D e t a i l e d O p e r a t i o n
Memory
GFK-2357A
6" QuickPanel View Keypad
53
PCFlash Storage, the second PCFlash Storage2. At powerup, a CF port device is
recognized and named first. Otherwise name depends on connection order.
S R A M M e m o r y
This 512 KB block of static RAM is battery-backed to provide data retention
through a power cycle. This memory block is shared by the operating system and
user applications. A portion of the SRAM memory operates as a virtual hard drive
and is accessible from the Windows CE Explorer. It is represented as the
SRAM
Storage
folder. A typical application program would create a file in this folder and
store any critical program data in that file.
D R A M M e m o r y
The QuickPanel View Keypad is equipped with 32 MB of dynamic RAM. Part of the
DRAM (13.2 MB) is reserved for the Windows CE operating system and is not
accessible by user applications. The other 18.8 MB is split between two functions:
an object store for temporary file storage, and the main memory for running
programs.
Typically, compressed programs stored in FLASH are expanded and moved to
DRAM for execution. Temporary storage of program variables or data files is also
provided by DRAM—any data stored in DRAM will not be retained through a
power cycle or reboot.
The split between program memory and storage memory may be adjusted as
necessary to make more room for one or the other, depending on your specific
application needs. For example, if you find that an application is short of memory,
use the System Properties dialog box to alter DRAM memory allocation.
Caution:
Setting Program Memory too low may prevent additional applications
from starting, or may cause currently running applications to fail due to lack of
memory. Setting Storage Memory too low may prevent the saving of files into the
object store portion of the file system, which may also cause application failures.
To cha nge the DRAM memor y allo cation
1. In the Control Panel, double-tap
System
.
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