ISR for ADC is not working on F28335

Hi,

To all,

I m working on ADC. As per example i have taken ADC sample in continuous polling like this way

EALLOW;

SysCtrlRegs.PCLKCR0.bit.ADCENCLK = 1;

ADC_cal();

EDIS;

    AdcRegs.ADCTRL3.all = 0x00E0;  // Power up bandgap/reference/ADC circuits

    delay(50000);         // Delay before converting ADC channels

   delay(50000);

   AdcRegs.ADCTRL1.bit.ACQ_PS = 14;

   AdcRegs.ADCTRL3.bit.ADCCLKPS = 15;

   AdcRegs.ADCTRL1.bit.CPS = 1;

   AdcRegs.ADCTRL1.bit.SEQ_CASC = 1;        // 1  Cascaded mode

   AdcRegs.ADCCHSELSEQ1.bit.CONV00 = 0x0;

   AdcRegs.ADCTRL1.bit.CONT_RUN = 1;       // Setup continuous run

   AdcRegs.ADCTRL2.bit.INT_ENA_SEQ1 = 0x1;

AdcRegs.ADCTRL2.all = 0x2000;

for(;;)   

{

     while (AdcRegs.ADCST.bit.INT_SEQ1== 0) {} // Wait for interrupt 

         AdcRegs.ADCST.bit.INT_SEQ1_CLR = 1;                             

        SampleTable[index] =((AdcRegs.ADCRESULT0>>4) );

}

By this method i am getting sample but when I want to go for interrupt base sampling than there is no interrupt generation it means it is not going in to ISR even for a single time below is the intterupt based code.

EALLOW;  // This is needed to write to EALLOW protected registers

PieVectTable.TINT0 = &cpu_timer0_isr;

PieVectTable..ADCINT= &ADC_isr;

EDIS;

EALLOW;

SysCtrlRegs.PCLKCR0.bit.ADCENCLK = 1;

ADC_cal();

EDIS;

    AdcRegs.ADCTRL3.all = 0x00E0;  // Power up bandgap/reference/ADC circuits

    delay(50000);         // Delay before converting ADC channels

   delay(50000);

AdcRegs.ADCTRL2.all = 0x2000;

for(;;){}

 interrupt void ADC_isr(void)                         

referance for this also i have taken from the TI example but still its not Working

Has anyone faced this kind of problem in ADC ISR than just help me.

Now i am planning to start DMA for ADC data.

Thanks in Advance..

Regards,

Chintan