GFK-2306E
Chapter 4 Detailed Operation
4-33
4
Memory
The QuickPanel View supports a variety of memory subsystems to ensure the
requirements of your application are met. All system memory is tied directly to
the microprocessor‟s address and data busses for fastest access. To increase
DRAM by up to 64 MB, a 100-pin DIMM memory expansion slot is also
included. You can increase DRAM to a maximum of 96MB.
Flash Memory
This 32 MB block of non-volatile memory is the main long-term program
storage for the QuickPanel View, operating like a virtual hard drive from the
point of view of Windows CE. It is divided into two areas, of which only one is
accessible from Windows CE Explorer. The
Flash Storage
folder
represents a 16 MB block of memory available for long-term storage of user
application programs. Another 16MB block is used to store the Windows CE
operating system, and is not directly accessible from Windows CE Explorer.
The operating system and all user application programs are transferred from
Flash to DRAM for execution. Any user additions to the
Windows
folder are
retained in
Flash Storage
when the
Backup
utility is run.
FLASH memory has a limited write-cycle lifetime. That is, the physical memory
devices wear out after approximately 100,000 cycles (minimum), so it is
advisable to limit file operations such as copy, delete, etc.
The write cycle is much slower for FLASH than it is for other portions of RAM,
therefore FLASH is not recommended for the storage of program variables, or
any data items whose values are dynamic.
Flash memory can optionally be added with a CF card. These devices will
appear as the
PCFlash Storage
folder.
Summary of Contents for QuickPanel+ IC754VSI12CTD
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