Converted HEX file NOT WORKING

Hi to all...

I am using Keil Microvision 4, and am using the microcontroller LPC2103 - NXP make with 12MHz Crystal Oscillator in my hardware. I am trying to built a code for LED Blinking, but the converted hex file is not working in the hardware

Pls suggest me...

This is my code

===============================================================================================

#include <LPC2103.H>

void wait (void)
{ int d; for (d = 0; d < 10000; d++);
}

void PLLInit(void)
{ PLLCFG = 0x24; PLLCON = 0x01; PLLFEED = 0xAA; PLLFEED = 0x55; while(!(PLLSTAT & 0x0724)) ; PLLCON = 0x03; PLLFEED = 0xAA; PLLFEED = 0x55; APBDIV = 0x02;
}

void MAMInit(void)
{ MAMCR = 0x02; MAMTIM = 0x03; MEMMAP = 0xFD;
}

void SYSCONTROLInit(void)
{ IODIR = 0x04000000; PINSEL0 = 0x00000000; PINSEL1 = 0x00000000;
}

int main (void)
{ PLLInit(); MAMInit(); SYSCONTROLInit();

while (1) { IOCLR = 0x04000000; wait(); IOSET = 0x04000000; wait();

}
}

===============================================================================================

Waiting for Reply.,.,.,.,

Thanks & Regards

Gunasekaran TP