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Here is my code:

 

#include <__cross_studio_io.h>
#include "msp430x54x.h"
#include "inmsp.h"

#define   NUMRESULTS   1000
unsigned char results[NUMRESULTS]; 
unsigned int index = 0;

void main(void)
{

  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT

////////////////////////////////// DMA Configuration (0) ///////////////////////////////////////
  // Using DMA channel 0 i.e., DMA0

  DMACTL0 = DMA0TSEL_24;                          // Using ADC12IFG.0 as DMA trigger source

  DMACTL4 = DMARMWDIS;

  DMA0CTL = DMALEVEL+DMADSTINCR0+DMADSTINCR1+DMADSTBYTE+DMAEN;

  // Source address
  DMA0SA = ADC12MEM0_;
                                           
  // Destination address
  DMA0DA = 0x1c02;
                                           
  DMA0SZ = NUMRESULTS;                               // Block size
/////////////////////////////////////////////////////////////////////////////////////////////////////

////////////////////////////////// Timer Configuration (TA0.0) ///////////////////////////////////////
  // enabling port 1 for TA0CCR0 output
  P1DIR |= 0x02;
  P1SEL |= 0x02;
  TA0CTL = TASSEL0+MC0+TACLR;
  TA0CCR0 = 0x0001;                         //setting counter value for 8KHz symmetric pulse output
  TA0CCTL0 = CCIS1+SCCI+OUTMOD_4;
//  __bis_SR_register(LPM3_bits);             // Enter LPM3
/////////////////////////////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////// ADC Configuration (ADC_12A) /////////////////////////////////
  P6SEL |= 0x80;                            // Enable A/D channels port

  // setting up ADC12CTL0
  ADC12CTL0 = ADC12REF2_5V+ADC12REFON+ADC12ON;                      // using Extended sample mode
                                                                    // On Reference Generator and set to 2.5V                     
  // setting up ADC12CTL1
  ADC12CTL1 = ADC12SHS0+ADC12CONSEQ1+ADC12BUSY;                     // Use sampling timer TA0.0, extended sample mode
                                                                    // repeat single channel
  // setting up ADC12CTL2
  ADC12CTL2 = ADC12TCOFF+ADC12REFBURST;
 
  // setting up ADC12MCTLx
  ADC12MCTL0 = ADC12EOS+ADC12SREF_1|ADC12INCH_7;                    // Vr+=Vref+ and Vr-=AVss
                                                                    // A7 port is used for analog input
  // Enable interrupt flag (ADC12IFG.0)
  ADC12IE = 0x0001;

  // Enable conversions
  ADC12CTL0 |= ADC12ENC;                                           
////////////////////////////////////////////////////////////////////////////////////////////////////

  __bis_SR_register(GIE);                 //  Enable global interrupts
  while(1);
}

/////////////////////////////////////// Interrupt Service Routine /////////////////////////////////
#pragma vector = ADC12_VECTOR
__interrupt void ADC12ISR (void)
{
  unsigned check = 0;
  DEBUG_FILE * pFile;
  pFile = debug_fopen( "TestData", "wb" );

  while (index<=NUMRESULTS-1)
  {
    while(!(ADC12IFG & 0x0001));
    //results[index++] = ADC12MEM0;             // Move results from adc memory register to an array
    index++;
  }
  // Disable interrupt flag (ADC12IFG.0)
  ADC12IE = 0x0000;

  // writing binary file
  check = debug_fwrite( results, sizeof(unsigned char), NUMRESULTS, pFile );
  debug_fclose(pFile);
}

Umair Liaquat Qureshi

// Enable interrupt flag (ADC12IFG.0)
  ADC12IE = 0x0001;

YOu cannot do both, DAM and interrupt. If you set any ADC12IE bit, DMA won't be triggered. It's either-or.