User guide

1
Installing and Configuring Enhanced OS-9
Enhanced OS-9 for X86 PCAT 113
Device Descriptors:
To use a device with disconnect, wide, synchronous data transfer, and
FAST20 Ultra the following should be added to the device descriptor
entry in "systype.h". Be sure to re-make the descriptors.
#define SCSIOPTS SCSI_ATN|SCSI_SYNC|SCSI_WIDE|SCSI_ULTRA
Optionally you may use EditMod to change the SCSIOPTS field. For
SYNC and ATN the SCSIOPTS value is "5".
Using multiple SCSI controllers
It is possible to use multiple SCSI controllers with the Symbios family of
controllers.
The port address is used to specify the card to use.
PortAddress format.
[0xff] [device] [index] [SCSI_ID]
device = device number. Use PCIV to discover index to match. This is
system dependent and slot dependent.
Index = you may instead use index to specify the index of the card
found. Zero indicates first card, one indicates second card, etc.
The same address information may be used from the OS-9 boot menu
to access additional SCSI controllers, e.g.:
: hs port=0xff000100 id=3 ? Boot from second SCSI controller SCSI
ID=3
Creating driver specific versions
By default, the Symbios scsi8xx driver will look for any Symbios SCSI
card based on table usage. You may however re-compile the driver to
only look for the card desired.
MWOS/OS9000/80386/PORTS/PCAT/SCSI/SCSI8XX/makefile
PCI_DEV_ID = # -dSYMBIOS_DEVICE_ID=0xf
Remove the # and specify the ID required.
Driver name: scsi8xx
Rom driver name: ncr8xx