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*** hermocom Doublespeed driver installation ***

This instruction sheet describes how to use the doublespeed upgrade of 
your HP palmtop. This document is only valid for 32 MHz doublespeed 
upgrades, e.g. the product "LXDS32MM" by hermocom, which is installed in 
most palmtops sold by hermocom and also sold seperately as an upgrade 
kit. 
It is not valid for the Times2Tech doublespeed upgrade, which 
operates at 31.673 MHz and needs the "SPD31" driver. For the 32MHz 
upgrade, you need the "CLKUP32" driver described below.


Your palmtop may show a scrambled screen when booting up the first time 
or after a complete power loss and hence erased C: drive (e.g after 
drained main and backup batteries). This is normal and no sign of a 
hardware failure. It is caused by the doublespeed upgrade. You need to 
install the doublespeed driver in order to avoid this. Please read on.

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*** Technical background (skip if it does not interest you): ***

The reason for the scrambled screen is, that the upgrade is done by 
replacing the main "clock" of the palmtop, a Quartz crystal which 
oscillates at a specific frequency when voltage is applied, by one with 
a higher clock frequency. The original quartz crystal oscillates at 
about 15.8 MHz, resulting in a CPU freequency of almost 8 MHz. 

The doublespeed upgrade quartz oscillates at 32 MHz, which results in a 
CPU frequency of 16 MHz.

This higher clock frequency causes some components of the palmtop to 
operate at a higher speed with various effects, e.g.: 
- The screen (scrambled characters, sometimes readable, sometimes not; 
  sometimes screeen contents are shifted to the right by two character 
  columns) 
- The communication ports (no or errornous communication) 
- The loudspeaker (beeps have higher frequency and are faster) and 
- Of course, the main processor (higher processing speed)

The doublespeed driver compensates these effects for all components but 
the processor completely.

The doublespeed driver must be loaded from the config.sys startup file. 
Since this file is executed shortly after the beginning of the boot 
sequence and not at the very beginning, the first boot messages of the 
BIOS remain scrambled if they were before. (On some doublespeed 
palmtops, the screen is well readable even without the doublespeed 
driver).



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*** Which doublespeed upgrade do I have? ***

If you are unsure which kind of doublespeed upgrade you have installed 
in your palmtop, please remove the backup battery and look, at good 
lighting, into the backup battery slot. At the end of the slot, you see 
the installed crystal. You may be able to see some numbers printed on 
it.

Also, hermocom applies markings to the quartz which are visible from 
outside. Here are the descriptions of the numbers and markings:

- If the numbers read 158 CP52, it is an original quartz, and 
  no doublepseed at all.

- If there is printed F31.673 on the component, you have a Times2Tech 
  doublespeed installed and need the SPD31 driver, not the one described 
  here.

If you see no numbers, maybe there are hermocom markings visible:

- If you see one diagonal slash on the component, it is a singlespeed.

- If you see two diagonal slashes on the component, it is a Tiems2Tech 
  doublespeed (SPD31 needed)

- If you see three diagonal slashes on the component, it is a 32MHz 
  Doublespeed (CLKUP32 needed)

You can see photos of the quartz and the battery slot on 
http://www.daniel-hertrich.de/200lx/#t2tspeed

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*** Installation and handling of the CLKUP32 driver provided by hermocom ***

Please use the contents of the file "hmcspeed.zip", downloadable from 
http://www.hermocom.com/en/download/hplx
This ZIP file contains a driver setup, which is specifically prepared 
for the 32MHz doublespeed upgrade sold by hermocom.

Please unzip the package and place all the contents, preserving the 
directory structure, onto a flash card or SRAM card which is readable by 
your palmtop.

Attention: One of the files is the CONFIG.SYS file, which may be 
invisible under Windows, if you use the default Windows Explorer 
configuration, which hides system files from the user. Please follow 
these simple instructions (taken from 
http://www.microsoft.com/windowsxp/using/helpandsupport/learnmore/tips/hiddenfiles.mspx ) 
to make sure you copy all needed files to the card, if you use Windows 
Explorer:

   To see hidden files:
   1. On the Tools menu in Windows Explorer, click Folder Options. 
   2. Click the View tab. 
   3. Under Hidden files and folders, click Show hidden files and folders. 

In the root directory of the card, there must be the files CLKUP32.SYS, 
CONFIG.SYS, AUTOEXEC.BAT and AUTOEXEC.C as well as the BIN directory, 
containing some tools.

Insert the card into the palmtop, then switch on and reboot the palmtop 
(Ctrl-Alt-Del) or insert the batteries for the first system boot. After 
some probably scambled and unreadable BIOS messages, the screen should 
become readable and you are prompted to hit enter to install the 
doublespeed driver. Please do so. The driver and the necessary startup 
files will be installed on drive C:.

For the next reboot, please remove the flash card from the slot. 

If you want to use the flash card continuously in the palmtop for other 
purposes than installing the driver, you may do so. However, the palmtop 
will always go into the driver installation routine if you have the card 
inserted during a reboot. So when rebooting, make sure you remove the 
card first. You can reinsert it directly after the reboot.

If you need to reboot often and/or don't want to remove the card for 
each reboot for any reason, you have two other options:

1. If you don't need to have the driver installation routine available 
   on the card, you can delete the driver installation files form the card.

2. Or you may rename the file "CONFIG.SYS" on the card to something 
   else, e.g. "CONFIG.DS", which will make the palmtop ignore the card in 
   the boot process. If you ever need to restore the driver afterwards 
   using the card, you only need to rename the file back to CONFIG.SYS 
   (using a PC or laptop, if the palmtop has a scrambled screen without the 
   driver; otherwise you can also do the renaming on the palmtop directly 
   of course) and follow the installation instructions above.



Background about the boot sequence of the palmtop:

The palmtop by default seeks the drives A: (card), C: (RAM) and then D: 
(ROM) for a CONFIG.SYS file. The first drive where the CONFIG.SYS file 
is found is used for the startup procedure. When the card is insertd, 
the palmtop will use the card's startup files. First the CONFIG.SYS file 
is used to load the drivers and configure the settings given in the 
CONFIG.SYS file, afterwards the AUTOEXEC.BAT file, if present at the 
same location as the CONFIG.SYS, is executed. On the card, this 
AUTOEXEC.BAT contains the driver installation commands. Hence, if you 
adjusted the default autoexec.bat or config.sys on D: and saved the 
modifications on C: or A:, overwriting them may result in lost custom 
settings or bootup sequences.

The hermcom driver card setup backs up your original config.sys and 
autoexec.bat, if there were any on C:, as CONFIG.HMC and AUTOEXEC.HMX on 
C:.


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*** Disclaimer: ***

hermocom cannot be held responsible for any data loss or damage to your 
software or hardware caused by the usage of this software or incorrect 
handling of the doublespeed upgrade.



(c) 2008 by hermocom