Crash Routine ???!!!

Iam working on LPC2378 with KEIL3.
There is no OS and its a customized board.

An problem occured when i called a function 'Init_VIC()' ... i guess !!!

it is defined as

/* Initialize the interrupt controller */
/******************************************************************************
** Function name:               init_VIC
**
** Descriptions:                Initialize VIC interrupt controller.
** parameters:                  None
** Returned value:              None
**
******************************************************************************/
void init_VIC(void)
{
    DWORD i = 0;
    DWORD *vect_addr, *vect_cntl;

    /* initialize VIC*/
    VICIntEnClr = 0xffffffff;
    VICVectAddr = 0;
    VICIntSelect = 0;

    /* set all the vector and vector control register to 0 */
    for ( i = 0; i < VIC_SIZE; i++ )
    {
                vect_addr = (DWORD *)(VIC_BASE_ADDR + VECT_ADDR_INDEX + i*4);
                vect_cntl = (DWORD *)(VIC_BASE_ADDR + VECT_CNTL_INDEX + i*4);
                *vect_addr = 0x0;
                *vect_cntl = 0xF;
    }
    return;
}

The controller got crashed and error message
"could not stop JTAG device" is being showed everytime i try to flash or erase it!
I commented the call and there was no problem flashing it on another board !!!
I am totally puzzeled.
please anybody tell me why ?

Thanks in advance

dipinraj.d@gmail.com