Intermec ck1 Reference Guide
Appendix A —
µClinux System
CK1 SDK Programmer’s Reference Manual
325
Detail NAND Layout (continued)
Name
Blocks
Use
File
System
System
Mount
Point
Point
config
401 … 431
User configuration
jffs2
/etc/config
home
432 … 1023
User application and data area
jffs2
/home
The block size mentioned above is 8KB.
The default RAMDISK is 1MB and can be customized in a range of
512KB to 2MB. Customization can be done by API or BIOS
configuration, which is described in the next section.
512KB to 2MB. Customization can be done by API or BIOS
configuration, which is described in the next section.
Programs in NOR Flash
There are four programs in the NOR Flash area: Bootloader, BIOS,
Diagnostic Program, and Flash Writer. Since the NOR Flash is an
executable device, the Bootloader and BIOS are directly executed in this
place, but data and bss sections are copied to the SDRAM. The Diagnostic
Program and Flash Writer are copied to SDRAM to execute. The
following illustration shows the flow that links these programs. The
following illustration also shows a flow chart of a cold boot.
Diagnostic Program, and Flash Writer. Since the NOR Flash is an
executable device, the Bootloader and BIOS are directly executed in this
place, but data and bss sections are copied to the SDRAM. The Diagnostic
Program and Flash Writer are copied to SDRAM to execute. The
following illustration shows the flow that links these programs. The
following illustration also shows a flow chart of a cold boot.