CD World Haziran 1997/CD World Haziran 1997.iso/Suruculer ve Guncellemeler/Transdisk/dosver4/README.TD

Text File | 1996-03-06 | 17.5 KB | 390 lines

This "README" file is updated to contain information specific to
the EPP version of the TransDisk model 3000E.      Dated March 1996
A ? mark means the feature has yet to be implemented.

Many machines, especially Pentium's, come with manufacturer's CMOS default
setup to non-EPP mode.  It is a good idea to change into EPP, but not ECP
or ECP/EPP mode.  The EPP mode does provide better signal quality.

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***   Regarding Windows 95

The current TransDisk and TransCD 16-bit drivers work well on Windows95.
The installation procedure is the same as that on DOS and Windows.  A
better alternative of loading TransDisk driver is also described in the
next section of "Windows95: A better alternative to load TransDisk driver".
If you have older version of drivers, please contact F.I.T., by fax:
1-908-417-5994 or by BBS: 1-908-417-1663, to obtain a newer version of
software.

Windows95 may prompt to ask you for a 32-bit driver for TransDisk or TransCD.
The current 16-bit driver does work well with Windows95 in the compatible
mode.  We are working on the 32-bit drivers.   The 32-bit driver will make
little difference to the TransDisk/TransCD operation and performance on the
Windows95 due to the hardware nature of the parallel ports. HOWEVER, the
loading mechanism may make a difference on the performance due to the
implementation of Windows95 on backward compatibilty.  In checking the
performance, there was no noticeable difference in operation between
having the driver installed, or, not having the driver installed.
Microsoft is trying to push all manufacturers to write 32-bit drivers,
so that they will be Windows95 and WindowsNT compliant.  Fidelity will
follow the trend and is working on implementing this.

        ** DLD.COM limitation on Windows95
Due to the nature of multitasking in Windows95, each command executed
(thru Explorer or RUN command) or each DOS session opened has its own
environment.   Its environment disappears after the DOS session is closed.
Hence, if you load TransDisk driver using DLD.COM or TDGO (which calls
DLD.COM), the TransDisk driver will disappear after exiting.   However,
if you use DLD.COM or TDGO in the AUTOEXEC.BAT that is executed in the
kernel model, it will be available for all later-spawned DOS sessions.
_____________________________________________________________________

***  Windows95: A better alternative to load TransDisk driver

It is recommended that an alternative method of loading the TransDisk
device driver be used for Windows95.  This involves using DLD.COM or
TDGO.BAT to load the driver in AUTOEXEC.BAT.

Step 1:
If you have not already installed the TransDisk software
using TD.EXE option 1,  do the following.

    Create a directory "\TD-EPP" on C: ( or Boot) drive and
    copy the contents of the TransDisk installation diskette
    to it.

else  (If you have installed the TransDisk software using TD.EXE
     option 1 with TransDisk driver in CONFIG.SYS) do the following.

    Remove the TransDisk device entry (DEVICE=C:\TD-EPP\TD-EPP.SYS
    .....) from the   \CONFIG.SYS  file or delete the file if
    the TransDisk device is the only entry.

Step 2:
    Create or edit \AUTOEXEC.BAT file on C: drive to include the
following 3 lines and save the file:
                CD   \TD-EPP
                CALL  TDGO
                CD  \
Note that if you wish to assign a specific drive letter (e.g.  M:),
other than the next available one, to the TransDisk, you can replace
the "CALL  TDGO" line above with the following:
                DLD  -M  TD-EPP.SYS
See README.TD file for details.

Step 3:
    Shutdown and reboot.

There are two reasons why this procedure is recommended:
    A.  DEVICE entry in CONFIG.SYS still works for TransDisk, however,
the system will generate a notice about the performance impact.  No such
notice if new method is used.
    B.  General performance of the system (including TransDisk) is
better with this method compared to using DEVICE entry.
_____________________________________________________________________

***  Accessing TransDisk with a DOS Drive Letter

Accessing TransDisk requires loading the TransDisk device driver (TD-EPP.SYS)
which assigns a DOS drive letter. To do this, you need to perform one of the
following:

1. Permanent Installation --
   TD utility allows normal installation of the TransDisk software onto the
   internal hard drive. It makes changes to the CONFIG.SYS file. A reboot
   is required to load the device driver.

