PIC18F14K50 ADC problem

[picmilan]

Hello again!

I am trying to get ADC working using AN7 pins but I keep getting zero for PORTC.7 and 20 when I use ADCIN 7.I am using a 24 MHz crystal.
It worked with PIC18F2450 but doesn't work with PIC18F14K50.


Here is my code:

DEFINE LOADER_USED 1
DEFINE HSER_RCSTA 90h
DEFINE HSER_TXSTA 24h
DEFINE HSER_BAUD 115200
DEFINE HSER_SPBRG 12
DEFINE HSER_CLOERR 1

DEFINE OSC 24

ADCON0 = %00011100
ADCON1 = %00000000
ADCON2 = %10110101

ANSEL = %10001000
ANSELH = %00000011

TRISC.4 = 0            'led RC4
TRISC.6 = 1

TRISC.0 = 0
TRISC.1 = 1
TRISB.5 = 1              'RX
TRISB.7 = 0              'TX
adcVal VAR Byte
tx1 VAR PORTB.7
rx1 VAR PORTB.5
   
LED VAR PORTC.4   
Pause 1000
MoveX = 0
mainloop:
    
   
   high LED
   Pause 1000 
   ADCIN 7, adcVal 
    HSEROUT[adcVal]
   low LED
   Pause 1000
   Pause 200
   Goto mainloop

I thing the problem is configuration again.Would appropriate any help.

[richard]

ADCON2 = %10110101

adcin does not support acqt

ADCON2 = %10110101

@24 MHz fosc/16 is out of specs use fosc/32

ADCIN 7, adcVal

without setting any defines is asking for trouble





DEFINE ADC_BITS 8
DEFINE ADC_CLOCK 3 or 2

DEFINE ADC_SAMPLEUS 50