Analog input problem

[burak450]

I wrote this but same problem continues.the value starts 111 gets bigger and bigger up to about 249-254

DEFINE LCD_DREG PORTB
DEFINE LCD_DBIT 0
DEFINE LCD_RSREG PORTB
DEFINE LCD_RSBIT 4
DEFINE LCD_EREG PORTB
DEFINE LCD_EBIT 5
DEFINE LCD_BITS  4
DEFINE LCD_LINES 2
DEFINE OSC 4                                                                       
DEFINE ADC_BITS     8       
DEFINE ADC_CLOCK  3     
DEFINE ADC_SAMPLEUS 100
deneme var byte
ADCON1=2
trisa.4=1
CMCON=7 
basla:
LCDOUT $FE,1 
adcin 4,deneme
LCDOUT $fe,2,#deneme," "
pause 3000
goto basla

[mister_e]

try ADCON1=%11100010

[burak450]

i tried this it worked !

deneme var byte
ADCON1=0
trisa.5=1
CMCON=7
basla:
LCDOUT $FE,1
adcin 4,deneme
LCDOUT $fe,2,#deneme," "
pause 3000
goto basla


after that i tried this it didnt work
values is getting smaller now..
its so weird

bilgi var byte
red var byte
green var byte
blue var byte
ADCON1=0
trisa.5=1
trisa.1=1
trisa.2=1
trisa.3=1
trisa.0=1
CMCON=7

TRISB=0
PORTB=0
TRISC=0
TRISD=0
LCDOUT $FE,1



yap:

high PORTD.7
PAUSE 750
ADCIN 5,bilgi
red=bilgi
pause 5
low PORTD.7


high PORTD.6
PAUSE 750
ADCIN 5,bilgi
blue=bilgi
pause 5
low PORTD.6


high PORTD.5
PAUSE 750
ADCIN 5,bilgi
green=bilgi
pause 5
low PORTD.5

CALL GOSTER


pause 7000
goto yap


GOSTER:
LCDOUT $fe,2,#red," ",#blue," ",#green," "


Where am i wrong this final code???

[mister_e]

In the first you have ADCIN 4, the second you have ADCIN 5.

What is your analog source? Any available schematic ?

You want to use GOSUB instead of CALL. don't forget the RETURN as well.

[burak450]

sorry. i put code there imcomplete.there is a "return" at the end.i saw this picture .there is RA5 after RA3.thats why i used porta.5.do you have any idea why did it work with first code and didnt with second???

[HYETİK]

I saw and I experience that my friend's a pin of pic16f877 was not working. Only one pin was not working others are works well may be u should change your pic

so weird

[HYETİK]

when my friend changed his MCU hic circuit worked well.
I was shocked when I saw it