Lpc2000

Hi,
Please help with the Adcs.
I having problem of reading conversion from ADC_1.
LPC2134/6/8 have two ADCs and 16 pins to connect to.
I wrote the following code. and it runs fine in the evaluation board 
LPC2138, but not the target board LPC2134.
Here is what I did.
Initialize ADC0
Initialize ADC1
Both has interrupt vectors assigned to.

#define configure_adc_0 0x01215F00
#define configure_adc_1 0x01215F00

void adc_0_initialize (int * p, int lastchannel)
{
	index_0 = 0;
	memcpy(&x[0], p,32);
	lastchannel_adc_0 = lastchannel; 
	VICVectAddr3 = (unsigned long)adc0_irq;			
	VICVectCntl3 = 0x32; 				    	
	VICIntEnable |= VIC_BIT(VIC_ADC_0);			
	AD0CR   = configure_adc_0 | Find_Next_Channel(lastchannel,0) ;
}
void adc_1_initialize (int * p, int lastchannel)
{
	index_1 = 0;
	memcpy(&y[0], p,32);
	lastchannel_adc_1 = lastchannel; 
	VICVectAddr10 = (unsigned long)adc1_irq;		
	VICVectCntl10 = 0x35; 				    	
	VICIntEnable |= VIC_BIT(VIC_ADC_1);			
	AD1CR   = configure_adc_1 | Find_Next_Channel(lastchannel,1) ;
}
// to start both ADCs
void StartAdcs(void){
	ADGSR = 0x01010000;
}
// isr of adc0
void adc0_irq (void) __irq
{
	int chan, tmp;
	unsigned short val;
	tmp = AD0DR;
	chan = ((tmp >> 24)& 0x07); 
	val =  (unsigned short)((tmp >> 6 )& 0x3FF);
	result_0[index_0][chan] = val;
	index_0 = IncrementInindex(index_0,chan,0);
	AD0CR  = configure_adc_0 | Find_Next_Channel(chan,0) ;
	VICVectAddr = 0; 					
}
// isr of adc1
void adc1_irq (void) __irq
{
	int chan, tmp;
	unsigned short val;
	tmp = AD1DR;
	chan = ((tmp >> 24)& 0x07); 
	val =  (unsigned short)((tmp >> 6 )& 0x3FF);
	result_1[index_1][chan] = val;
	index_1 = IncrementInindex(index_1,chan,1);
	AD1CR   = configure_adc_1 | Find_Next_Channel(chan,1) ;
	VICVectAddr = 0; 					
				
}

On the evaluation board which has LPC2138 it runs fine, both 
interrupt got triggered.
When move this code onto the target with a LPC2134, only adc0 gets 
triggerd.

Please take a look and help me with any ideas

thanks