User`s manual

ThinkCore DA-661/662/663 WinCE User’s Manual Introduction
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The internal file system supports TFAT (Transaction-safe File Allocation Table) which is a safer
mechanism than FAT. TFAT prevents the file system from write corruption when the power shuts
down unexpectedly. When power shuts down, the file state is rolled back. In addition, TFAT is a
superset of FAT. This means that the internal file system of the computer provides the ability to
mount the external FAT file systems.
Hive-based Registry
The registry for the DA-66X-CE is a hive-based registry instead of a RAM-based registry. The
hive-based registry stores registry data inside files, or hives, which can be kept on any file system.
This eliminates the need for performing backup and restoring power.
Each file or hive contains a collection of registry data. The hive-based registry is split into two
hives: the system hive, which contains all system data, and the user hive, which contains all data
pertinent to one particular user. The DA-66X-CE embedded computer is a multi-user system and
accordingly contains several user hives. A user’s hive will be mounted on logon and dismounted
on logoff.
Inserting a CompactFlash Card into the Computer
The DA-66X-CE is equipped with a CompactFlash slot of type II that supports cards of both types
I and II. A mass storage card is considered to be a standard attachment to the computer. When an
empty mass storage card is inserted into the slot, the computer automatically formats it to the FAT
system. This process takes a few minutes to complete. When a mass storage card is inserted, a
directory named “CFFloder” is created under the root directory, and the newly created directory
serves a link to the storage.
The following table lists CF storage devices that have been tested successfully for compatibility.
Vendor Size Speed
PRETEC 128 MB
SanDisk Ultra II 1 GB
Transcend 2 GB 45X
Transcend 2 GB 80X
Transcend 4 GB 80X
ATTENTION
In some circumstances, you may find that your CF card is not detected when the system reboots.
If this happens do the following:
(a) Unplug the CF card and then plug the card back in again.
(b) Power down the system and then power it back up again.
Inserting a USB Mass Storage Device into the Computer
The USB mass storage device is considered to be highly portable between your PC and a computer
that does not support the TFAT system. We suggest that you format your devices with the FAT
format. When the first USB storage device is plugged into the slot on the back of the computer, a
directory named “USBDisk” under the root directory is created on the internal file system as a link
to the storage device. The directory created for the second USB device is “USBDisk2.”
The following table lists USB mass storages devices that have been tested successfully for
compatibility.