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调试cc2530的时候，运行一段时间会有“IDATA overflow“这样的提示，想请教下出现这种状况是什么原因，如何避免？
idata (0x00-0xFF)
An area accessible via register indirect addressing of the assembler instructions.
所以有的时候当你打开了Watch以后，就会出现这样的问题。这是跟编译器简介读取寄存器的时候溢出。请检查有没有频繁进入后台中断的情况，比如串口。
