void main(void)
{
        ...
        InitAdc();// Power up bandgap/reference/ADC circuits

	GPIOinit();//

	I2C_Init();

	...
	SetupADC();
        ...
}

void InitAdc(void)
{
    extern void DSP28x_usDelay(Uint32 Count);

    // *IMPORTANT*
    // The Device_cal function, which copies the ADC calibration values from TI reserved
    // OTP into the ADCREFSEL and ADCOFFTRIM registers, occurs automatically in the
    // Boot ROM. If the boot ROM code is bypassed during the debug process, the
    // following function MUST be called for the ADC to function according
    // to specification. The clocks to the ADC MUST be enabled before calling this
    // function.
    // See the device data manual and/or the ADC Reference
    // Manual for more information.

    //    EALLOW;
    //    SysCtrlRegs.PCLKCR0.bit.ADCENCLK = 1;
    //    (*Device_cal)();
    //    EDIS;

    // To powerup the ADC the ADCENCLK bit should be set first to enable
    // clocks, followed by powering up the bandgap, reference circuitry, and ADC core.
    // Before the first conversion is performed a 5ms delay must be observed
    // after power up to give all analog circuits time to power up and settle

    // Please note that for the delay function below to operate correctly the
    // CPU_RATE define statement in the DSP2803x_Examples.h file must
    // contain the correct CPU clock period in nanoseconds.
       EALLOW;
	//Initialise ADCCTL1
	AdcRegs.ADCCTL1.bit.ADCBGPWD  = 1;      // Power ADC BG
	AdcRegs.ADCCTL1.bit.ADCREFPWD = 1;      // Power reference
	AdcRegs.ADCCTL1.bit.ADCPWDN   = 1;      // Power ADC
	AdcRegs.ADCCTL1.bit.ADCENABLE = 1;      // Enable ADC
	AdcRegs.ADCCTL1.bit.ADCREFSEL = 0;      // Select Internal BG
	//AdcRegs.ADCCTL1.bit.ADCREFSEL = 1;      // Select outside reference
	AdcRegs.ADCCTL1.bit.INTPULSEPOS = 1;    // INT Pulse Generated After converting

      EDIS;

    DELAY_US(ADC_usDELAY);         // Delay before converting ADC channels	
}

void SetupADC(void)
{
	Uint16 indx;
	int32 temp;
	EALLOW;
	AdcRegs.ADCINTFLGCLR.all=0x1FF;
	AdcRegs.INTSEL3N4.bit.INT3E=1;			//Enable ADCINT3
	AdcRegs.INTSEL3N4.bit.INT3SEL=5;			//EOC5 Trigger ADCINT3
	
	AdcRegs.ADCSAMPLEMODE.all=0xFF;			//Simultaneous Sampling Mode ??????????
	AdcRegs.ADCINTSOCSEL1.all=0x0000;		      
	AdcRegs.ADCINTSOCSEL2.all=0x0000;

	//SOC0
	AdcRegs.ADCSOC0CTL.bit.ACQPS=6;			//Sample Window Size
	AdcRegs.ADCSOC0CTL.bit.CHSEL=2;			//Channel Select INA2--GND
	AdcRegs.ADCSOC0CTL.bit.TRIGSEL=9;		     //Tiggger Source -PWM3-SOCA
	//SOC1
	AdcRegs.ADCSOC1CTL.bit.ACQPS=6;
	AdcRegs.ADCSOC1CTL.bit.CHSEL=2;			
	AdcRegs.ADCSOC1CTL.bit.TRIGSEL=9;
	//SOC2
	AdcRegs.ADCSOC2CTL.bit.ACQPS=6;
	AdcRegs.ADCSOC2CTL.bit.CHSEL=0;			
	AdcRegs.ADCSOC2CTL.bit.TRIGSEL=9;
	//SOC3
	AdcRegs.ADCSOC3CTL.bit.ACQPS=6;
	AdcRegs.ADCSOC3CTL.bit.CHSEL=0;			
	AdcRegs.ADCSOC3CTL.bit.TRIGSEL=9;
	//SOC4
	AdcRegs.ADCSOC4CTL.bit.ACQPS=6;
	AdcRegs.ADCSOC4CTL.bit.CHSEL=1;			
	AdcRegs.ADCSOC4CTL.bit.TRIGSEL=9;
	//SOC5
	AdcRegs.ADCSOC5CTL.bit.ACQPS=6;
	AdcRegs.ADCSOC5CTL.bit.CHSEL=1;			
	AdcRegs.ADCSOC5CTL.bit.TRIGSEL=9;
	//SOC6
	AdcRegs.ADCSOC6CTL.bit.ACQPS=6;
	AdcRegs.ADCSOC6CTL.bit.CHSEL=4;			
	AdcRegs.ADCSOC6CTL.bit.TRIGSEL=9;
	//SOC7
	AdcRegs.ADCSOC7CTL.bit.ACQPS=6;
	AdcRegs.ADCSOC7CTL.bit.CHSEL=4;			
	AdcRegs.ADCSOC7CTL.bit.TRIGSEL=9;

	// Map the Interrupt to and ISR routine.
	PieVectTable.ADCINT3 = &adc_isr;
	// Enable ADCINT in PIE
	PieCtrlRegs.PIEIER10.bit.INTx3 = 1;
	IER |= M_INT10; // Enable CPU Interrupt 1
	EDIS;
}