I have searched through all the documentation and can't find any recommendations on how to hook up the 5 wires of a 5 wire touch screen controller to the analog inputs (AIN0 - 7) of the AM335x processor. It appears that there is some limitations on how the AIN0 - 7 signals can be muxed for measurement with respect to connection to sources VDDA, VSSA. How do the standard 5 wire drivers expect the signals to be hooked up to the AIN0 - 7 pins?
For reference, the 5 wire signal names are:
RT
RL
SG
LT
LL