LXE hx3 Reference Guide
44 Hardware
Configuration
HX3 Reference Guide
E-EQ-HX3RG-C
802.11 Wireless Client
The HX3 has an LXE 802.11 network card that supports diversity with two internal antennas. The
CPU board does not allow hot swapping the network card. Adjusting power management on the
network card is set to static dynamic control.
CPU board does not allow hot swapping the network card. Adjusting power management on the
network card is set to static dynamic control.
WEP, WPA and LEAP are supported. See Chapter 5 – Wireless Network Configuration.
Central Processing Unit
The CPU is a 400MHz Intel Xscale PXA255 CPU. The operating system is Microsoft Windows
CE 5.0. The OS image is stored on an internal SD flash card and is loaded into DRAM for
execution.
CE 5.0. The OS image is stored on an internal SD flash card and is loaded into DRAM for
execution.
Xscale turbo mode switching is supported and turned on by default.
The HX3 supports the following I/O components of the core logic:
• One SD card slot, inaccessible to the end-user.
• One TTL serial port designed to interface with LXE ring scanner only.
• One RS-232 serial port accessible via the cradle.
• USB master accessible via the cradle.
• USB client accessible via the cradle.
• One TTL serial port designed to interface with LXE ring scanner only.
• One RS-232 serial port accessible via the cradle.
• USB master accessible via the cradle.
• USB client accessible via the cradle.
System Memory
The 400MHz CPU configuration supports 128MB SDRAM, 128MB SD card. SD card location is
inaccessible to the end user.
inaccessible to the end user.
The system optimizes for the amount of SDRAM available. The operating system executes out of
RAM.
RAM.
Internal flash is used for boot loader code and system low-level diagnostics code. Bootloader code
is validated at system startup. The UUID required by CE 5.0 is stored in the boot flash. A second
copy of the bootloader code is stored on the internal SD Flash drive, so that if a damaged
bootloader is detected, it may be re-flashed correctly.
is validated at system startup. The UUID required by CE 5.0 is stored in the boot flash. A second
copy of the bootloader code is stored on the internal SD Flash drive, so that if a damaged
bootloader is detected, it may be re-flashed correctly.
Internal SD Memory Card
The HX3 has one SD card interface for storage of operating system and program code, as well as
persistent storage. The SD slot is inaccessible and ships with an LXE-qualified 128MB (optional
512MB) SD Flash card.
persistent storage. The SD slot is inaccessible and ships with an LXE-qualified 128MB (optional
512MB) SD Flash card.
The internal SD flash card supports a FAT file system, via a special device driver, and appears to
the OS as a folder. This allows the contents to be manipulated via the standard Windows CE
interface. Operating system files are hidden on this drive with a terminal unique identifier in the
internal flash, to prevent them being accidentally erased by a user. In addition, the registry hive
files are stored on this device. The amount of Flash memory available for customer use is the
original SD flash card size less 40MB.
the OS as a folder. This allows the contents to be manipulated via the standard Windows CE
interface. Operating system files are hidden on this drive with a terminal unique identifier in the
internal flash, to prevent them being accidentally erased by a user. In addition, the registry hive
files are stored on this device. The amount of Flash memory available for customer use is the
original SD flash card size less 40MB.