Advanced Video Control Unit (AVCU) User Guide
9
| www.nvisinc.com
USING SXPROG
The Advanced Video Control Unit includes an RS-232 port for use with the SXProg software
available from NVIS. This software allows users to perform the following functions:
Firmware upgrades
Color sequence up-grades
Adjust color depth and dithering functions
FIRMWARE UPGRADES
As a general rule, if your system is functioning properly, there is most likely no need to upgrade.
NVIS technical support will provide you with the latest and most appropriate firmware version if it
is determined that an upgrade can resolve an issue. Before starting, you will need to know the
location of the latest microcode. By default, two files with the .hex extension are placed in the
following directory/folder path (or similar based on your specific installation):
C:\Program Files\SXprog\User\Code\
Select both the AP.hex and BP.hex files separately using the appropriate tab.
To begin the upgrade:
Make sure your AVCU is powered off.
Connect the cable to a 9-pin RS-232 port on your PC and the RS-232 connector on the
AVCU.
Launch the SXprog application.
Click on the
Program
tab
at the top of the screen shown in Figure 12.
Click on
Program Board
. You will see a small window with a progress meter.
Turn on the AVCU so that the transfer can begin. The system will proceed to transfer the two
new files to the AVCU.
When the hourglass pointer changes back to an arrow pointer (and
not
before), turn the unit
off.
Close the SXprog application.
You can now turn the display back on, and the new firmware will be operational.
