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绝对可以。
唯独要注意的一点是,选择NAND型号时,下面的时序要求:
18.2.5.6.8 Interfacing to a Non-CE Don't Care NAND Flash
As explained in Section 18.2.5.6.4, the EMIFA does not support NAND Flash devices that require the chip
select signal to remain low during the tR time for a read. One way to work around this limitation is to use a
GPIO pin to drive the CE signal of the NAND Flash device. If this work around is implemented, software
will configure the selected GPIO to be low, then begin the NAND Flash operation, starting with the
command phase. Once the NAND Flash operation has completed the software can then configure the
selected GPIO to be high.
你好:
我用的是OMAPL138,外挂的NANDFlash是MT29F32G08ABABA,该芯片支持ONFI 2.2版本,NAND大小4GB,Pagesize 8KB。用来存boot和文件系统,调试uboot的时候发现程序存在异常,能够正常运行的uboot,不能随意修改代码,比如增加一行或者删除一行无关的代码,boot就无法启动或者启动一半后重启。
想知道OMAPL138 是否是不支持8KB Pagesize 的NAND启动,但是手册里面又讲了是完全支持 ONFI协议的啊!
谢谢!
坐等,急!非常感谢!