeSegments(MPU_BASE, &param);
 
    MPU_start(MPU_BASE);
 
    return 1;
}
 
void main(void)
{
    
}