82 lines
3.8 KiB
Plaintext
82 lines
3.8 KiB
Plaintext
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STACKER NOTE Stac Electronics Technical Note
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Subject: Stacking the HP 95LX Palmtop Computer
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Tech029 - 3/06/92
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2 Pages
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_______________________________________________________________________
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The HP 95LX is palmtop computer that runs under MS-DOS 3.2. It has 1mb of
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on-board RAM that is configurable between RAM and disk drive. An example
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would be configuring 256k of this on-board RAM as system RAM and the
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Remaining 768k as the C: drive. There are RAM cards available which vary in
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size from 512k to 1.5mb. These have their own battery to maintain the data
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and are treated just like floppies. There is a slot on the left side of the
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HP 95LX which accepts the cards and is referenced as drive A:. This Note
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presents a procedure for "Stacking" this A: RAM card.
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The 95LX Filer/File Transfer Utility allows file copies, deletes etc.
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It allows you to run applications, gives a shell to the DOS prompt, and
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allows connection between the HP 95LX and serial port on a desktop machine
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which runs a package called the Connectivity Pack. The Connectivity Pack
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allows you to copy files between the two machines. This procedure involves
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the use of the Filer and Connectivity Pack, but does not give detailed
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instruction on their use. Please refer to the 95LX documentation.
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Note:
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There is an external drive made by PAMCO that can connect to a desktop
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machine via the parallel port that allows a desktop machine to directly
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access the RAM cards for the HP 95LX. The current device driver for
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these drives is NOT compatible with Stacker. PAMCO is currently looking
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into this situation.
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PROCEDURE:
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Due to the lack of RAM on the HP 95LX the Stacker Install will not run.
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Therefore, a desktop machine is required for part of this procedure.
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1. On the desktop machine, run Stacker's Install program to personalize
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the files and copy them to the hard drive. After this is done, escape
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out of Install without creating a drive.
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2. Use the following command to build an empty Stacker drive on the desktop
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machine.
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SCREATE C:\STACVOL.DSK /S=1.5 /R=4.0
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This will create a 1.5mb Stacvol file with an anticipated compression ratio
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of 4.0 to 1 to accomodate the high compression ratio of Lotus 1-2-3 files.
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(The /S= specifies the size of the RAM card in MBytes. The size may vary
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depending on the size of the RAM card.
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3. Use Sattrib to remove the hidden, system and read-only attributes of
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the Stacvol file with the following command:
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SATTRIB -R -H -S C:\STACVOL.DSK
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4. On the HP 95LX, while in the Filer utility, choose SYSTEM to get
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to a DOS prompt.
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5. Make certain there is no data on the RAM card which should be in drive A:
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6. At the root directory of drive C: on the HP 95LX add the following
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line to the CONFIG.SYS file: (If a Config.sys does not exist, create
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one by typing: Copy con Config.sys <Enter>...then add the device
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line <Enter>...then press <ctrl z> to save the file)
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DEVICE=C:\STACKER.COM @
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9. Using the Connectivity Pack on the desktop machine and the Filer/File
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transfer utility on the 95 LX, transfer STACKER.COM and SCHECK.EXE to
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the Root directory of the 95LX.
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10. Transfer STACVOL.DSK from the desktop machine to the RAM card in drive A:
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11. Re-boot the HP 95LX to load the Stacker device driver.
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12. Mount the A: Stacker drive by typing STACKER A at the
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DOS prompt. Conversely, you may unmount by typing STACKER -A .
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You may want to create batch files including these commands so the
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Stacker drives may be mounted and unmounted directly from the Filer.
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==============================================================================
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1992 STAC ELECTRONICS
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