Hello.

I have used a PIC18F2458 to make a joystick controller that features 6
12-bit analog axins and 36 buttons.

Everything is cool but there is something strange with the 6th analog axis
(which is AN8 because AN6 and AN7 are not implemented).
Basically I never read an analog value less than ~85, which corrspond to
around 100mV.

The analog input usually is connected to a potentiometer but I also tried
to connect it to a ground trace, as near as possible to the USB connector.
but I got the same result.

I was wondering what you guys think. Could it be a configuration error? The
other 5 channels work fine.

I can post the source code if necessary.

Thank you
Cristiano
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