Welcome to my Homepage!

On this homepage you will find information about my Soft- and Hardwareprojects for several computer systems. The navigation bars on the left and top will bring you directly to the different topics. The language selection between German and English is done automatically if your browser is properly configured; should you prefer another language, please click on the desired flag on the top-right.

Please also sign my Guestbook. Accolade and criticism is highly welcome. I will try to improve the content of this homepage according your suggestions. I would be also happy to get feedback regarding my projects - what do you like/dislike and what do you want to see in the future?

But now I wish you much fun by searching about these pages!

Stefan Robl

Homepage Update History
"CW 1 to 53" V1.1.3 released
Changes in this version:
  • Resolved an issue causing the first calendar week of the current and next year to be incorrectly highlighted.
  • Corrected a visual glitch that resulted in text being partially trimmed due to rounded corners.
  • Adjusted the default calendar week setting to align with the US format for users in the region "US" after installation.
"CW 1 to 53" V1.1.2 released
Changes in this version:
  • Fixed tint color of title in watchOS.
  • Changed back/forward button color from blue to black color in iOS.
ExifRenamer V2.4.0 released
Here are the changes of this version:
  • ExifRenamer is now a Universal macOS Binary and runs on the super cool Apple Silicon Macs and Intel Macs natively.
  • ExifRenamer did not update the creation date (if this option was activated) for the case that the file name didn't change during renaming.
  • Fixed a daylight savings time problem when handling RIFF/AVI file formats.
  • Fixed broken PayPal link.
"CW 1 to 53" V1.1.1 released
This version makes the app compatible with older devices running watchOS 6 and iOS 13.
"CW 1 to 53" V1.1.0 released
Here are the changes of this version:
  • Made the calendar week list the root menu of the watchOS app.
  • Fixed the extra large complication where in some cases the displayed information was to wide an truncated by watchOS.
  • Added an iOS app to the standalone watchOS app due to the fact that a lot of users complaining that they weren't able to install the watch app due to a known bug within the iOS/watchOS AppStore infrastructure.
  • Recompiled using the latest version of Xcode
"CW 1 to 53" V1.0.2 released
Here are the changes of this version:
  • Recompiled using the latest version of Xcode
  • The data displayed in the user interface is now updated in more occasions
  • Added a version information in the main menu
"CW 1 to 53" V1.0.1 released
Here are the changes of this version:
  • The calendar week list is now updated if the week has changed since the last start of the app
  • Added support for the calendar week systems ISO8601 (Europe) and US (changeable in the app settings)
  • Added information about the number of calendar weeks of the current year to the weekly list ("#CW: xx")
"CW 1 to 53" V1.0.0 released
At least in Europe, planning on the basis of calendar weeks is an indispensable tool in professional life.
As I am an avid user of Apple Watch and would like to have the current date together with the current calendar week always displayed on the watch face, I looked around for appropriate apps. Apps already exist, but none of them met my expectations in terms of configurability, functionality and ease of use with a visually appealing user interface.
For this reason I developed my own app for the Apple Watch, which I publish hereby.
Oscilyzer V1.0.0 released
Since I have been interested in digital measurement technology for a very long time, I developed an app many years ago, which is a combination of oscilloscope, spread spectrum analyzer and AM/FM synthesizer. This app has been continuously improved for a long time, adapted to new technologies (e.g. Apple's graphic accelerator Metal) and always used only for me personally.
But since the state of the app can be described as mature and surely other people can use it for their own experiments and measurements, I decided to publish it now... :-)
Compatibility information about ExifRenamer and macOS "Catalina"
Due to the fact that I get repeated requests about the compatibility of ExifRenamer to macOS "Catalina":
Since version 2.2.0, ExifRenamer is a 64bit application. During 2018/2019, I've spent quite some time to clean up the source code of ExifRenamer to being able to provide a modern implementation of this application.
As a result, I've successfully tested ExifRenamer with the beta and release versions of macOS Catalina! :-)
ExifRenamer V2.3.3 released
Here are the changes of this version:
  • Added support for file formats using the QuickTime movie container (MOV, MPEG4, MP4, M4V, ...).
  • Fixed a problem which caused a crash when ExifRenamer tried to append evaluated file type suffix information.
  • Fixed a problem with retrieving a correct date/time from RIFF/AVI file formats.
  • Added support for the ancient JPEG "Picture Info" tag which was used by certain old cameras.
  • Added the possibility to filter out all Exif dates which appear before a definable date. This allows to deal with unset camera clocks or broken time stamp information.
  • ExifRenamer now allows to use the file modification date as date/time source, as well (selectable within naming style preferences).
  • Changed the way how ExifRenamer handles hidden files and folders: Previously, only files with "." as prefix were ignored. Now, all files and folders (!) which are invisible within the Finder are ignored. This option can be disabled.
