I've defined SERIAL_CARD and undefined OSJTAG in the K40_tower.h file. However, I'm still unable to get data to output on my RS232 connector.
I have the RS232 connector connected to cable which then connects to a Serial to USB adpter. That adapter is plugged into my computer's USB port.
The funny thing is that I when I disconnect from the Tower Kit RS232 serial connector, I can connect to the COM port in HyperTerminal. When I reconnect to the RS2323 serial connector, I can no longer connect in Hyperterminal.