developing times and program size of the applications, and be easily for
source management. At last, the top layer is application layer which include
all of applications in this thesis, and it would be discussed in later chapters.
3-1-2 Development Flow
Kernel
Develop Loop
End
Compile
ARM Linux Kernel
Download Kernel or
Ramdisk to PCM-7130
Via RS232
Success ?
Observe the Execution
Flow from
RS232 Terminal
No
Yes
Compile
ARM Applications
Copy The Binary Files of
Applications to
NFS root Directory
Applications
Develop Loop
Modification
or
Bug Fix
Modification
or
Bug Fix
No
Using cp command
in Linux
Using Xmodem
in RS232 Terminal
Using RS232 Terminal
to Communicate with
PCM-7130
Using RS232 Terminal
to Communicate with
PCM-7130
Using
UltraEdit or vi
Using
UltraEdit or vi
Figure 15. The Development Flow
Figure 15 shows the development flow which includes two developing
loops, the kernel and applications develop loops.
The kernel would be downloading into PCM-7130 after the Linux OS
kernel compilation in the kernel developing loop, and the downloading tool
was Xmodem tool through RS232 terminal, which can be a super terminal in
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