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J
jian
Visitor II
March 14, 2014
Question

how to access nand flash?

  • March 14, 2014
  • 1 reply
  • 768 views
Posted on March 14, 2014 at 22:19

Hi,

I am use STR911 to access external NAND flash ST NAND08GW3B. Where can I find information to use STR911 EMI to write and read from NAND flash? Is there any NAND flash driver for ST NAND08GW3B I can download?

Thanks, Jian
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    1 reply

    T
    Tesla DeLorean
    Graduate II
    March 20, 2014
    Posted on March 20, 2014 at 05:29

    It's been a while since working on STR9 parts, but I think you need to refer to the documentation and schematics for your board. NAND parts act more like hard drives than memory, so you'll only see a few addresses, and data/command access, and ready signals.

    For code examples for NAND devices, you might want to look at uboot/linux sources for generic code to identify and access the NAND devices. Other freely available NAND code may also be usable, you'd just have to define a handful of addresses used to access the parts. The FMI configuration would be a matter of chip selects (memory region), and signal timing, which would depend on the part's parameters, and the operational frequency of the STR9
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