User guide

1
Installing and Configuring Enhanced OS-9
Enhanced OS-9 for X86 PCAT 105
DUPDATE /WIN:{address} /S:DOC121.EXB /FIRST
With the {address} being the base address of the DiskOnChip, i.e.
D000, D400, etc. “121” in the file DOC121.EXB represents the firmware
version. The actual firmware version used might be a higher version,
i.e. DOC122.EXB, etc.
NoteNote
The DUPDATE utility and firmware files are provided with the
DiskOnChip ISA evaluation board available from M-Systems.
The default base address for the M-System’s evaluation board is
D000h. Refer to the documentation included with your hardware for the
base address and board jumper settings.
If you do not need to access additional hard disk(s) under OS-9, you
may also disable them in the CMOS setup. In this case, the above DOS
command is not necessary.
In some cases it is useful to prevent the DiskOnChip firmware from
installing at boot time. You can achieve this by performing the following
DOS command:
DUPDATE /WIN:{address} /S:DOC2.FFF
With the {address} being the base address of the DiskOnChip, i.e.
D000h, D400h, etc.
Booting OS-9 from DiskOnChip
Remove any floppy disks from the floppy drive and reset your target.
The OS-9 IPL message should appear briefly, then the following
screen:
OS-9000/x86 Bootstrap
Now trying to Override autobooters.
At this point, the floppy booter will be called and will fail because there
is no floppy disk in the drive. At that point, the DiskOnChip booter will
read the OS-9 bootfile from the DiskOnChip device. The system will
then boot to a shell prompt.