28335加密后CCS4.0连不上了，求大神帮忙！

如题，使用flash加密功能后 断电，再上电，板子就连不上了，具体的错误码如下：

Error connecting to the target:
Error 0x80000200/-1041
Fatal Error during: OCS,
Device driver: Problem with the Emulation Controller.
It is recommended to RESET EMULATOR. This will disconnect each
target from the emulator. The targets should then be power cycled
or hard reset followed by an emureset and reconnect to each target.

查了好多资料，都没有解决，请大家帮助，谢谢！