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Watchdog Timer
The Hawk has a watchdog timer that contains a selectable prescaler approximately 1 μs to
10 minutes. See the
Default BIOS Settings
The Hawk permits you to store user-defined BIOS settings. This enables you to retrieve those
settings from cleared or corrupted CMOS RAM, or battery failure. All BIOS defaults can be
changed, except the time and date. BIOS defaults can be updated with the BIOS Update Utility.
CAUTION: If BIOS default settings make the system unbootable and prevent the user
from entering the BIOS Setup program, the Hawk must be serviced by the factory.
Default BIOS Setup Values
After CMOS RAM is cleared, the system loads default BIOS parameters the next time the board
is powered on. The default CMOS RAM setup values will be used in order to boot the system
whenever the main CMOS RAM values are blank, or when the system battery is dead or has been
removed from the board.
Resetting CMOS to Factory Settings
1. Power on the unit and press the Del key several times (3-4x) then wait 5-10 seconds.
2. Press F9 to Restore the BIOS defaults and press enter.
3. Press F10 for the settings and enter to Autosave, the unit should power down and restart
with the default settings.
Console Redirection
The Hawk can be configured for remote access by redirecting the console to a serial
communications port. BIOS Setup and some operating systems such as DOS can use this console
for user interaction.
Console redirection settings are configured in the BIOS Setup. Console redirection is enabled in
BIOS Setup in Advanced -> Serial Port Console Redirection. The serial port must be enabled
before the serial console can be assigned to the port. On the Hawk, the only serial port that
supports console redirection is in Advanced -> Module Serial Ports -> Serial Port 0.
To enter BIOS Setup, press Esc on the remote console. To simulate a function key, press Esc
followed by a number key. For example, simulate an "F10 - Save & Exit" keystroke using Esc,
0.Console redirection can be disabled or redirected to a different COM port. The default settings
for the redirected console are 115.2 Kbps, 8 data bits, 1 stop bit, no parity, and no flow control.
Figure 11 shows the wiring for a DB9-to-DB9 adapter for console redirection of an RS-232 serial
port.
VL-EPU-3310 Reference Manual
Intel Atom Processor E3800 Series Datasheet
System Features
for configuration information.
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