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F28M35H52C: C2000™︎ 微控制器论坛

Part Number: F28M35H52C

我目前在C28端能读到外部RAM的数据,但不能进行写操作,在M3端能读能写。我怎么设置,能让C28能写外部RAM(EPI0扩展的)。

在SPRU22中通过设置0x400F-B930寄存器使能C28写外部RAM,

但在0x400F-B930又是只读寄存器。看不明白,到底如何设置。