Last time I checked BB AI isn't supported.
The JTAG may be over FDTI or direct connection. check docs.
It is only used for debugging not installing.
If it's not FTDI you may also need to buy the cheapest JTAG
It's been that way for for many years CCS has become free and RTOS are free to use but only on the official TI Dev board.
You think they spend money porting to every ameatuers board and sell no chips?
🤑😝 Maybe they port to your board too.
Verify that here in supported hardware of videos it may have changed.
http://www.ti.com/tool/PROCESSOR-SDK-AM57X
If I remember after watching videos you can run RTOS on both ARM and DSP cores.
Process installing isn't difficult you must be able to read and Google and somehow avoid bad advise from responder's who debug using serial Port
Good Luck 👍