TMS320F2800137: where is the SCI-related routines ?

Part Number: TMS320F2800137
Other Parts Discussed in Thread: C2000WARE,

I am using tms320f2800137 luachxl. How can I find the SCI-related routines in the C2000Ware_MotorControl_SDK_5_04_00_00 example program? My goal is to output debugging information and send instructions to control the motor.image.png