4.15Storage Manager
Description:
Used to mount and format the two Flash disks available in the platform:
DSK1 (External Memory)
DSK2 (Internal Memory).
Notes:
Before formatting it is necessary to dismount the selected disk. Formatting is possible only from the ‘Properties’ toolbar. After formatting a certain disk, mounting and reset should be done.
Formatting DSK1 (External Memory) will cause registry settings to be erased.
4.16 System
Description:
Used to display general information and system memory set-up.
Notes:
System memory (RAM) is divided into Storage Memory and Program Memory. Some applications may require more Program memory to run smoothly. Changing memory assignment and saving to registry will start the application SysMemDiv.exe (see chapter 5.11) at the following power-up.
The “Storage Memory” is similar to a RAM disk in a desktop computer. It is used to store data and non-system applications; the “Program Memory” is used for stack and heap, for both system and non-system applications. Non-system applications are loaded from memory, uncompressed, and stored into Program Memory for execution.
More in detail, the RAM on a Windows CE device is divided into two areas: the object store and the Program Memory.
The object store resembles a permanent, virtual RAM disk. Data in the object store could be retained when the system is suspended or soft-reset, and devices typically have a backup power supply for the RAM, to preserve data if the main power supply is interrupted temporarily. When operation is resumed, the system looks for a previously created object store in RAM and uses it if one is found. Devices that do not have battery-backed RAM can use the hive-based registry to preserve data across boots.
Note: UniOP Windows CE workstations do not support retained RAM disks
The remaining RAM is devoted to Program Memory. Program Memory works like the RAM in Personal Computers: it stores the heaps and stacks for the applications that are running.
On some Windows CE platforms, the system, under low-memory conditions, might ask the user for permission to take some object store RAM for use as program RAM to satisfy an application's RAM needs.
Memory settings are stored in the registry. The registry can be saved to the memory card using the “Registry save” shortcut placed on the Desktop. Double click on the icon to run the program; a message will confirm the completion of the operation.
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