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backlight also affects the backlight of the connected modules (if any). The suitable value for the
potentiometer is affected by the number of connected expansion modules; a 1000 ohm (0,5W minimum)
potentiometer is suitable for a typical setup. To allow the external backlight inputs to work the related
preference have to be settled “ON” in the preferences setting (see “CONFIGURATION MODE” section).
Figure 4: connection diagram for external backlight
control wiring.
WARNING! To connect wires to the 2 pole socket
use the provided 2 pole pin strip; do not weld the
wires directly to the FCU connector. Weld wires to
the provided pin strip and place thermo-retractile
isolation tube on each connection to avoid shortcircuit
between poles. Do not weld wires to the pin
strip when it is inserted in the FCU socket, insert
in only after welding the wires.
16 POLE CONNECTOR (Figure 2 D)
The 16 pole connector is provided for future development.
Important note: The 16 pole connector is not compatible with the MCPEX1 expansion board.
Backlight control
1Kohm Pot or Switch
FCU320
8
FIRMWARE UPDATE
The FCU hardware is based on a microprocessor, on this device run a special program called “firmware”.
The firmware manages all the hardware functions besides the communication with the computer.
The firmware is stored in a “flash” memory, this allows the program to be updated at any time in case of
improvements or functions addition. The firmware is available at CPflight website on download page (except
the first released version); the revision number is progressive, so a higher number correspond to a latest
version. Before to proceed with the upgrade check the installed firmware revision number. You can see the
installed version in configuration mode (see related section) or at the FCU startup.
In some circumstances a firmware upgrade may require an updating of the software too (Project Magenta or
AST), if you encounter any malfunction after a firmware update, check software version and update the
software if required. To update the firmware follows these steps:

Download the firmware at: http://www.cpflight.com/sito/downloads/downloads.asp ; pay attention to the
relation between the firmware and the device as on the download page you may find firmware for
different devices. The firmware for the FCU is named “fcufwxxx.zip” (where xxx act for the revision
number)…

Files are in a compressed archive .zip; unzip the files in a temporarily folder…

Disconnect supply from the FCU; disconnect external modules and expansion board if any…

Insert the two jumpers (provided) on the pins located on the back of the FCU as indicated in the below
figure…

Connect power supply to the FCU, a small flash on the backlight indicate that the FCU has started in
firmware program mode…

Close any application on the computer, browse the temporary folder that contain the downloaded
firmware and run UPGRADE.EXE program. The following dialog will prompt…
Select the port number assigned during the
driver installation (see “driver installation”
section ) and click on OK…
…click on "Load" button and browse the
FCU320xxx.mot file (where xxx represent the release
number) in the folder where you have extracted the
firmware files; select it and proceed…
FCU320
9
…the file name will be shown into “upgrade
file” field click OK to proceed…
…click on the Erase button to clear the memory for
programming…
…at the end of erase phase the above dialog
will prompt; clock OK to proceed…
…now click on Program... button…
…the program show the info about the
memory area to be programmed, click OK…
…the memory programming will take some time,
during the programming the FCU backlight will flash…
…at the end of program procedure the above
dialog will prompt, click OK to continue…
…now click to Exit button and wait until the dialog will
close before proceed…

Firmware has upgraded; disconnect supply from the FCU…

Remove the two jumpers from the pin…

Reconnect external modules and expansion board if any…

Reconnect power supply to the FCU, the displays will show the new installed Firmware revision.
CPflight OPERATIONS MANUAL
Revision 1.00 December 2007
MAIN CHARACTERISTICS
Common characteristics for FCU320 and EFI320 (Left & Right)
• Engravity backlighting frontplate.
　
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