BusLogic / SDC

@0708.ADF - BusLogic BT-640 / SDC3211B
   @0708.ADF - BusTek BT-640A SCSI Adapter (rename to @0708.adf)
BT-640 / SDC3211B
LED Operation
Drive Power Connector
LittleFuse
Multitasking
BusLogic Drivers
SDC Drivers
ADF Sections 
OS/2 v.3 Switches



BT-640 and SDC3211B 32 Bit SCSI-1
D1 SCSI Activity LED
D2 Termpwr diode
F1 Littlefuse
J1 50 pin internal SCSI 
J2 50 pin HPDB SCSI
RP1-3 Termpacks
U3 MB8464A-10L
U4 MCODE
U14 N80188
U22 BIOS
U26 NCR 86C05
U30 NCR 53C94
U34 25.0000 MHz osc
W1
W2 outline for 2 pin header
W3
W4
Y1 H1600 xtal
Y2 40.000 MHz (?) xtal
1
BT-640A single-ended termination 
RP1, RP2 and RP3 are 8-pin 220/330 ohm SIP resistor packs (221/331G or equivalent) 
Update PROM for the 640
NOTE - To use the ROM files to update your BusLogic SCSI host adapter you must have a EPROM burner.  BusLogic will in no way provide any support on how to get your EPROM burner to work or anything else in the EPROM burning process. 
640a-335.zip    ROM Binaries for BT-640A: 3.35-4.70 

BT-640A SCSI Adapter for MicroChannel Systems
Host Bus:   16 and 32-bit MCA  32-bit busmaster DMA transfers of up to 40 MB/sec 
MPU:   8 MHz 80188 onboard microprocessor 
SCSI Controller:  NCR 53C94 
ASIC:  86C05 busmaster ASIC 
SCSI Bus:  Up to 7 devices 
           SCSI-2 command set compatible 
           Up to 5MB/sec synchronous or asynchronous 
Onboard termination:  single-ended 3  resistor packs (220/330 ohm)Term power supplied to bus 
Firmware:  Mailbox structure supports multitasking and scatter/gather 
BIOS:  Supports HD boot Up to 8GB storage capacity supported in BIOS 



Primary Controller in Non-IML System
   Enable the BIOS. Set your boot drive to ID0 or the BT-64x will not be able to boot from it. Also, you should set the boot drive to "autostart" so it spins up as soon as the system is turned on. I had a 0662 set to ID0, but the BT-646 complained about Target 0, Lun 0 not being detected, but then showed the 0662 at ID0, then the CD at 6,0. After jumpering the 0662 to autostart, everything was fine.


LED Operation
   When power is first applied to the BT-640A, an on-board diagnostic routine is run to verify that the major functional components of the board are operating correctly. The bus master chip, the SCSI controller chip, the firmware PROM, the local RAM and internal data buses are tested. Results of the tests are indicated by an LED on the board. 
   The LED will first turn on when power is applied. If the diagnostics find no malfunctions, the LED will then go off. In normal operation, the LED will be illuminated when command or SCSI bus activity occurs on the board. If an error is detected by the diagnostics, the LED will repeatedly flash a specific number of times, with a long pause between flashes, to indicate the board function which failed. This will continue until the board is powered down or reset. Failure interpretation from the number of flashes is as follows: 
Flashes
640A Failure 
Always On
Not operating/missing terminator
1
Firmware ROM checksum failure
2
Local RAM test failure
3
SCSI controller / interface failure
4
Internal data bus failure
5
Internal address bus failure
6
Bus master chip failure
7
SCSI drive type mismatch*
Constant
Fuse Blown.

“This error is applicable to the BT-646 when single-ended SCSI drivers are connected to the differential SCSI bus. 



Disk Drive Power Connector
   A 4-pin disk drive power connector (J4) is located at the top edge of the BT-64x board next to the SCSI connector Jl. This connector provides +12V and +5V power. 
   Note: The BT-64x brings the 12 volt power supply to the 4-pin power connector (14) via three gold fingers on the edge connector. The power rating of the Micro Channel edge connector on the12 volt is one ampere per finger. Consequently, fhe maximum power allowed from the 12 volts (Pin 1 of J4) is three amperes. Because certain large SCSI drives may require more than three amperes when their motors are spinning up, BusLogic recommends that this connector not be connected to these large SCSI drives. 
   Based on the power rating of the SCSI drives, if is recommended that this power connector not be daisy chained to multiple drives.


