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STACKER NOTE                                                   STACKER NOTE
Title: Stacking the HP 95LX Palmtop Computer with Stacker 2.0
STAC FAX Index #2006 - 3/06/92                          
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Background.

   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 RAM cards have their own battery to 
   maintain the data and are treated the same as floppy disks.  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 copying, deleting etc.  It 
   also 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.                               
    
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Copyright 1993, Stac Electronics                    
