Problem in triggering interrupts on ARM lpc2148

Code C - [expand]
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#include "LPC214x.h"
#define PLOCK 0x400
void init(void);
 
void IRQ_Routine(void) __attribute__ ((interrupt ("IRQ")));
void FIQ_Routine (void) __attribute__ ((interrupt("FIQ")));
void SWI_Routine (void) __attribute__ ((interrupt("SWI")));
void UNDEF_Routine (void) __attribute__ ((interrupt("UNDEF")));
 
int main(void)
{
PINSEL0 = 0x00000000;
init();
T0MCR = 0x0003; //interrupt and reset on MR0
T0MR0 = 0x00ffffff; //compare-hit count
T0TCR |= 0x02; //reset counter
 
T0TCR |= 0x01; //enable Timer0
 
VICVectAddr0 = (unsigned long)&IRQ_Routine; //set interrupt vector in 0
//or
//VICVectAddr0 = (unsigned long)IRQ_Routine; //set interrupt vector in 0
VICVectCntl0 = 0x00000024; //use it for Timer 0 Interrupt
VICIntSelect = 0x00000000; //Configure for IRQ
VICIntEnable = 0x00000010; //enable TIMER0 interrupt
while(1);
}
 
void IRQ_Routine(void)
{
volatile int i;
PINSEL0 = 0x00000000;
IODIR0 = 0xffffffff;
IOSET0 = 0xffffffff; 
for(i=0;i<0x0000ffff;i++);
IOCLR0 = 0xffffffff;
for(i=0;i<0x0000ffff;i++);
T0IR = 0x01; //clear interrupt
VICVectAddr0 = 0; //end of interrupt - dummy write
}
 
void init(void)
{
PLLCFG=0x24; //set multiplier/divider values
PLLFEED=0xaa;
PLLFEED=0x55;
PLLCON=0x01; //enable PLL
PLLFEED=0xaa;
PLLFEED=0x55;
while(!(PLLSTAT & PLOCK)); //wait for the PLL to lock to set frequency
PLLCON=0x3; //connect the PLL as the clock source
PLLFEED=0xaa;
PLLFEED=0x55;
MAMCR=0x02; //enable MAM
MAMTIM=0x04; //set number of clocks for flash memory fetch
VPBDIV=0x01; //set peripheral clock(pclk) to system clock(cclk)
}
 
void FIQ_Routine(void){
while (1) ;
}
void SWI_Routine(void){
while (1) ;
}
void UNDEF_Routine(void) {
while (1) ;
}