Term Power Fuse
   SDCxx11x and BT-64x use a Microlite Little Fuse that is 125v and 1/2 amps (Littel 27301.5 125V 1.5A or equivalent micro fuse). It is difficult to see that the fuse is blown so you will need to use a VOM to test for continuity. The fuse can blow if termination power settings are not correct on the SCSI devices or if you disconnect the SCSI cables while the card or SCSI devices have power. (Ed. Sure ain't kidding!)


Multitasking Operation
   For operating systems such as UNIX, NetWare, and OS/2, the mailbox protocol of the BT-64x provides true multitasking operation. Through the use of a mailbox structure, the BT-64x can support up to 255 tasks with minimum host processor intervention. Onboard firmware controls all of the SCSI activity that a task requires, including the Arbitration, Selection, Disconnection, Reconnection, and command completion status. This same mailbox protocol supports both initiator and target mode operation permitting high speed host-to-host communication and scatter-gather data transfers.


BusLogic Drivers
MULTIMASTER: Drivers / Configuration Files for MultiMaster SCSI  Host Bus Adapters 
adf-150.exe    Config file for BT-640/646 v1.50 (3-8-93)
dosaspi.exe    DOS/Win SCSI ASPI Drivers v4.31C (7-12-96)
mmodt.exe      SCO Unix ODT / OpenServer 2.x/3.x v4.01 (8-26-97)
mmunix.exe     SCO Unix OpenServer 5.0.x v4.01 (7-21-97) & Unixware 2.x v3.02 (7-24-97)
nextstep.exe   NeXTStep 486 v3.2 SCSI Driver (10-3-94)
ntaspi.exe     NT ASPI Driver
nw31x.exe      NetWare 3.1X SCSI Drivers v2.56 (7-3-96)
nw4x.exe       NetWare 4.X SCSI Drivers v1.56 (7-3-96)
nwgam.exe      Netware HAM drive w/GAM spt v5.02 (7-11-97)
nwham.exe      Netware standard HAM driver v5.02 (5-30-97)
os2-2x.exe     OS/2 v2.XX SCSI Driver v1.54 (10-23-96)
warp.exe       OS/2 3.x/4.0 (Warp)Driver v1.54 (10-23-96)
win95.exe      Win95 driver upgrade v5.02 (7-14-97)
winnt-a.exe    WinNT 3.5x driver for Alpha v5.02 (7-17-97)
winnt.exe      WinNT 3.5x/4.0 SCSI driver v5.02 (7-14-97)

SDC Drivers
CONFG243.EXE - (111k)  .adf files for all Storage Dimensions SCSI adapters. Buslogic drivers are the same... The Readme file

Micro Channel RAIDCard - v2.0 (269K)  all the required files to support the -002 Micro Channel RAIDCard for OS/2 and NetWare. For use under NetWare, you must also have the LANStor Plus software. When unarchiving this file, use  the "-D" option to restore the directory structure. 

LANStor5 - v6.10 (109k)  SCSI NLM for NetWare v3.11 - supports the SDC1611/3211x under NetWare versions 3.11. Not tested or certified using NetWare v3.12 or v4.xx. 

LANStor Plus - v2.50 (114k)  SCSI NLM for NetWare v3.12 and v4.xx  most current version of LANStor for the SDC1611/3211x, and the SDC3231WS SCSI Adapters. It includes  LAPIS Plus which which is Artecon' ASPI layer (manager). 




OS/2 Switches
This adapter driver supports all bus master type BusLogic SCSI Host Adapter products. The BTSCSI.ADD device driver supports the following BusLogic host adapters: 
   o  BT-640A, BT-646S - Micro Channel SCSI Host Adapters 
 Usually, ADD device drivers determine the parameters automatically. The following parameters are provided in case it is necessary to override the default parameter selection. 

 BASEDEV= -- BTSCSI.ADD -----------
                           +- /V   -+  Verbose mode
        +- /A:n ------------------------+  Adapter number
              |- /!DM -------------|  Disable DASD Manager
              |      +- :unitlist -|    List of unit IDs
              |- /!SM -------------|   Disable SCSI Manager
              |      +- :unitlist -|     List of unit IDs
              |- /TQ --------------|
              |      +- :unitlist -|
              |- /BON:n -----------|
              +- /BOFF:n ----------+
 
 

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