  • Added the possibility to add a suffix to the counter. This makes it possible to recreate the Finder's typical "Name (2).jpg" scheme in case of multiple files with identical names.
  • Fixed the behaviour of the subsecond options %b and %B to match the description.
ExifRenamer V2.3.2 released
Here are the changes of this version:
  • Fixed a bug which caused ExifRenamer to "forget" several preferences settings.
  • Fixed some typos in the German translation.
  • Improved the version check mechanism to correctly show update information when using beta versions of ExifRenamer, as well.
ExifRenamer V2.3.1 released
Here are the changes of this version:
  • ExifRenamer is now able to create hierarchical folder structures when moving the pictures. For example, you can now generate folder structures like YEAR/MONTH/DAY/picturename.
  • Fixed multiple typos within application and documentation texts.
  • Reduced the size of the enclosed introduction/documentation PDFs.
  • Added support for the "Hardened Runtime" on macOS 10.14.
  • ExifRenamer is now a so called "Notarized App" which means it is checked through Apple's security servers. This feature was introduced by Apple with macOS Mojave.
  • Added twitter links to the about window and the documentation.
  • Added the possibility to extract and use GPS location information as placeholder.
  • Fixed the missing realtime update of the name preview when typing within the prefix/suffix text fields of the confirm file/folder windows.
ExifRenamer V2.3.0 released
Here are the changes of this version:
  • Integrated the new application icon which was designed by Benjamin. Thank you so much Benjamin for your incredible work and effort you've put into this topic! The new appearance of ExifRenamer was worth an increase in the middle digit of the version number... ;-)
  • Fixed a problem within preferences, where the substring type popup button was not updated with the saved setting.
  • Added a dedicated "Drag&Drop Window" for those users who do not want to use ExifRenamer's application icon as drag&drop-target.
  • The renaming confirmation window is now shown directly below the renaming progress window.
  • Fixed a bug which caused ExifRenamer to assume that no change in the file name means "file already exists".
  • The file/folder status in the confirm info window is now updated during typing.
  • Added support for adding subsecond information to the format string.
  • Fixed a problem where ExifRenamer used the wrong prefix/suffix setting when a custom prefix was set within the "confirm each file" dialog but the renaming was performed without "Confirm each file" option active.
  • Added the option to evaluate the file type suffix from the file contents.
  • Added the option to skip renaming if a file date was not retrievable, at all.
  • Added support for macOS Mojave's "dark mode".
  • Limited the automatic update check to a maximum of once every 24 hours.
  • Applied UI improvements for Retina displays.
Added a new JavaScript section
This new section currently contains ports of some of my old Java applets which makes it possible to run them in every web browser.
ExifRenamer V2.2.3 released
Here are the changes of this version:
  • Fixed the application signing process to avoid a warning from macOS Gatekeeper about the app being from a non verified macOS developer.
ExifRenamer V2.2.2 released
Here are the changes of this version:
  • Corrected handling for handling endianess of RAW files (Motorola/Intel)
  • Fixed detection and processing of Nikon RAW files (.NEF)
  • Added the option to drop files to the about window for easier drag&drop operation.
  • Fixed a serious bug which caused the "Skip" button to operate identically to the "Rename" button.
  • Fixed support of TIFF format.
  • Implemented an automatic update check on application launch (deactivatable).
  • ExifRenamer now opens the about window if the dock icon was clicked while ExifRenamer is still running.
  • Completely reworked the user interface to allow easy translation to other languages.
    If you would like to translate ExifRenamer to your language, please contact me!
ExifRenamer V2.2.1 released
This version fixes a lot of smaller issues which mostly were present due to the massive work required to make version 2.2.0 possible.
Here are the changes of this version:
  • Fixed the App Icon by replacing the old .icns file with an Images.xcassets variant.
  • Fixed a serious bug which made ExifRenamer unusable if one of the new Exif format string options (%xE) was used.
  • Added support for adding further Exif Information to the file names of the renamed pictures using the different %xE options. I added this option somewhen within the last 8 years, forgot about it and accidentally released it in a buggy state in 2.2.0.
  • Added support for the second generation Canon RAW format (CR2).
  • Fixed handling of certain RIFF/AVI/WAV date/time formats.
  • Fixed the "delete files" option which was accidentally deactivated in the last release.
  • Removed debug outputs.
  • Integrated this "Version History" text into ExifRenamer's "Donation Information" window.
  • After confirming the "Donation Information" window, the "About" window is now shown instead of the "Preferences" window.
  • Changed the shortcut for opening the "Preferences" window from Cmd+P to the commonly used Cmd+, shortcut.
  • Cleaned up Info.plist contents to match the latest recommendations for macOS.
  • Performed a whole lot of internal code cleanup.
ExifRenamer V2.2.0 released
Hey, I'm back with some news after so many years! Stay tuned! :-)

