For AM263x, real time debug is enabled by UART connection between CCS and AM263x. With real time debug, global variables can be added to expression window and ready for read/write during continuous run of the program. The connection is built by debug program in the listed files.
Even though there are four files listed here, there is only two functions required in application program. One is "SerialCmd_init()" called in initialization and the other is "SerialCmd_read()" called in background loop of BareMetal or low priority task of RTOS. This section focus on how to create the UART connection and how to launch real time debug in CCS.