Appendix G: Re-programming the flash chip
127
Creating a Flash Boot diskette
Re-programming the flash chip requires a Flash Boot diskette that contains both
code to perform the task and data to place in the chip.
To create the Flash Boot diskette:
1. Locate the appropriate file from the RadiSys web site and download it to
your computer:
•
biosrec.zip
: Select this file when you want to re-program only the
BIOS-related files.
•
fbdrec.zip
: Select this file when you want to re-program all of the flash chip
except the Boot Block.
•
bbrec.zip
: Select this file when you plan to re-program only the Boot Block.
2. Unzip the contents to a directory on your hard drive.
When unzipped, verify that these files required to re-program the flash chip are
copied successfully to your hard drive:
3. Run crisdisk.bat. This program runs on MS-DOS, Windows 95, Windows 98,
or Windows NT. Select this program if your system runs only MS-DOS or if you
prefer to respond to command line prompts.
Insert a blank, formatted, 1.44MB floppy diskette into the system drive, then
complete tasks as prompted by the program.
Use extreme caution when re-programming the Boot Block. A BIOS
boot block rarely changes and should not require re-programming.
Filename
Description
readme.txt
Describes the transmittal and includes instructions
and issues that arose too late to include in other
documentation
bios.rom
A binary file that contains the BIOS image and
Boot Block.
crisboot.bin
The boot sector image.
crisdisk.bat
A batch file that creates the Flash Boot diskette.
makeboot.exe
Creates the custom boot sector on the diskette.
phlash.exe
The program that re-programs the flash chip using
data from the other files.
platform.bin
A file that describes the flash chip configuration, and
identifies which blocks to erase and re-program.
minidos.sys
A file that takes the place of DOS on the flash
boot diskette.
If your Flash Diskette contains only one of these programs, you must use
that program to create the Flash Boot diskette.
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