If I had to bet what the problem is, you're somehow clobbering the function of the RX pin. I'm not sure how you would, but you can check the function of the pin by calling 'getFunction()' on the pin, just like you would set it by calling 'function'. This will spit out the numeric value for the setting, which you can cross reference from either the Reference manual, or more easily, the pin_constants.h file.
-Dan
MOD54415 UART9
Re: MOD54415 UART9
Dan Ciliske
Project Engineer
Netburner, Inc
Project Engineer
Netburner, Inc