This is likely newbie error 
In contrast to AM64x SDK I cannot find sample CCS Projects for J721E so I am probably missing a define and facing this issue.
I have taken some code from the following location
ti-processor-sdk-rtos-j721e-evm-08_04_00_06/pdk_jacinto_08_04_00_21/packages/ti/drv/gpio/test/led_blink/src
I am facing a compilation error that complains that structures are unkown related to the interrupt router
Description Resource Path Location Type
#20 identifier "CSL_intr_router_cfgRegs" is undefined .ccsproject /MCU0 line 100, external location: <snip>/ti/ti-processor-sdk-rtos-j721e-evm-08_04_00_06/pdk_jacinto_08_04_00_21/packages/ti/csl/src/ip/intr_router/V0/csl_intr_router.h C/C++ Problem
Description Resource Path Location Type
#20 identifier "CSL_intr_router_intd_cfgRegs" is undefined .ccsproject /MCU0 line 101, external location: <snip>/ti/ti-processor-sdk-rtos-j721e-evm-08_04_00_06/pdk_jacinto_08_04_00_21/packages/ti/csl/src/ip/intr_router/V0/csl_intr_router.h C/C++ Problem
Upon inspection I cannot see where these are defined, and in the UDMA source it signals that this should be for HOST_EMULATION only? I could be very wrong about that but a segment of code in packages/ti/drv/udma/soc/j721e/udma_soc.c guards the define by this.
Otherwise, I cannot see what I must do to get further along. Guidance is super appreciated.
