I am evaluating AN12169SW in MIMXRT1050EVK, Free Master 2 support CAN port, there is a CAN port in the EVK, why this option is disabled in code? Can I enable it by #define FMSTR_USE_FLEXCAN (1)? What hardware, USB to CAN adopter do I need for CAN port to my PC? Is there any recommended adopter? Are there changes in freemaster_can.c needed? Thanks in advance!