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5416如何验证直接扩展的外部FLASH能用?



自己用5416做了一块板子,外扩了一个flash芯片,参考了网上的一些检测例程,但是在CCS的momry的program的窗口的相应的地址空间都是“-------”,怎么才能先让DSP读到这篇flash能,好像在没对flash操作以前应该是“FFFF”的吧,求指导