error reading analog pins

[PCM programmer]

Here is a demo program which shows how to read the analog voltage
(0 to +5v) on pin A0 and display it on an LCD:

[dyeatman]

If PCMs' program doesn't do the trick check the ADCON0/ADCON1 and
TRISA registers to see how they are set.

I just got through with a project using the 18F442 on version 4.132 and had
to set the ADCON registers manually.

See page 181 of the datasheet for the proper register settings.

// define the registers
#byte ADCON0 = 0xFC2
#byte ADCON1 = 0xFC1

// set the bits
ADCON0=xx
ADCON1=xx
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