C UART Library?

Is there a UART library in C for the ADSP-BF537 or BF537 Ez Kit Lite? So far I have seen the uartlib.asm in the sample programs. Also in the EE-347, there is a provided UART library in C but for some reason I can't build the sample project it's in. I also tried using the said uart library with its dependencies in my project but it still doesn't work. Does anyone have another UART library in C which I may use? I'm using Visual DSP 5.0. Thank you!