I am checking at a BSDL file "sprm645.bsd" of TMS320F28375DPTPT that can be downloaded from this URL.
https://www.ti.com/product/TMS320F28375D/toolssoftware
According to the BSDL file, pin 17 is VPP but not GPIO99.
Boundary scan can not be done with this BSDL file, but is it correct?