After having started a complete rewrite of ExifRenamer using Swift, it became more and more clear that this project will cost more time as I can currently invest in my spare time.
As an update of ExifRenamer became urgently required (due to the 64bit requirement of macOS High Sierra), I decided to go back to the old code basis and two perform the "Swiftyfication" on an incremental basis in the future.
It was a huge task to make ExifRenamer's ancient code compilable with the latest Xcode. A lot of code cleanups and internal changes were required. But in the end, I succeeded in bringing ExifRenamer "back to life"... :-)
ExifRenamer now is a 64bit and 32bit (x86) application with a deployment target of macOS 10.11 or later.
ExifRenamer V2.1.3 released
This version provides compatibility to Snow Leopard's "Image Capture" and fixes several smaller issues.
ExifRenamer V2.1.1 released
This version provides a "Check for updates..."-feature and fixes a language-problem of the PayPal system.
ExifRenamer V2.1.0 released
The main feature of this version is that ExifRenamer now is a Universal Binary application which runs natively on Mac OS X machines equipped with an intel or PowerPC processor. This version also fixes some smaller bugs.
I am currently working on a new major update of ExifRenamer which I could have ready within some weeks if I have enough spare time left.
Classic-Computing 2007
Classic-Computing 2007 On 2007-09-30 I visited the small show "Classic-Computing 2007" in Stuttgart/Germany. If you like to see some pictures of this exhibition, feel free to visit my picture gallery.
Summary 2006 / Year 2007 greetings
In spite of the enormous delay, I have decided to publish a summary of my personal year 2006:
English version / German version
Doing hardware developments, again
Hardware development After having spent quite a lot of my spare time for several software developments, I have started developing hardware, again. By following the title link you can see some pictures of the setup I have worked with recently.
GB60Board schematics and layout released
GB60 Even though I've finished this board already at the beginning of the year, I've found no time for a release until today.
I now release the schematics, the layout and a short documentation together with a demonstration firmware to allow a greater audience to get access to the outstanding 9S08 family of microcontrollers from Freescale. I am sorry for the delay and hope that you'll like this project!
Golden Image Mousepad
If you own one of those old, but really excellent optical Amiga mices from Golden Image but seach for a new mouse pad, I can provide some help: Just print this picture with a high resolution printer... ;-) Works really very well! Unfortunately I have forgotten the correct scaling factor. However, it is quite easy to find out the right dot size - especially if you still own the old (damaged) mouse pad.
Summary 2005 / Year 2006 greetings
English version / German version
Laser photos
Laser photos At New Year's eve I provide instead of a firework some laser photos.
Lasers are as well "colorful" and - correctly used - as effectful as a firecracker... ;-)
Universal "GB60Board"
GB60 Some weeks ago I finished my design of a very small, universal microcontroller board powered by the Freescale 9S08GB60 microcontroller. I will publish a whole lot of information about this board within the next time.
Pictures of july/august 2005
Pictures of july/august 2005. To add some more recent content to my photos section, I have made a gallery of some pictures I have taken in july/august of summer 2005.

