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NCR RealScan 7802 Price Verifier User Guide
06/03
497-0425530 Release E
20 of 94
NCR RealScan 7802 Software Updates
There are 2 basic models of the RealScan 7802 that utilize different internal processors
and operating systems. This is transparent to the customer and the API user and there
are no external functional or physical differences between the models with the exception
of the process for online software updates. Future software releases include both update
methods for both types of units.
When new software is loaded into the RealScan 7802, the file image is written into RAM
memory. A CRC is calculated and compared with the CRC appended to the file sent
from the host. If the two CRC’s are identical, the file has been loaded without errors and
it is then written into flash memory. The unit does not reboot itself and run the new
software.
The model type is easily identified by the software version number on the status screen
when the unit is booted.
V3.XX Software
If the software version is 3.xx, then use the FLASH.BAT batch program to update the
software. When the new software image is finished loading, FLASH.BAT immediately
reads back the status of the file transfer and the flash write process by reading the
ERRMSG file from the RealScan 7802. ERRMSG returns the CRC of the image and the
number of bytes written.
V4.XX Software
If the software version is 4.xx or later, then use the PUSH.EXE utility provided on the
CD-ROM to load the new program. The command format is:
PUSH <7802 IP Address><updated file name>.
For example: PUSH 10.0.0.13 SVLIN40
It is possible for the user to get a file called EEPROM.BIN from the NCR 7892. This file
contains an encrypted copy of the entire non-volatile memory. The only reason to do this
is for remote diagnostic purposes and NCR recommends the user only do this under the
direct guidance of a technical support engineer. The procedure is to connect to the unit
using FTP set in binary transfer mode, then GET the file EEPROM.BIN.
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