XDS100v3仿真器连接28335时出现‘-233’的错误

[Start]

Execute the command:

%ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -F inform,logfile=yes -S pathlength -S integrity

[Result]

—–[Print the board config pathname(s)]————————————

C:\Users\ADMINI~1\AppData\Local\.TI\693494126\
0\0\BrdDat\testBoard.dat

—–[Print the reset-command software log-file]—————————–

This utility has selected a 100- or 510-class product.
This utility will load the adapter 'jioserdesusbv3.dll'.
The library build date was 'Oct 3 2012'.
The library build time was '21:58:41'.
The library package version is '5.0.872.0'.
The library component version is '35.34.40.0'.
The controller does not use a programmable FPGA.
The controller has a version number of '4' (0x00000004).
The controller has an insertion length of '0' (0x00000000).
This utility will attempt to reset the controller.
This utility has successfully reset the controller.

—–[Print the reset-command hardware log-file]—————————–

The scan-path will be reset by toggling the JTAG TRST signal.
The controller is the FTDI FT2232 with USB interface.
The link from controller to target is direct (without cable).
The software is configured for FTDI FT2232 features.
The controller cannot monitor the value on the EMU[0] pin.
The controller cannot monitor the value on the EMU[1] pin.
The controller cannot control the timing on output pins.
The controller cannot control the timing on input pins.
The scan-path link-delay has been set to exactly '0' (0x0000).

An error occurred while hard opening the controller.

—–[An error has occurred and this utility has aborted]——————–

This error is generated by TI's USCIF driver or utilities.

The value is '-233' (0xffffff17).
The title is 'SC_ERR_PATH_BROKEN'.

The explanation is:

The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.
An attempt to scan the JTAG scan-path has failed.
The target's JTAG scan-path appears to be broken
with a stuck-at-ones or stuck-at-zero fault.

[End]

你好，TI工程师：

        最近使用XDS100v3仿真器连接28335时出现‘-233’的错误，我用的是CCS5.3的软件，报错内容如上所示。以前使用该仿真器连接同一个板子都是成功的，就是现在出现了这个问题。我尝试着用该仿真器连接另一个28335的板子成功了，是一样的ccs5.3的软件，一样的仿真器，一样的程序，一样的配置。所以我怀疑是这个28335的板子的问题，还有报错显示：

The controller cannot monitor the value on the EMU[0] pin.
The controller cannot monitor the value on the EMU[1] pin.
The controller cannot control the timing on output pins.
The controller cannot control the timing on input pins.

这四行的意思是说DSP 的EMU[0] pin ，EMU[1] pin 引脚的问题，难道是DSP已经损坏了，如何测试DSP是否坏掉呢？