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Setting up UART

Hi,

I'm trying to setup UART communication over usb. I am using a EK_TM4C123GXL Stellaris LaunchPad. I have imported the uartconsole_TivaTM4C123GH6PM example project into my workspace and the project compiles and run just fine. However when I try to copy the uart code into my project the compiler complain with the following messages:

Description Resource Path Location Type
#10010 errors encountered during linking; "robot.out" not built robot C/C++ Problem
<a href="file:/C:/CCS/CCs_5_4_0_00091/ccsv5/tools/compiler/dmed/HTML/10234.html">#10234-D</a> unresolved symbols remain robot C/C++ Problem
unresolved symbol USBDCDCInit, first referenced in ./uart/USBCDCD_LoggerIdle.obj robot C/C++ Problem
unresolved symbol USBBufferWrite, first referenced in ./uart/USBCDCD_LoggerIdle.obj robot C/C++ Problem
unresolved symbol USBBufferSpaceAvailable, first referenced in ./uart/USBCDCD_LoggerIdle.obj robot C/C++ Problem
unresolved symbol USBBufferInit, first referenced in ./uart/USBCDCD_LoggerIdle.obj robot C/C++ Problem
unresolved symbol USBBufferFlush, first referenced in ./uart/USBCDCD_LoggerIdle.obj robot C/C++ Problem
unresolved symbol USBBufferEventCallback, first referenced in ./uart/USBCDCD_LoggerIdle.obj robot C/C++ Problem
unresolved symbol USB0DeviceIntHandler, first referenced in ./uart/USBCDCD_LoggerIdle.obj robot C/C++ Problem

I've modified the project config file so my project has all the necessary config. Even when I navigate to the unresolved symbols and use CCS to "open declaration", it comes up the the declaration. What could be going wrong?

Thanks,

Evan