I hope you enjoy them!
Experimental driving circuit for a synchronous harddrive motor
HD-motor Some days ago I played around with a killed harddrive's synchronous motor which usually turns the harddrive platters. I asked myself how the driving circuit would look like to bring such a motor to life.
As it sounded like an interesting experiment, I've developed an experimental driving circuit to bring the motor to it's limits. Read more under the title link (incl. video of the experiment)...
Summary 2004 / Year 2005 greetings
English version / German version
Semiconductor macro photos
EPROM-Macro Under the title link you'll find several of my recently made macro photos of semiconductors (EPROMs, RAMs, ...). For those of you who haven't seen the inside of a microchip yet, this is a must-see... ;-)
Interview with me in AmigaInsider 3 (German Language) now available
The interview was made several weeks ago and covers some details about my work on ArtEffect 5, AmiDock, the Docky system and the application.library for AmigaOS 4.
If you are interested, you can find the interview in issue 3 of AmigaInsider starting on page 12 (free download using the title link).
Nightshots 2004-11-07
Nightshots 2004-11-07 Under the title link you'll find some photos with long exposure time of a walk through Gerlingen.
Server misconfiguration!
Due to a misconfiguration of my web hoster, the scripts of my homepage aren't working fully correct. I am in contact with my web hoster to fix the server installation and to bring this site soon completely online again.
Sorry for the trouble!
2004-07-21, Update: The problems have been solved in the meanwhile - everything now works again as usual.
Holiday 2004-06
Holiday 2004-06 Under the tile link you can find some pictures I took during my holiday which I spent in the Upper Palatinate (Oberpfalz/Germany), my parent's home area.
AmigaOS 4 event in Essen, Germany
AmigaOS 4 event in Essen, Germany On 2004-05-15, an AmigaOS 4 event took place in Essen, Germany. I attended this event to meet Amiga people and to show the current results of my port of ArtEffect to AmigaOS 4.

Under the title link you can see a photo gallery of the pictures which I took in Essen.
Experiments with the microwave oven
Halogen lamp in microwave oven Yet again I did some interesting experiments with my microwave oven - but this time documented with videos and pictures. Find out more by following the title link.

Always remember:
The reproduction of these experiments is quite dangerous and probably will destroy your microwave oven!

So please don't try such things yourself!!
My first creation using GarageBand...
Yesterday afternoon I bought Apple's great software package iLife 04 containing among some other cool stuff the new software GarageBand. I wondered about what a musically totally unskilled guy like me could do with it... I have to say, for my programmers hands :-) it doesn't sound that bad... if you want to judge yourself, download it here: SecondRhythms.mp3 (8.9MB)
The name was chosen because it was my second project file... the first one noone really wants to listen to... ;-)
I would highly appreciate becoming feedback!
A Merry Christmas and a Happy New Year 2004!
English version / German version
A tubes amplifier for relaxation...
tubes at night
(click to enlarge)

(click to enlarge)
When you have heavy stress in your daily life, a nice and warm open fire can bring an excellent relaxation. Due to the lack of a fireplace and a fire I decided to cope with stress electronically:
By using a selfmande tubes amplifier (it does glow at least)! ;-)

On the left you can see the first minutes of my prototype.
The sound quality surely cannot compete with high-end amplifiers but it is enormous impressive, though.

At the beginning, it showed a noticeable noise which I could track down to a tendence to oscillate at VHF at about 110MHz. After suppressing this characteristic, the amplifier now produces a crystal clear signal!

I'm looking forward to enjoy MP3s at evenings in the future!

BTW: 18 watts of power is needed to heat the tubes alone!! ;-)
Change of my web hoster
Within the next few days, this website will be transferred to a new web hoster. Of course, in theory, the transition should happen without much problems - but we all know Murphy's law...
So if you encounter page downtimes or bounced mails, please try again later...
Many thanks for you patience!

The transition was done without problem or any time offline!
Sitemap added
For having a quick-access to all subpages of my homepage, there now is also a sitemap.
Not recommended for reproduction... ;-)
(click to enlarge)
As it should sufficiently be known, I am a fan of strange experiments - that means small things with a great effect... Because of that, I became anxiously to do something with a lamp which sayed goodbye with a small >Plopp<...

