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Actually i am working with NOR flash. I am getting confused about block read and write from NOR flash.

  • From my understand block read and write means writing and reading complete sector of the flash. Is it correct? Please anyone help to clarify my doubt.
gerhard d.
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Chithra M G
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  • If you want to know on a low level, refer to the datasheet of your flash. If you want to use it in your system, simply rely on the driver of your `/dev/mtd` device and use utilities like `flashcp`. – Philippos Jul 21 '22 at 05:06
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    I’m voting to close this question because this is not about Unix&Linux. – Marcus Müller Jul 21 '22 at 08:26

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A NOR flash chip may be read-accessed in a random fashion, you do not need to read the whole block.

When it comes to writing, you will always have to erase the whole block before writing. The need for erasing before writing is also true for NAND flash chips.

gerhard d.
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