Memory - GE IC754VSB06MTD Hardware User's Manual

3

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.
Flash Memory
This 16 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
represents a 6 MB block of memory available for long-term storage of user
application programs. Another 10MB 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
retained in
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.
Do not remove power while the system is writing to flash
memory, such as when downloading a Proficy Machine
Edition project. Removing power while writing may lead to
data loss and file system corruption. To ensure the system
completes writing to flash and closes all files, see
"Shutdown" in chapter 1.
3-30 6" QuickPanel* ViewBasic, Monochrome, Round Bezel – September 2010
Flash Storage when the
Flash Storage folder
Backup utility is run.
Caution
Windows folder are
GFK-2327B