DSP5509A程序在CCS3.3上运行时断开与仿真器连接

CCS运行程序时将数组加进watch window老是断开与仿真器连接出现这样的错误，Trouble Reading Memory Block at 0x436 on Page 0 of Length 0x2c0: Error 0x80000002/-1143 Fatal Error during: Memory,  The memory at 0x000004A4 continually indicated it was 'not ready' All memory operations currently in progress were aborted in order to regain control of the processor. This is considered a catastrophic event, but the debugger should  still be able to access memory and CPU registers. System state has been altered.  It is strongly advised that the processor should be reset before resuming execution,   Sequence ID: 65 Error Code: -1143 Error Class: 0x80000002
有大神知道是什么原因吗?一星期了，一点头绪都没有。

很详细，做课程设计就靠这个了。