LXE mx7 Verweisanleitung

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44 Hardware 
Configuration 
MX7 Reference Guide 
 
E-EQ-MX7RG-H 
System Memory 
The 400MHz CPU configuration supports 128MB SDRAM, 128MB SD card. 
The system optimizes for the amount of SDRAM available. The operating system executes out of 
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. 
Internal SD Memory Card 
The MX7 has one SD card interface for storage of operating system and program code, as well as 
persistent storage. The SD slot is accessible from the battery compartment and ships with an LXE-
qualified 128MB SD Flash card. Larger capacity flash cards are available from LXE, see 
Accessories. 
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. At least 32MB of Flash is available for customer use.  
Video Subsystem 
The touchscreen is a 3.5” (8.9 cm) diagonal viewing area, ¼ VGA 320 by 240 pixel TFT 
Reflective Active Color LCD. Backlighting is available and can be turned on and off with key 
sequences. The turn-off timing is configured through the 
 | Settings | Control Panel | Display | 
Backlight icon. The display controller supports Microsoft CE 5.0 graphics modes. 
A touchscreen allows mouse functions (tapping on the display or signature capture) using an LXE 
approved stylus. The touchscreen has an actuation force with finger less than 100 grams. 
The color display has an LED backlight and is optimized for indoor use. The display appears 
black when the mobile device is in suspend mode.