A simple well documented hardware uart "Hello World" example. Updated, thanks for member comments 3/13/13
This code is for launchpad rev 1.5
This is hardware UART, your launchpad jumpers must be set for hardware UART
The TI TUSB3410 is a TERRIBLE usb-> UART chip and is very buggy on WIN7 64bit. If your still having issues, it could be a driver issue. Try on XP or use a different USB -> serial device.
//Nate Zimmer UART example
// Press button to print hello to terminal