F28388D通过EMIF1_CS0n,外扩两片SDRAM,两块SDRAM的连接方式如下图所示,两块32MB的SDRAM,连接到EMIF1_CS0n。只有DOMH、DQML和Data数据引脚需要区分一下,其他的引脚都是共用的吧,这样连接,请帮忙检查一下是否逻辑上,有问题
初次设计28388D,特来请教
感谢!
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关于EMIF的引脚分配,您可以查看 用户指南
以及 12.5.3 EMIF Signal Descriptions 和 12.5.5.2 Interfacing to SDRAM
您现在是想2个SDRAM都连接到EMIF1_CS0n?
那您可以尝试使用EMIF1 and EMIF2 2个接口
This device supports dual-core architecture; in order to have a dedicated EMIF for each CPU subsystem, the device supports two EMIF modules — EMIF1 and EMIF2. Both modules are exactly the same with the same feature set, but have different address/data sizes. EMIF1 is shared between the CPU1 and CPU2 subsystem, whereas EMIF2 is dedicated to the CPU1 subsystem.