DFI KS200 Manual - Manual (Page 24)

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24
Appendix A
Appendix A Software Support
CD Source
Appendix A - Software Support
Demo Image
SD Card
NAND
MLO
EBOOTSD.nb0
NK.bin
Tool
Manual
User Guide
TI SDCard Utility
NK.bin
XLDRNAND.bin
EBOOTND.bin
Standard
MLO
The initial bootstrap loader is located in a single file called XLDRSD.nb0. The build process
creates the MLO file from the XLDRSD.nb0. This file is the SD boot version of xldr.
EBOOTSD.nb0
The build process also creates the EBOOTSD.NB0 file. This file is the exact representation of
EBOOT as it must appear in memory. This file is used with MLO when booting from SD Card.
XLDRNAND.BIN
The initial bootstrap loader is located in a single file called XLDRNAND.BIN. This file also uses
the proprietary Microsoft .BIN file format. The bootloader understands this file format and the
unique XLDR storage requirements in NAND Flash.
EBOOTNAND.BIN
The primary bootloader is located in a single file called EBOOTNAND.BIN. This file also uses
the proprietary Microsoft .BIN file format. When the bootloader detects this file, it properly
programs itself after the XLDR region in the reserved portion of NAND Flash.
NK.BIN
The operating system image is located in a single file called NK.BIN. NK.BIN is structured in a
proprietary Microsoft file format containing data records. This file cannot be executed directly
by the CPU nor can it generally be programmed directly into flash. However the bootloader
is designed to understand this format and it parses the data and copies it to the correct
destination in memory. NK.BIN is the file that Platform Builder will download to the bootloader
running on the TS200.
The bootloader will copy the OS image to its destination in RAM and then jump to the image
entry point. At that point control has passed from the bootloader to the initialization routines
in the operating system image. The build process will optionally create a second operating
system image file called NK.NB0. This file will only be created if the correct options are
defined in the config.bib configuration file. NK.NB0 is an exact copy of the operating system
image as it should exist in memory. For more detail descriptions on the Windows CE system,
images refers to official Microsoft Windows CE documentations.