TMS320C6678: XDS560V2指示灯不亮，设备管理器检测不到设备 The XDS560V2 indicator is not on, and the Device Manager cannot detect the device

通电后，插上层仿真器XDS560V2指示灯不亮，设备管理器检测不到设备插入。插下层XDS100V1只检测到有USB口插入，没有XDS100设备显示。

After power on, the indicator of the upper layer simulator XDS560V2 does not light up, and the Device Manager cannot detect the device insertion. Inserting the XDS100V1 in the lower layer only detected a USB port and no XDS100 device display.