User's Manual Part 3

PERFORMING DOWNLOADS
Omni 3600 Download Differences
64 OMNI 3600 REFERENCE MANUAL
With application files, the application designer or programmer usually decides
which file types to download into which file system. Other file types, such as
operating system files, digital certificates, and signature files, must download into
RAM.
In a typical download procedure, all files are loaded into the RAM file system of
the target group selected in system mode. Specific files included in the download
package must be redirected, as necessary, to the flash file system of the target
group or to the RAM or flash file system of another file group.
To redirect files during a download procedure, see the following sections.
Defragment Flash For Application Downloads
Before you perform an application download, you may need to defragment
terminal flash memory. For information on performing this system mode
operation, see Table 7, page 45.
To ensure the best result when performing back-to-back downloads, you may
need to defragment the flash memory on the receiving terminals. A system mode
procedure is also available for clearing the RAM or flash memory, either entirely or
for a specific file group, to prepare an Omni 3600 for a clean download.
Redirection of
Files During
Application
Downloads
You can download application files into RAM or flash memory. By default, files
that you download to a specific file group are stored in the RAM of that group. To
store a file in flash of that file group, you must provide instructions to redirect the
file to flash as part of the procedure.
There are two methods you can use to redirect files during an application
download, depending on the download tool you are using:
• If you are using Download Manager or ZonTalk 2000, you must manually
create and include special zero-length files called SETDRIVE.x and
SETGROUP.n on the download computer, and add these files to the batch
download list to direct files to a specific file system (drive) or file group.
• If you are using DDL.EXE to perform direct downloads, you can use a special
command-line option that automatically redirects files to the drive and file
group you specify.
Both of these methods are further described in the following sections.
NOTE
The flash defragment operation is not necessary for an Omni 3600 terminal just
out of the box. In this case, the terminal flash file system is still in its factory-new
condition.