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Reverse engineering Flash memory data
When the NAND Flash memory is used for booting up embedded systems, the structure usually looks similar to
Figure 30.
The first block is always loaded first to address 0x00000000 during the boot-
up process.
After that U-Boot code and images follow.
When the boot-loading code and U-Boot images are read only,
the JFFS2 file system is used for readingand writing.