重装了一下系统，只能重装CCS了，结果出问题 了，现在板子和仿真器怎么都连接不上了，不知道是什么原因，总是出现如下问题
Error connecting to the target:
Error 0x80002240/-121
Fatal Error during: Initialization, OCS, Control,
This error was generated by TI's USCIF driver.
SC_ERR_CMD_HANDLE <-121>
A bad controller handle has been given to a function,
either before attempting to open the controller, or after
having opened the controller and ignored its error status.
Valid controller handles are generated when attempts
to open the controller return a clean error status.
I/O Port = 240
Board Name: C5502 XDS510 Emulator
Cpu Name: CPU_1
Abort: Close Code Composer Studio.
Retry: Try to connect to the target again.
Cancel: Remain disconnected from the target
Diagnostic: Run diagnostic utility.我认是，是不是硬件USB驱动没有安好啊？怎么处理这样的问题？记得以前也常出现这个错误