   Syntax:    TD

2. Dynamic Loading --
   TDGO command allows loading the device driver dynamically without first
   installing the software via TD. It does NOT change any of the host system
   setup.  No reboot is required.

   Syntax:    TDGO [timing]

   timing    timing adjustment for device driver to match parallel port
        characteristics. Range: 0 - 99; Default = 3.

   See following sections for detail on timing adjustment.

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*** TD-EPP.SYS Options   (Older, non-EPP version, called TRANSD.SYS)

Usage:

  In config.sys

      DEVICE=C:\TD-EPP\TD-EPP.SYS [/T:<t>] [/S:<s>] [/B] [/U]

Description:

    /T option allows manual setting of the timing between the device
driver and the printer port. When /T option is not specified (default),
the device driver will AUTOMATICALLY set its timing to 3 to provide
better compatibility across different machine platforms with only minor
performance degradation. To further increase the performance of a
particular system, try reducing the timing value. See also the section
on "Parallel Port Mode and TransDisk Timing".
    When /T option is specified, <t> indicates the MANUAL-TIMING
parameter. The larger the value of <t> is, the slower the system becomes.
In particular, when <t> is set to 0, the system will run at full speed.
In EPP mode (see below), /T option is ignored and the driver will always
run at full speed to obtain the best performance.

    /S option allows you to change the timeout value associated with
the STANDBY mode operation of the TransDisk series.
    When /S option is specified, <s> indicates a timeout value in
seconds. If the unit is not accessed in <s> seconds, it will enter the
STANDBY mode. If <s> is not a multiple of 5, it will be rounded up to
the next multiple of 5. The minimum value of <s> is 60 (1 min.). The
maximum is about 1200 (20 min.). If <s> is set to 0, the STANDBY mode
is disabled.
    When /S is specified, a TransDisk unit will enter STANDBY mode
(Hard drive motor not spinning, to save wear and tear) when it is not
accessed in the timeout value specified. Once it receives a command,
it will spin up again and execute the command.
    When /S is not specified, TransDisk 3000E series disable STANDBY
mode operation.

    /U option forces the device driver to operate in the uni-directional
mode regardless of the printer port hardware.
    /B option forces the device driver to operate in the bi-directional
mode if the printer port hardware supports it.  Otherwise, it is equivalent
to the /U option.
    If neither /B nor /U option is specified (default), the device driver
will AUTOMATICALLY detect whether the printer port hardware is uni-directional
or bi-directional or EPP (Enhanced Parallel Port).

Example:

    DEVICE=C:\TD-EPP\TD-EPP.SYS
Default (auto-detect parallel port mode, TIMING = 3, STANDBY disabled)

    DEVICE=C:\TD-EPP\TD-EPP.SYS /T:5 /S:180 /U
Set MANUAL-TIMING mode to 5 and STANDBY-TIMEOUT to 3 min.
Force uni-directional mode.

    DEVICE=C:\TD-EPP\TD-EPP.SYS /T:0 /S:0
Set MANUAL-TIMING mode to 0 and disable STANDBY-TIMEOUT.
Auto-detect parallel port mode.

____________________________________________________________________

***  Parallel Port Mode and TransDisk Timing

The IBM PC compatible parallel (printer) port was originally designed
for IBM PC/XT. The signal quality and speed of the parallel port was
not an issue because the parallel port was able to keep up with the
relatively slow CPU when transferring data between the CPU and the
devices connected to the port.

Since then, the performance of the CPU has been dramatically improved
with the introduction of the 486's and Pentium's, while the parallel
port itself stays pretty much the same. The same parallel port still
works for the printer devices because of the relatively slow transfer
speed of the printer. However, with a high-speed device, such as a
TransDisk connected, the parallel port may find itself not able to keep
up with the high-speed data transfer between the device and the CPU.