As I'm a fan of plasma light effects and because I already have reached great results with coils in the microwave field to produce large sparks (I also succeeded to make other things to send out light, too...), the idea was not too far away: that lamp had to be tested in my microwave oven...
Hmm... what shall I say: the plasma light I have reached in this experiment was the best I have ever seen in my microwave. However, after about 3 seconds of operation (at 70Watts of microwave power), the fulminant joy of light found an end with a last and final (but much more fulminant...) big bang which unfortunately for sure did disturb the sleep of some inhabitants here in Gerlingen... ;-)

Fascinating how robust the construction of those microwave oven doors are... ;-)

This experiment is explicitely not recommended for reproduction!!!
Off Topic: Chris Kennedy's CD "Change Of Heart" now available!
During my studies in Regensburg, I met a remarkable student from Great Britain who had astonishing capabilities in terms of music - Chris Kennedy. Together with my best friend Roland Menzel, they recorded and mastered a CD full of really cool music done at several locations.
Note that it is not a usual thing that I post off-topic stuff here, but this music is really very professional and I hope that my friend Chris gets some more fans when publishing this news here... ;-)
Just have a look at Chris' page and decide yourself!
Article about AmiDock and application.library publically available
In february 2003 I wrote an article about the features of my projects AmiDock and application.library which will be included in AmigaOS4.0 for the "Club Amiga" magazine. Amiga Inc. decided to make this article now also publically accessible for other readers.
You can access it over the title link; I hope you enjoy the reading... :-)
... arrived in Gerlingen!
Gerlingen - arrived
(click to enlarge)
Two weeks after arriving in Gerlingen (a nice little town very near Stuttgart, Germany), I wanted to let you know that things are stabilizing and the stress of the moves Regensburg -> parent's home -> Gerlingen more and more goes away.
On tuesday I will have worked for my employer Endress+Hauser Conducta for already two weeks now... ;-)
Things are nice and cool here in Gerlingen but I still need a bit time for acclimating.

Now I have to find a rhythm again to answer my floods of emails and to work (of course a bit more slowly than before) on my projects.
You can find the updated contact addresses on my about page.
Goodbye Regensburg...
Goodbye Regensburg
(click to enlarge)
On 2003-02-28, my last day in Regensburg was over. As my future living- and working-location will be Stuttgart, I had to relutantly leave Regensburg. As I've found very good friends there, a last joint 'goodbye-meal' was unalterable... I again want to thank all my friends in Regensburg for the fantastic time!!

Note: Although I'm out of Regensburg, I'm definitely not out of world! ;-)

Important:  My address and phone number used in Regensburg is not valid, anymore!
After finishing my move to Stuttgart, I will provide updated contact data.

Furthermore I want to apologize myself for any delays which may happen in answering enquiries.
Thank your for your understanding!
A Merry Christmas and a Happy New Year 2003!
English version / German version
ExifRenamer V2.0.1 released
This version is fixes some smaller bugs of version 2.0 and doesn't introduce new features - but it is worth to update it!
How to repair keyboards...
If you have a broken keyboard where one ore more keys don't respond properly, anymore, then you should read my description how to repair it in a clean way. Read more under the title link.
Java Applets-pages updated
Being also a Mac OS X user since the first day, I didn't like the fact that the applets on my homepage only worked with very few OS X browsers. I have checked several times and read a lot of documentation and I'm sure that there is a bug in OS X's appletviewer which has to do with parsing URLs. My used URL-scheme (for example ?location=applets/vlife/index) seems to confuse the URL parser.
Today I discovered a way to get all applets in spite of this problem to work by using absolute applet paths.
I have checked with every Java-enabled browser on my systems and now it works everywhere! All pages in the Java Applets section have been changed - some were even relayouted for better "user experience".
Unveiling OS3.9's AmiDock Easteregg... :-)
Yes - you perhaps never did expect that but AmiDock has an Easteregg, too... :)
As I do not know a not trustful person which could be used to spread around how this Easteregg is accessible by rumors, I had to describe it myself on my homepage... ;-)
If you're interested, please read on...
ExifRenamer V2.0 released
This version is completely rewritten from scratch and contains a lot of new features. The most important of all is, that it's now possible to fully customize the naming styles. Now there also is a better interactive mode with file preview. More then ten new features have been added and a lot of problems of the old version were solved. ExifRenamer now should be perfectly suited for normal and professional photographers.
AmiDock OS4 screenshots available
I'm proud to present you the first in-detail screenshots of the new AmiDock I developed for AmigaOS 4. The title link will bring you to the official AmigaOS 4 website of Amiga Inc.
Completely rewritten homepage is now online alt After almost 4 years it was time for a completely redesigned homepage. As "memory" to the old page you can have a look at the old main page on the left (click to enlarge). The old design had too much restrictions if it came to external links, multi-language support, etc. Besides that, the old homepage was hostet on a server which didn't allow to run custom scripts. This was the reason why I had to use a external guestbook (including ad banners...) and external counters.

