Other Parts Discussed in Thread: SYSCONFIG
Tool/software:
In the mcu_plus_sdk_am263px_10_01_00_34/examples/networking/lwip/icss_emac_lwip/
directory, there are two variants (CC/LP) of the SysConfig files, both of which have automatic pin selection for the UART.
However, this does not work with the built-in XDS110 serial port. The UART needs to be manually assigned (and pinned) to the correct pins.