Not all parallel ports are alike, especially when high-speed transfer
is concerned. Some can be pushed to the limit; some perform badly when
pushed. Fortunately in most cases, an workaround can be found. Please
try the items below individually or in combination:

*** 1. Change Parallel Port Mode ***
Many machines, especially Pentium's, come with manufacturer's CMOS
default setup to non-EPP mode for parallel port. Some computers, when
set to uni-directional port, shut off certain signals which may cause
the TransDisk not to work. It is a good idea to change into EPP, but not
ECP or ECP/EPP mode. The EPP mode does provide better signal quality. If
EPP mode is not available, try Bi-dir (Bi-directional) mode if it exists.

*** 2. Adjust TransDisk Timing ***
The following applies to non-EPP mode only as /T is ignored in EPP mode.
If we slow down the data transfer slightly during access to the parallel
port, the port may have enough time to allow data to become ready. The
TransDisk Device Driver provides a timing option for this purpose. If the
driver is loaded via a DEVICE entry in the CONFIG.SYS file, append the
line with the "/T:x" option where a good value of 'x' to try is 5, other
values are 10, 0, or 3(default). For example:
    DEVICE=C:\TD-EPP\TD-EPP.SYS /T:5
The typical range for 'x' should from 0 to 30, 0 being the fastest. To
find an optimum value, start with a number (say 5), move up or down until
a lowest number is found where there is no problem. Then add 1 or 2 to it
to provide additional safety margin and use that final number in "/T:x".

If TDGO is used to load the driver dynamically, simply append the 'x' to the
command line where 'x' means the same thing as above. For example: TDGO 5

If the TransDisk is used with a large number of machines, consider using
timing parameter 3 (default) or 5 as standard. This provides
much better compatibility across different machine platforms and in most
cases avoids the need for tuning each machine individually.

The performance degradation caused by the "/T" option should be relatively
small given today's fast CPUs (486DX4/100, Pentium).  TD.EXE option 3 may
be needed to re-initialize the TransDisk during the procedure.
____________________________________________________________________

***  Note on Printer Port Compatibility (1)

If you cannot access TransDisk and you have already followed the
troubleshooting instruction in the User's Guide, it is most likely
that your printer port may not be fully IBM compatible. In this case,
Adjust the timing by using /T option mentioned above and reboot the system.
Also see the note below.
____________________________________________________________________

***  Note on Printer Port Compatibility (2)

If you are using IBM PS/2 (or similar) machines which has DMA capability
on the printer port, e.g., PS/2 models 56, 57, 76, 77 and 90XP, you MUST
disable the "DMA Arbitration Level" of the printer port to use TransCD.

In order to do so, you can enter configuration (CMOS) setup mode at
the system boot time.  On PS/2 model 56, enter Ctl+Alt+Ins when cursor
moves from upper left corner to right upper corner at system boot.
Please refer to PS/2 User's Handbook for additional information.

____________________________________________________________________

***  Dynamic Driver Loader

Instead of using DEVICE entry to load the TransDisk driver in CONFIG.SYS,
DLD.COM   allows a user to load TransDisk driver at DOS prompt.
DLD.COM works on MS DOS 3.x, 4.x, 5.x, and 6.x.  It may or may not work on
other DOS operating systems.

Syntax:
    DLD [-drive_letter] driver_file [driver_options]

Example:
    DLD   C:\TD-EPP\TD-EPP.SYS
TransDisk will be assigned the NEXT available drive letter on the system.

Example:
    DLD   -P C:\TD-EPP\TD-EPP.SYS
TransDisk will come up as P: drive. Make sure LASTDRIVE in CONFIG.SYS
is greater than the drive letter specified.

____________________________________________________________________

***  Additional Utility,   TDPATH.EXE

Included on this package diskette is the utility TDPATH.EXE.
TDPATH.EXE allows you to customize your PATH with directories
available on your TransDisk.    To invoke TDPATH.EXE, type
tdpath  (if tdpath.exe is not in your execution PATH, use
full path) at the command prompt or include it in your AUTOEXEC.BAT.

