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F
When in self-hosted mode, NEWBIOS uses a checksum to ensure that the BIOS is
corrupted before proceeding. When running NEWBIOS as a remote download, the
checksum step is bypassed.
To display the usage model, type NEWBIOS and press <ENTER>. Available
options include:
NEWBIOS /F=<filelist> [/C=timeout] [/R=retries] [/P=port]
/C = <ms>
Wait period. Default is 30000 milliseconds.
/R = <count>
Retries. Default is 16 retries.
/P = <n>
COM port used on the source computer for remote downloads.
If no port selection is made using the /P=Port # parameter, NEWBIOS begins
execution in self-hosted mode. NEWBIOS reprograms 120 Kbytes of the 128K flash
BIOS. The first 8 Kbytes are used for the boot block and are not reprogrammable.
Download files are specified by using the /F=<filename> parameter. Files are copied
into flash memory from low to high memory addresses. The files list must provide
for the necessary files, in the correct order, and located at the correct offsets. To help
accomplish this, two files (FILL16.BIN and FILL8.BIN) are included on the
F
Utilities diskette.
The necessary order and offsets are as follows:
Offset
File
0
16K "filler"
16K
16K "filler"
32K
16K "filler"
48K
64K system BIOS
112K
8K "filler"
For this example, assume that you are updating the BIOS on the system that is
running NEWBIOS.EXE. Make sure the H3 jumper is installed (refer to Figure 7, p.
16) to allow writing to the flash device. Remove this jumper after programming since
aberrant programs may write to the flash device and corrupt the BIOS.
To update the BIOS in self-hosted mode, follow the instructions below:
Page F2
EPC-27 Hardware Reference
File(s) to Use
FILL16.BIN
FILL16.BIN
FILL16.BIN
EPC24.BIN
FILL8.BIN
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