Memory Requirements - Symbol PDT 7200 Series Product Reference Manual

PDT 7200 Series Product Reference Guide

Memory Requirements

Table 5-2 through Table 5-4
storage for various configurations based on application requirements.
Application Requirements
A Small Program Storage
Operating system (OS) and
support files fit within 1.8 MB of
flash disk when uncompressed.
B Medium Program Storage
OS and support files fit within 3.8
MB of flash disk uncompressed or
within 1.8 MB of flash disk
compressed.
C Large Program Storage
OS and support files fit within 3.8
MB of flash disk when
compressed.
1.
DRVSPACE requires approximately 60KB of conventional memory to load. It can be configured to use EMS
or XMS memory, reducing the amount of conventional memory required, but increasing the total amount of
RAM required.
2.
Some possible reasons why DRVSPACE might not be usable are listed below:
a. The application requires a large amount of various types of memory (conventional, XMS, EMS,
etc.) and the memory required by DRVSPACE cannot be spared.
b. DRVSPACE conflicts with the application or some utility used with the application (no such
conflicts have yet been found), depending on how you choose to load DRVSPACE.
c. The minor performance penalty imposed by DRVSPACE is unacceptable.
5-8
summarize the memory requirements for program and data
Table 5-2. Program Storag e
Recommended
Configuration(s)
Flash Disk Based
Flash Disk Based
Flash Disk Based
Hardware Required
2 MB flash
Boot from flash disk
Operating system and support
files stored in Flash disk.
Same as A, but with 4 MB flash
OR
Same as A, but with flash disk
compressed using DRVSPACE
Same as A, but with 4 MB flash
and with flash disk compressed
using DRVSPACE.
1
.