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8168内存修改问题



我将dm8168开发板的内存由EDJ1108 x4(1Gbit X 4) 更改为MT41J128M16(2GibtX2),寄存器SDRCR(datasheet的790页)的值应该如何设置?

我截的图不太好上传,直接附件上传

如上图所示,2个芯片的pagesize是不同的,开发板用的EDJ1108,pagesize为1KByte,column address是10位,但是寄存器配置为1024 word,采用MT41J128M16,column address也是10位,但是pagesize为2KB,此处应如何修改?

 

现在板卡有个问题,串口没打印信息,点灯发现在跳转到内存地址0x8000...跳转不成功,所以怀疑SDRAM是不是有问题

 

DDR相关.doc