CCS/TMS320F28027: FOR ADC CONFIGURATION

Tool/software: Code Composer Studio

Hello,

I am a newbie in microcontrollers. I am trying to write a code for driving 2 PWMS with 180 phase shift and a dead band between them. I got stuck at one point. my main requirement is

" start of ADC Conversion can be triggered at an appropriate time in every half PWM switching cycle ". to achieve this, what should I do?

I am including adc part of my code. please tell me what other changes I have to make in my code to achieve the above requirement.

Thank you

  ADC_setIntPulseGenMode(myAdc, ADC_IntPulseGenMode_Prior);               //ADCINT1 trips after AdcResults latch
        ADC_enableInt(myAdc, ADC_IntNumber_1);                                  //Enabled ADCINT1
        ADC_setIntMode(myAdc, ADC_IntNumber_1, ADC_IntMode_ClearFlag);          //Disable ADCINT1 Continuous mode
        ADC_setIntSrc(myAdc, ADC_IntNumber_1, ADC_IntSrc_EOC2);                 //setup EOC2 to trigger ADCINT1 to fire
        ADC_setSocChanNumber (myAdc, ADC_SocNumber_0, ADC_SocChanNumber_A4);    //set SOC0 channel select to ADCINA4
        ADC_setSocChanNumber (myAdc, ADC_SocNumber_1, ADC_SocChanNumber_A4);    //set SOC1 channel select to ADCINA4
        ADC_setSocChanNumber (myAdc, ADC_SocNumber_2, ADC_SocChanNumber_A2);    //set SOC2 channel select to ADCINA2
        ADC_setSocTrigSrc(myAdc, ADC_SocNumber_0, ADC_SocTrigSrc_EPWM2_ADCSOCA);    //set SOC0 start trigger on EPWM1A, due to round-robin SOC0 converts first then SOC1
        ADC_setSocTrigSrc(myAdc, ADC_SocNumber_1, ADC_SocTrigSrc_EPWM2_ADCSOCA);    //set SOC1 start trigger on EPWM1A, due to round-robin SOC0 converts first then SOC1
        ADC_setSocTrigSrc(myAdc, ADC_SocNumber_2, ADC_SocTrigSrc_EPWM2_ADCSOCA);    //set SOC2 start trigger on EPWM1A, due to round-robin SOC0 converts first then SOC1, then SOC2

        ADC_setSocSampleWindow(myAdc, ADC_SocNumber_0, ADC_SocSampleWindow_7_cycles);   //set SOC0 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)
        ADC_setSocSampleWindow(myAdc, ADC_SocNumber_1, ADC_SocSampleWindow_7_cycles);   //set SOC1 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)
        ADC_setSocSampleWindow(myAdc, ADC_SocNumber_2, ADC_SocSampleWindow_7_cycles);   //set SOC2 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)

    // Enable PWM clock
    CLK_enablePwmClock(myClk, PWM_Number_2);
    CLK_enablePwmClock(myClk, PWM_Number_1);

    // Setup PWM
    PWM_enableSocAPulse(myPwm2);
    PWM_enableSocAPulse(myPwm1);
    // Enable SOC on A group
    PWM_setSocAPulseSrc(myPwm2, PWM_SocPulseSrc_CounterEqualCmpAIncr);
    PWM_setSocAPulseSrc(myPwm1, PWM_SocPulseSrc_CounterEqualCmpAIncr);// Select SOC from from CPMA on upcount
    PWM_setSocAPeriod(myPwm2, PWM_SocPeriod_FirstEvent);
    PWM_setSocAPeriod(myPwm1, PWM_SocPeriod_FirstEvent); // Generate pulse on 1st event
    //PWM_setCmpA(myPwm2, 0x0000);                                         // Set compare A value
    //PWM_setPeriod(myPwm2, 0x05DC);
    //PWM_setPeriod(myPwm1, 0x05DC);     // Period = 1500 for 20Khz Sampling Frequency
    PWM_setCounterMode(myPwm2, PWM_CounterMode_Up);
    PWM_setCounterMode(myPwm1, PWM_CounterMode_Up);
    PWM_enableDeadBandHalfCycle(myPwm2);
   PWM_getDeadBandFallingEdgeDelay(myPwm1);
   PWM_getDeadBandRisingEdgeDelay(myPwm1);
   PWM_setDeadBandInputMode(myPwm1,3);
    PWM_setDeadBandPolarity(myPwm1,3);
    PWM_setDeadBandRisingEdgeDelay(myPwm1,31.25);
    PWM_setDeadBandFallingEdgeDelay(myPwm1,31.25);
   // PWM_setChoppingPulseWidth(myPwm1,50);
    CLK_enableTbClockSync(myClk);