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28335 ADC understanding

Gajanan Bhatarkar
Prodigy 80 points

Hi,

In 28335 ADC, I am setting following -

Setting all 8 channels on both sequeciers at software trigger :

 AdcRegs.ADCMAXCONV.bit.MAX_CONV1 = 0x7; // Set up all 8 conversions
 AdcRegs.ADCMAXCONV.bit.MAX_CONV2 = 0x7; // Set up all 8 conversions

Enabling interrupts on both sequences :

 AdcRegs.ADCTRL2.bit.INT_ENA_SEQ1 = 1;    // Enable interrupt on SEQ1

 AdcRegs.ADCTRL2.bit.INT_ENA_SEQ2 = 1;    // Enable interrupt on SEQ2

In this case, I am seeing that it generates interrupt SEQ1INT_ISR first, then SEQ2INT_ISR and then ADCINT_ISR.

Here why does it generates ADCINT_ISR ?  Is it not enough to read all converted values form SEQ1 and SEQ2 respectively.  What are we supposed to do in ADCINT_ISR ?