Table of Contents
1.1 System Overview The Controller program was not designed for the normal users but to assist the programming team in development. It is offered now as a tool for support staff to assist in converting tape to disk files to be used by the Emulator
The CMTU Controller/Emulator is a Win32/Win64 program that replaces the USH-26. It uses a PCI NTDS card, currently two cards are supported to communicate to the USH-26 (in controller mode) and the UYK 507 (in emulator mode). The prototype worked in both a high end PCs with 4 MB of RAM. The NTDS cards tested were:
No additional hardware is required from the PC side. The card comes with transition modules to connect to an M81511 connector that is the same as the connector on the back of the USH-26. To emulate the USH-26 existing cables from the UYK can be used. To connect to the USH-26 and control it special cables need to be used with both ends terminating in M81511 connectors.
The Program starts by default in CMTU Emulator mode. The NTDS card connects
to the UYK via the existing cable for the USH-26. It emulates the four drive
bays of the USH-26 using a configurable directory structure on the hard drive,
floppy, zip drive, or CDRom (for read only files). There are always four empty
tapes in the drives unless a recorded tape is selected to be in a specified
drive. Recording capacity is restricted only by the space available on the
The CMTU Emulator replaces the USH-26 CMTU drive. It emulates all of the USH
functions including the four drive bays. The UYK computer connected to the
emulator will function as if it were connected to an USH-26. Tape files can
be stored on any medium available to the PC.
|To start the emulator, simply click the power switch on the CMTU Emulator.|
|Once emulation has started, the power button turns into the Cancel button , this is now used to stop the emulator.|
|The USH-26 Master Clear toggle is the Master clear for the Emulator. It resets all the parameters for the NTDS Card. (Do not click this while emulation is in progress)|
|Debug Mode||The Debug Mode check box determines the amount of detail reported to the log screen. It is checked by default.|
Tape files are stored in directories with names corresponding to the tape names with the prefix "Tape_". The tape directories are marked as Hidden and System. This makes them invisible using a normal list box, so don't try to find the files using explorer.
|To put a drive in the the bay, click on the empty drive bay.|
|Selected Tape is Read-Only. You will not be able to write to this tape!|
|You can eject the tape by clicking the eject button.|
|Drive ready indication..|
To boot Software Updater from a floppy disk - Select the A: drive. Select the tape Software Updater and press the arrow key to assign the file to drive 0. You would next start the emulator from the Emulator tab and proceed to initiate boot procedures on the UYK.
|Control of the USH-26 is achieved through the use of a script language. Scripts are created by clicking on the desired function on the right side of the script selection tab.|
|Once created, a script may be saved for future use by clicking on the Save Script File button.|
|Scripts may be re-loaded by clicking on the Load Script File button.|
|When the Run button is clicked, the script will be executed. A record of the process will be created and displayed on the Log screen. The Log screen is automatically selected on completion of any script.|
WDS Tape analysis requires that you de-select VAX byte ordering and select Do Not Save Block Headers. (This selection is available on the Script tab)
History Tape Analysis also requires that you de-select VAX byte ordering and select Do Not Save Block Headers. (This selection is available on the Script tab)
|To save the log file, select the Save Log Button . This opens a standard windows file dialog box.|
|To clear the Log, select the Clear Log Button . Once cleared the log is forever gone.|
The NTDS card, Device number, and Interface speed are selected via drop down combo boxes. The defaults are the Sabtech Swift PCI ABCH card, Device NTDS0, and NTDS Fast (do not select NTDS Slow unless you are certain you are connected to an NTDS Slow device! The NTDS Slow setting will burn out an NTDS Fast card due to higher voltages!).
The Byte ordering is selected with two radio buttons the default is PC format.
To change the default directory click on the edit box containing the directory name. Drive selection and Directory selection boxes will appear. Select the desired directory and press the arrow button to commit the change.