KOH_Config_VBIOS

KOH_Config_VBIOS_CED

Configuring and Building the VBIOS with CED

The Intel^® Embedded VBIOS is built with the Intel Configuration Editor (CED). The VBIOS will use the configuration that you specify in CED. The VBIOS is selected to be built when you specify the Video BIOS as a Target OS in your package configuration. After specifying the Video BIOS, follow all CED prompts, and be sure to select “Generate VBIOS” when available. The VBIOS will then be built when you select “Generate Installation” in CED.

Before building your VBIOS, you must set up your DOS environment with the steps below.

1. Download the Open Watcom* C/C++ compiler from http://www.openwatcom.com. The User Build System for the VBIOS relies on the Open Watcom C/C++ compiler to be able to build a 16-bit DOS binary required for the BIOS. The VBIOS has been tested with version 1.7a of the Open Watcom compiler.

2. Install the Open Watcom* C/C++ compiler using the full or complete option. Do not use the default installation option as it may cause errors when creating the BIOS in CED.

3. Set up directory paths.

You must set up the PATH environment variable in DOS to be able to execute the Watcom compiler. If Watcom was installed with its default path, CED will by default be able to use it.

When you generate a VBIOS, CED produces the following folders and files:

• Compiled_VBIOS folder

— iegdtsr.exe (Terminate and Stay Resident executable)

Note: iegdtsr.exe is available only for the US15W platform. Any description about iegdtsr.exe in subsequence paragraphs and sections is applicable to the US15W platform only.

— VGA.BIN (Option ROM)

• IEMGD_HEAD_VBIOS.zip (this file is generated by the build system)

The iegdtsr.exe can be copied to any folder on the target machine. To run the TSR, boot the target machine with DOS, and then run the iegdtsr.exe from the DOS command line.

The VGA.bin file is the binary option ROM that can be merged with your system BIOS per the instructions provided by your system BIOS vendor.

The IEMGD_HEAD_VBIOS.zip file contains default builds of the TSR executable and Option ROM for the various chipsets. The filenames are iegdtsr-def.exe and vga-def.bin and are located in the tsr or orom folder of the specific chipset folder (see Video BIOS Directory Structure). Refer to Using the AMI* Video BIOS Utility for instructions on using the command line utility to merge the VBIOS ROM image with the hardware platform system BIOS ROM image.

For further VBIOS build guidelines, see Building the VBIOS.