When invoked, TDPATH.EXE searches TDPATH.ADD the root directory on
all partitions including TransDisk and non-TrnasDisk partitions for
the file TDPATH.ADD.  If a TDPATH.ADD is found, TDPATH.EXE will
extend your PATH based on the contents of TDPATH.ADD.   TDPATH.EXE
exits with error if there is no TransDisk attached to your system.

The format of TDPATH.ADD is as follows:

1:\lbin;2:\uti;1:\net10

Leading # and rem are considered remark lines and ignored.

Using above example and if current TransDisk starts as F:,
after TDPATH excuted, your PATH becomes

PATH=your_old_path;F:\lbin;G:\uti;F:\net10

--------------------------------------------------------------------

***  MANUAL INSTALLATION AND UN-INSTALLATION

To install TransDisk software manually follows below.

1. copy TransDisk software into your boot drive,
2. in config.sys, add driver statement as
     DEVICE=your_drive:\your_dir\TD-EPP.SYS

To un-install, remove the driver statement from config.sys and/or
remove TransDisk software from boot drive.

_________________________________________________________________________

***  How to use TransDisk on a OS/2 system

Before an OS/2 native driver is available for TransDisk, the following
procedure can be used to access TransDIsk on a DOS session under OS/2.
Thanks to Mr. Doug Azzarito of IBM, an excellent technical support,
accessing TransDisk under OS/2 is now possible.

The following procedure describes how to access the TransDisk from OS/2
by using a "specific DOS session."  This is a feature in OS/2 that allows
you to boot a session of "real" DOS mode while running OS/2.   To set this
up, do the following:

* Hardware:
    If you are using non-PS/2 machine, no hardware setup is necessary.
If you are using PS/2 (or similar) machines which has DMA capability
on the printer port, e.g., PS/2 model 56, you MUST disable the DMA
of the printer port to use TransDisk.

In order to do so, you can enter configuration (CMOS) setup mode at
the system boot time.  On PS/2 model 56, enter Ctl+Alt+Ins when cursor
moves from upper left corner to right upper corner at system boot.
Please refer to PS/2 User's Handbook for additional information.

* Software:
(1) Create a bootable DOS diskette that will load the TransDisk driver.
    Boot from this diskette to make sure everything works properly.
(2) Boot OS/2, and insert the bootable DOS disk in drive A:
(3) Copy the file \OS2\MDOS\FSFILTER.SYS to A:
(4) Add the line:   DEVICE=FSFILTER.SYS as the first line in the CONFIG.SYS
    on the bootable DOS diskette.
(5) Open the COMMAND PROMPTS folder (inside the OS/2 SYSTEM folder).
    you will see a "DOS FROM DRIVER A:" object.   Start that object, which
    will boot the DOS disk in drive A:.

From this DOS session, you will have access to the TransDisk.  No other
session will see the TransDisk, and all printing from other sessions will
be held in the spooler until the DOS session is closed.

The VMDISK command can make an "image" of this boot floppy, so you can start
a TransDisk session without inserting the floppy.   Type HELP VMDISK from
an OS/2 command prompt for details.

* Caveat:

Due to multitasking environment of OS/2, TransDisk performance on this
DOS session is far below that in actual DOS environment.

____________________________________________________________________________

***  Password Protection

Password protection is a security feature that prevents an unauthorized access
to the TransDisk.  Normally the TransDisk is shipped without the password. In
order to use the password feature, the user needs to run TD.EXE
and use the option 14.  The password can be up to 8 characters of
any combination.  Once the password is set and the system rebooted, subsequent
usage of that TransDisk requires password to gain access.  This feature
requires a matching version of the driver (TD-EPP.SYS) to work as specified.

____________________________________________________________________________

***  Read-Only Protection

Read-only protection is a safety feature that prevents writing to the
TransDisk while still allowing read access to it.  TransDisk acts just like
a read-only device much the same way as the write-protected floppy diskette.
The transDisk in read-only mode can be used as a distribution medium
especially in an environment where virus infection is a problem.  In order
to use the read-only feature, the user needs to run TD.EXE
and use option 7.  The read-only mode can be turned on or off and
takes effect the next time the system is rebooted.  This feature requires
a matching version of the driver (TD-EPP.SYS) to work as specified.

____________________________________________________________________________