tds/xds 510-u***2.0仿真器连接问题

安装了tds/xds u***2.0驱动，但不管连接tds仿真器还是xds仿真器，电脑上均显示的是xds510 的设备。每次打开CCS3.3进行连接仿真器的操作时，都会提示下面的错误：an't Initialize Target CPU:Error 0x80002240/-180
Fatal Error during: Initialization, OCS, Control,
This error was generated by TI's USCIF driver.

SC_ERR_CTL_NO_TRG_POWER <-180>
The controller has detected a target power loss.
The user may have failed to turn-on or connect its source.


I/O Port = 240

Board Name: C5402 XDS510 Emulator
Cpu Name: CPU_1

Abort:                Close Code Composer Studio.
Retry:                Try to initialize the target again.
Ignore:                Ignore the initialization error and start
                without target debugging access.
Diagnostic:        Run diagnostic utility.

这个问题已经困扰我好几天了，有大神能够帮助我的吗？