Lpc2000

Hi,

Im using the onboard ADC for a project I am working on. However I 
seem to be getting some strange values and it isnt acting as I 
expect it to.

Two things mainly:

One, when I take a voltage input of a constant voltage (0.5 * 3.3V) 
I get fluctuating values from the ADC which I output to 
hyperterminal. This is very strange as they should be all the same 
value.

Two, when I take the value from ADDR I place it into an int. However 
I am saving these values into an 8-bit value array so I have to 
shift right twice (due to the ADC being 10-bit). Or so I thought. 
The values I get from this array seem to be about right, but the 
resolution is in steps of 8 or 16 not the expected 1. This is no 
good for my application. I have also tried dividing by 4, but this 
produces even stranger results! 

Any help would be appriciated.

Thanks,

FG