void ADCInit(void)
{ 	AD1CON1 = 0;			// turn ADC OFF

	AD1CON1bits.SSRC = 7;	// Internal counter ends sampling
    //and starts conversion (auto convert)
	AD1CON1bits.ASAM = 1;	// Sampling begins immediately after
    //last conversion completes; SAMP bit is automatically set.
	AD1CON2 = 0;

	AD1CON2bits.CSCNA = 1;	// Scan inputs
	AD1CON2bits.SMPI = 3;	// Interrupts at the completion
    //of conversion for each (N+1) sample/convert sequence

	AD1CON3 = 0;

	AD1CON3bits.SAMC = 15;	// Auto-Sample Time bits N Tad	
	AD1CON3bits.ADCS = 8;	// Tad = N Tcy
	AD1CHS = 0;	

	AD1PCFG = ~(1<<0 | 1<<1 | 1<<6); // 0-analog 1-digital
	AD1CSSL = (1<<0) | (1<<1) | (1<<6) ; // select scan input V12,
    //V6, Irele
	AD1CON1bits.ADON = 1; 	// turn ADC ON
}