启用实时模式Enable realtime mode调试时出现以下错误提示，关闭不选择这个模式可以写入程序调试。字面上的意思是说我的XDS100驱动有问题。因为是新手对这个平台不太了解，还请指教一二。我是在RAM中运行程序，用得是XDS100V3。
C28xx: Error connecting to the target: (Error -151 @ 0x0) One of the FTDI driver functions used during the connect returned bad status or an error. The cause may be one or more of: no XDS100 is plugged in, invalid XDS100 serial number, blank XDS100 EEPROM, missing FTDI drivers, faulty USB cable. Use the xds100serial command-line utility in the 'common/uscif' folder to verify the XDS100 can be located. (Emulation package 6.0.83.1)
