ADCON0=0x07;    // enable ADC channel 0	with immediate start
ADCON1=0x07;    // enable ADC channel 1	with immediate start
ADMODA=0x44;    // ADC0 & ADC1 auto scan continous conversion
ADMODB=0xE0;    // Set ADC clock divisor 7.3728MHz/8
ADINS=0x44;     // (AD12--P0.3) (AD02--P2.1)