DA-660-8/16-LXUser’s Manual
Programmer’s Guide
5-2
Flash Memory Map
Partition sizes are hard coded into the kernel binary. To change the partition sizes, you will need to
rebuild the kernel. The flash memory map is shown in the following table.
Address Size
Contents
0x00000000 – 0x0005FFFF
384 KB
Boot Loader—Read ONLY
0x00060000 – 0x0015FFFF
1 MB
Kernel object code—Read ONLY
0x00160000 – 0x0055FFFF
4 MB
Mini root file system (EXT2)—Read ONLY
0x00560000 – 0x01F5FFFF
26 MB
User root file system (JFFS2)—Read/Write
0x01F60000 – 0x01FBFFFF
384 KB
Not used
0x01FC0000 – 0x01FDFFFF
128 KB
Boot Loader configuration—Read ONLY
0x01FE0000 – 0x01FFFFFF
128 KB
Boot Loader directory—Read ONLY
Mount the user file system to /
mnt/usrdisk
with the root file system. Check to see if the user file
system was mounted correctly. If the user file system is okay, the kernel will change the root file
system to
/mnt/usrdisk
. If the user file system is not okay, the kernel will use the default Moxa
file system. To finish the boot process, run the
init
program.
NOTE
1.
The default Moxa file system only enables the network and CF. It lets users recover the user
file system when it fails.
2.
The user file system is a complete file system. Users can create and delete directories and files
(including source code and executable files) as needed.
3.
Users can create the user file system on the PC host or target platform, and then copy it to the
DA-660.
Linux Tool Chain Introduction
To ensure that an application will be able to run correctly when installed on the DA-660, you must
ensure that it is compiled and linked to the same libraries that are on the DA-660. This is
particularly true when the RISC Xscale processor architecture of the DA-660 differs from the
CISC x86 processor architecture of the host system, but it is also true if the processor architecture
is the same.
The host tool chain that comes with the DA-660 contains a suite of cross compilers and other tools,
as well as the libraries and headers that are necessary to compile applications for the DA-660. The
host environment must be running Linux to install the DA-660 GNU Tool Chain. We have
confirmed that the following Linux distributions can be used to install the tool chain:
Redhat 7.3/8.0/9.0, Fedora core 1 & 2.
The Tool Chain will need about 100 MB of hard disk space on your PC. The DA-660 Tool Chain
is located on the DA-660 CD. To install the Tool Chain, insert the CD into your PC and then issue
the following commands:
#mount /dev/cdrom /mnt/cdrom
#rpm –ivh /mnt/cdrom/mxscaleb-3.3.2-x.i386.rpm
Wait for a few minutes while the Tool Chain is installed automatically on your Linux PC. Once the
host environment has been installed, add the directory
/usr/local/mxscaleb/bin
to your path and
the directory
/usr/local/mxscaleb/man
to your manual path. You can do this temporarily for the
current login session by issuing the following commands:
#export PATH=“/usr/local/mxscaleb/bin:$PATH”
#export MANPATH=“/usr/local/mxscaleb/man:$PATH”
Alternatively, you can add the same commands to
$HOME/.bash_profile
to cause it to take effect
for all login sessions initiated by this user.
