IWR6843ISK, Rev D Get COM port numbers using Device Manager Color Name in Device Manager Generic Name Port Function Yellow User UART or Enhanced COM Port CFG Port Used for passing configuration data and firmware to the EVM Blue Data Port or Standard COM Port Data Port Used to send processed radar data output Set SOP Mode Flashing Mode S1.1 S1.2 S1.3 S1.4 S1.5 S1.6 S1 switch settings On Off On On..