TS-7250 MANUAL
GETTING STARTED
2.4 Loading or Transferring Files
Three methods are available for transferring files between a desktop PC and your
TS-
7250
: Ethernet downloads, flash memory devices, and Zmodem downloads. Full
descriptions of each are detailed below. Other programs that use serial ports to transfer
should work as well.
Transferring Files via the Ethernet Port
The default JFFS Linux root file system includes a small FTP server that can be used for
uploading/downloading of files across an Ethernet network. Simply point your preferred
FTP client to your
TS-7250
IP address (default is 192.168.0.50). You can login as root or
any valid user previously created from the useradd utility. By default, the JFFS image will
not accept anonymous FTP.
Transferring Files via Flash Memory Device
The
TS-7250
removable Compact Flash card, an SD card or an USB flash memory card
can be used to easily move files from a host system. We suggest using a low-cost
SanDisk USB Compact Flash card or SD card interface for your host system. USB
memory devices need no extra accessory to connect to the host PC. The flash memory
devices can then be hot swapped (inserted or removed without rebooting the host PC).
Zmodem Downloads
Using the Zmodem protocol to send files to and from the
TS-7250
SBC is simple and
straightforward. The only requirement is a terminal emulation program that supports
Zmodem, and virtually all do. If you are using Windows 95 or later for your development
work, the HyperTerminal accessory works well.
To download a file to the
TS-7250
from your host PC, execute lrz at the Linux command
line on the
TS-7250
(while using console-redirection from within your terminal emulator)
and begin the transfer with your terminal emulator. In HyperTerminal, this is 'Send File...'
from the 'Transfer' menu.
To upload a file from the
TS-7250
to your host PC, execute lsz <FILENAME> at the Linux
command line on the
TS-7250
and start the transfer in your terminal emulator. Many
emulators, HyperTerminal among them, will automatically begin the transfer themselves.
Occasionally there may be errors in transmission due to background operations. This is
not a problem -- Zmodem uses very accurate CRC checks to detect errors and simply
resends bad data. Once the file transfer is complete the file is completely error free. For
best results when using HyperTerminal, the hardware handshaking must be enabled in
HyperTerminal.
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