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SPI Nor Flash

Other Parts Discussed in Thread: OMAP-L138

我用的是OMAP-L138的处理器,SPI Flash用的是spansion的 Nor Flash芯片-S25FL256s,容量是32M,8个引脚的封装没有Reset引脚。

通过a3-byte (24 bits)ddressing from command + Bank Address Register寄存器的方式来使用16M以后的空间,当访问16M以后的空间的时候,硬件复位处理器,之后读不到uboott,断电重启后可以。

请问是什么问题?怎么解决?谢谢!