A/D from 16F873

[Francesc]

Hi all, is very strange, we try to read 4 ports analogs from 16F873, but the readings not are corrects.
We try to enter differents voltages, here a sample:
0,0 V..0000 bit
1,0 V..0190 bit
2,0 V..0177 bit
3,0 V..0121 bit
4,0 v..0079 bit
4,5 v..0181 bit
5,0 v..1023 BIT

We include an small part of my code to try found the error.
The compiler version is 2.732 #10544.
Please, help ..

#include <16f873.h>
#device ADC=10
#fuses xt,nowdt,put,nolvp
#use delay(clock=4000000)
#use RS232(BAUD=9600,BITS=8,XMIT=PIN_C6,RCV=PIN_C7)
#bit ADFM_BIT=0x9F.7
LONG T,K1,K2,K3,K4,K;
main()
{
SETUP_ADC_PORTS(A_ANALOG);
//SETUP_ADC(ADC_CLOCK_DIV_8);
SETUP_ADC(ADC_CLOCK_INTERNAL);
ADFM_BIT=1;
while(1)
{
SET_ADC_CHANNEL(0);
delay_ms(10);
T=READ_ADC();
delay_ms(50);

SET_ADC_CHANNEL(1);
delay_ms(10);
T=READ_ADC();
delay_ms(50);

SET_ADC_CHANNEL(2);
delay_ms(10);
T=READ_ADC();
delay_ms(50);

SET_ADC_CHANNEL(5);
delay_ms(10);
T=READ_ADC();
delay_ms(50);
void display();
}
}

[PCM programmer]