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换板子后DDR3的数据一直在变化



用的6678,两块板子一样(相同的设计),相同的工程,一块正常,另一块DDR3里的数据一直变化。

下图是我将0x94000000~0x940000FF置0,并把0x94000000写成0x0068FF12后数据的一些变化情况:

现在完全没有头绪,大佬们能指点一下吗?或者给些调试的建议?谢谢!