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TMS320C6655 gel文件中无法无效cache

您好:

        6655在加载gel文件的过程中会出现使cache无效的情况,具体的接口为gel文件中的OnPreFileLoaded()接口下向L1PINV(01845028)
寄存器写1, 等待该寄存器变成0则代表cache进入 normal operation,但我写1后无法等到该寄存器变成0,就卡住了。

       想请教一下,什么情况下回引起L1PINV寄存器写1后并没有清cache,最后导致我无法都回0。

谢谢