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问题:使用同步EMIF访问SDRAM,配置为16位读写模式,读数据时可以访问到正确的地址及数据、写数据时,bank地址切换不正确:
具体表现为下图:读数据与写数据分别进行,先读再写,读数据时正确,写数据时对应的bank地址切换不过来,导致某些地址访问出错;
请问是否是寄存器配置不对还是什么原因?
DSP中的配置如下:
Emif1Regs.SDRAM_TR.all = 0x31114610;
Emif1Regs.SDRAM_RCR.all = 0x30E;
Emif1Regs.SDRAM_CR.all = 0x004620;