How to ADC

How to ADC ?

setup_adc_ports(ALL_ANALOG);
setup_adc(ADC_CLOCK_DIV_64);
setup_psp(PSP_DISABLED);
setup_spi(FALSE);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_INTERNAL|T1_DIV_BY_1);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);

set_adc_channel(0);
delay_ms(800);
volt = read_adc();


lcd_gotoxy(1,1);
printf(lcd_putc, "\fVoltage : %3.1f " , volt );
delay_ms(500);


why cant this work?

hi,
I dont do 'C', but dont you have to init the LCD somewhere in the program.?