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-
- A Replacement for the Old Device Drivers for OTRONIC
- SCSI Controller Boards
-
- For rebuilding the binaries you may need:
-
- - Aztec C V5.2a;
-
- - GNU sed version 1.01 ( Fish Disk Nr: 231 ).
- I use a private port of version 1.08;
-
- - MV from Fish Disk 219.
-
- The binaries in "bin" are for AMIGAS with MC680x0 ( x > 1 ).
-
-
- Hardware Guide
-
- Users from OTRONIC OSSI-SCSI-CONTROLLER boards can
- replace their EPROM resident device driver:
-
- - Open the Controller;
-
- - There are 1 2764D and 1 27128A;
-
- - Clear both chips with an EPROM erasing device;
-
- - Reburn 2764D with file "EPROM_68000/ROMHD.64";
-
- - Reburn 27128A with file "EPROM_68000/ROMHD.128";
-
- - Short jumpers 1-2 for autobooting with new driver;
-
- - Or 2-3 for disabling autoboot from new driver ( In this case
- you must use binddrivers for starting );
-
- - Reassemble the controller box and have fun....
-
-
- Software Guide:
-
- Before reburning your EPROMS you can test your hard drive:
-
- (*) - Copy expansion/HardDisk to sys:expansion/ on a WorkBench disk;
-
- - POWER DOWN your machine;
-
- - Disable Autoboot on your Controller Board under the old
- EPROM resident driver ( Jumpering 1-2 );
-
- - POWER UP your machine;
-
- - Load KickStart 1.3 or 2.0 on A-1000 machines;
-
- - Reset your machine with empty drive slots;
-
- - Now the machine should'nt boot;
-
- - Insert the WorkBench Disk prepared as described in step (*)
- with the reset resident version "HardDisk" in sys:expansion/;
-
- - Open a Shell Window and type: BindDrivers;
-
- - Your hard drive(s) should respond with a short flash of their LEDS;
-
- - Reset your machine with empty drive slots;
-
- - Now your machine should boot
- from the new reset resident driver after
- every reset, unless you activate KillOssiDriver
- on machines with Kickstart 1.3 and beyond.
-
- - Activating partitions under Kickstart 1.2,
- you must refer explicitely
- partitions after invoking BindDrivers.
- Example: The name of a partition is
- HD0:, the command line "cd HD0:" in your
- startup-sequence of the WorkBench Disk
- activates the named hard disk partition.
-
- Startup-Sequence sample code for partitions HD1: Hd2:
- .....
- .....
- BindDrivers ; this activates the driver
- cd HD0: ; this actives (from device driver)
- ; premounted partition HD0:
- cd HD1: ; this activates partition HD1:
-
- If the above steps work you can reburn your EPROMS and the machine
- should autoboot with jumpers 1-2 connected from the EPROMS
- after POWER UP on AMIGA-500 and after loading Kickstart on A-1000.
-
- Hints: You find these EPROM types on nearly every old
- PC-clone motherboards or similar hardware junk
- if you want preserve
- your original EPROMS ( A very Cheap solution );
-
- Grounding PIN 26 of the 2764D socket allows the usage
- of another 27128A as replacement if you burn the lower 4KB of
- this chip with "EPROM_68000/ROMHD.64" thus using two 27128A instead
- of the original 27128A/2764D pair;
-
- Other
- Suitable EPROMS: D27128A/L7490293S from Intel ( 12.5V )
- D27128A/L7150289S from Intel ( 12.5V );
-
- Due to the mapping of the original on board SCSI-connector with
- 50 pins into 37 pins for the external OSSI-SCSI drive box
- there exists a NOT CONNECT condition for /ATN.
- You should connect pin 32 of the connector with pin 15 of
- the AM5380PC controller chip. Now you can use
- a standard SCSI-cable for connecting external SCSI-boxes
- to your OTRONIC controller;
-
- The on board 50 pin connector points to the front side if
- you connect the controller to an AMIGA-1000!!
-
- Front side:
-
- |---- Pin 32 Top
- |
- . . . . . . . . . . . . . . . . . . . . . . . . .
- . . . . . . . . . . . . . . . . . . . . . . . . .
- ^
- |
- |--- Pin 1 Bottom
-
-
- Jumper location in the controller box:
-
- |-----------------------| Connecting 1-2 enables Autoboot for
- | .. ... | Kickstart 2.0 or 1.3 if my device
- | 123 | driver is EPROM resident.
- 8-| ^ | Connecting 2-3 disables Autobooting
- 6 | /|\ | for Kickstart 1.2 if my device driver
- | | |--- Interesting | resides in the EPROMS. Conversely
- P | Jumpers | jumper setting 1-2 disables Autoboot
- i | |---------| | with the old EPROM resident device driver
- n | | 27128A | | and setting 2-3 enables the Autoboot
- | |---------| | using EPROMS with the original driver.
- C | |
- o | |
- n | |---------| |
- n | | 2764D | |
- e | |---------| |
- c | |
- t | |
- o | |
- r-| |----------------| |
- | | AM5380PC | |
- | |----------------| |
- | |
- |-----------------------|
- 50-Pin SCSI Connector
-
- For partitioning of large disks like FUTJITSU M2266S/H 1GB
- you should use the standard COMMODORE tool HDToolbox from
- a CLI console, type in: hdtoolbox hd.device;
-
- DiskDefine only works correctly with small SCSI drives;
-
- I tested my device driver with CONNER 3200CP 200MB, FUTJITSU M2266S/H
- 1 GB, SyQuest 88MB, Archive Viper Tape Streamer, SEAGATE 296N 80 MB;
-
- The new device driver also works with Kickstart 37.175
- and WorkBench 37.67.
-
- I am not liable in any case for damages to your Hard- or Software
- due to using my device driver or performing the above upgrades!!
-
- P.S. If you burned successfully some EPROMS with
- the supplied binaries and every thing works well,
- or if there is a hard disk not supported from my driver, send mail
- to eloew@edv-z.tu-graz.ac.at
-
- I will post the sources in PD or in catalogs like "Kickstart"
- , "Amiga Welt", "Amiga Plus" or elsewhere if there are
- feedbacks.