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