rtd CML24BT cpuModules, User Manual

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54 CML24BT cpuModule BDM-610000084 Rev B
The RTD Enhanced BIOS
The RTD Enhanced BIOS is software that interfaces hardware-specific features of the cpuModule to an operating
system (OS). Physically, the BIOS software is stored in a Flash EPROM on the cpuModule. Functions of the BIOS
are divided into two parts.
The first part of the BIOS is known as POST (power-on self-test) software, and it is active from the time power is
applied until an OS boots (begins execution). POST software performs a series of hardware tests, sets up the
machine as defined in Setup, and begins the boot of the OS.
The second part of the BIOS is known as the CORE BIOS. It is the normal interface between cpuModule hardware
and the OS which is in control. It is active from the time the OS boots until the cpuModule is turned off. The
CORE BIOS provides the system with a series of software interrupts to control various hardware devices.
Configuring the RTD Enhanced BIOS
The cpuModule Setup program allows you to customize the cpuModule's configuration. Selections made in
Setup are stored on the board and are read by the BIOS at power-on.
Entering the BIOS Setup through the Graphical BIOS Menu
You can run Setup by rebooting the cpuModule and repeatedly pressing the ESC key . This will bring to you to a
graphical BIOS menu with several options described in the table below.
To enter Setup, navigate to the SCU option with the arrow keys, and press Enter .
Table 30 Graphical BIOS Menu Options
Key Function
Continue
Exit the graphical menu, and proceed with booting
Boot Manager
Select a device to boot to during the current power cycle, and
overrde the selected boot device order in the Setup
Device Management Set the primary video BIOS during the current power cycle, and
view a list of the system’s detected devices (disk, video, network,
input, etc.)
Boot From File Displays a list of bootable files in the system
SCU Traditional BIOS Setup