I'm having difficulty stopping the interrupts from occurring. I've followed the data sheet as best I can. I've disabled EA (global), EADC (all ADC Interrupts), ADC0EN (Primary ADC device) which are the only bits associated with ADC interrupts, but my code continues to loop forever. I've tried doing these bit changes in both main and the ISR to no avail. What am I missing?

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <ADuC845.h>    //To use this with an ADuC847 or ADuC848, simply change the
					    //header file to <ADuC847.h> or <ADuC848>

#define MAX 20
 
sbit LED = 0x0B4;


unsigned short int adcSamples[MAX];
int indexSample = 0;
volatile int flag = 0;

void delay(int count);

void ADC_Interrupt () interrupt 6
{
  unsigned short int adcH = ADC0H;

  if(indexSample < MAX)
  {
    adcSamples[indexSample++] = adcH;
    RDY0 = 0;
    //printf("indexSample: %d n", indexSample);
    //printf("Dec Value: %d n", adcH);
    LED ^= 1;
    //delay(1);

  }
  else
  {
    //printf("Exceeded Index Samplen");
    flag = 1;  //Cause main loop failure
    RDY0 = 1;           //Ensure primary ADC cannot be triggered
    ADCMODE &= 0x00;    //Disable primary ADC device 
    EADC = 0;           //Disable ADC Interrupt
    LED ^= 1;
  }

  return;
}

void main (void)
{
  int i = 0;
  int sum = 0;
  float average = 0;

  //Configure UART
  T3CON = 0x83;	//9600 Baud rate
  T3FD = 0x12;
  SCON = 0x52;

	//CONFIGURE ADC AND START CONVERTING....
  SF = 0x45;
  ADC0CON1 = 0x27;	  //Full Buffer, Unipolar, 0 - 650 mV range.
  ADC0CON2 = 0x01;	  //Refin+/-, Ain2
  EADC = 1;           //Enable ADC Interrupt
  EA = 1;             //Enable Global Interrupts
  ADCMODE = 0x03;	    //Continuous conversion on primary ADC device
  ADCMODE |= 0x20;    //Primary ADC Enable

  delay(5);
	while(flag == 0); 	//WAIT FOR INTERRUPTS....
  
  printf("Flag after interrupt loop %d n", flag);


  //printf("Escaped Interrupt Loopn");
  for(i = 0; i < MAX; ++i)
  { 
    sum += adcSamples[i];
    printf("adc Sample %d: %dn", i, adcSamples[i]); 
  }

  average = ceil(sum/20);
  printf("Average: %.2fn", average);
  
  delay(5);
  RDY0 = 1;           //Ensure primary ADC cannot be triggered
  ADCMODE^5 = 0;    //Disable primary ADC device 
  EADC = 0;           //Disable ADC Interrupt
  //PCON = 0x02; //Power Down to stop interrupt
  return;
}


void delay(int count)
{
  int i;
  int j;
  int max = 32766;
  
  for(i = 0; i < count; ++i)
  {
    for(j = 0; j < max; ++j);
  }
}