These and other problems now belong to history!
All pages are now hostet on a big bundle of puretec, which does provide beside a lot of storage space nice features like custom scripts/CGIs and also database-access. On this platform it was possible to establish the new design.

I was asked again and again to also provide a German version of my hompage. Now I have decided to provide the whole content in two languages (Germand and English). The needed effort for translation was tremendous. The new homepage identifies your preferred language on your browser's language setting and displays all pages accordingly. Should you want to change the language, then just klick on corresponding flag on the top right.

With the new design all problems with external links are finally solved. In the past, external links propably pointed to sub-pages; because of this, the navigation-bars were suppressed - the main pages were not reachable easily. Because I wanted to avoid JavaScript for compability, there was no suitable solution for the old homepage. The new design - made completely without frames - allows a correct display.

Speaking of compability: The new homepage was tested on all reachable browsers (running on AmigaOS, MacOS, Windows, Linux, QNX, WindowsCE) and displayed correctly. This is possible, because I consequently avoided to use CSS, JavaScript, Java-Navigation-Applets or Browser-proprietary features.

All former external tools like the guestbook and counters are now running directly on - the response time improved and I could eliminate all ads of external companies by doing so.

The page content has been extended drastically; a lot of sub-pages were added to the categories Amiga and Electronics. The different sub-pages were also re-layouted. A summary of all changes would be too long. Searching about these new pages is surely not wrong...

But now have a lot of fun with the new!

PS: If someone finds typos or errors in the content, then I would be happy to get a short notification!
Studies finished (the first one)!
Today I got my diploma - I now have successfully finished my studies of Computer Science at the Fachhochschule Regensburg!
But as you may know, I'm some sort of crazy: my next goal is to study Physics at the University of Regensburg. Physics was and is very interesting to me and as this is propably the last chance in my life to study physics, I decided to do it... :)
ExifRenamer V1.3 released
Version 1.3 of ExifRenamer contains a cuple of smaller bug fixes. It now has Dutch localization added and supports TIFF files. Furtheron, ExifRenamer is now capable to rename raw (.crw) pictures when there exists a .thm file (for example Canon D30). It now also supports high-speed cameras which are capable of taking several photos within one second.
Current status
At the moment, I'm finishing my studies and besides that, I do a lot of stuff. The most important thing is my work in the AmigaOS4 development team. Then, I do again some ColdFire related stuff and improve also some other software available from me. Prepare yourself on updates of BDMDebug, DPMSManager and ExifRenamer (perhaps other stuff will come along, too.). I'm also working on some nice Mac OS X related things. It is to early to tell you any detaily on this, though. More to come withing the next weeks.
A Merry Christmas and a Happy New Year 2002!
English version / German version
ExifRenamer V1.2 released
ExifRenamer replaces my former program CasioRenamer. This version fixes some problems of the previous version and introduces some helpful new features.
The first Euro money in my hands!
Euro coins
(click to enlarge)
Even if I have not time for providing something thrilling new, I wanted to note this (Ok, it is a bit off-topic but still interesting). As the currency changeover on 2002-01-01 will bring to all Euro-supporting states the new currency "Euro" ( € ), the banks offered a first "Starter Kit" for the people to get accustomed to this new currency. The Starter Kit contains coins of the value €10.23 (equally to DM 20). Quite fascinating to have a totally new currency in two weeks...
CasioRenamer V1.1 released
This small update fixes some minor problems.
CasioRenamer V1.0 released
Some weeks ago, I wrote a little tool which is able to rename digital photos by its embedded date informations to avoid naming styles like "pic0001.jpg". This program names the pictures after their time information in the style "YYYY-MM-DD_hh-mm-ss.jpg". I decided that this program could be useful for some other users, too. Amiga-Users can use for this purpose my AmiCamedia program, available at Haage&Partner.
CasioRenamer was written for Mac OS X 10.1

Amiga-Users: Please don't think that I will stop development for AmigaOS! I'm just rather busy at the moment (diploma thesis!) and have no time for larger projects. My current plans are also targetted at the next-generation Amigas (AmigaOne/Pegasos) using high-speed G3/G4 CPUs. More to come. :-)
Some words about the 11th september attacks in the USA...
I hardly can find words about what happened yesterday. It is really a shame that there are such criminal elements on earth who are willing to direct such a massaker to people. My deep sympathy with all Americans. Let's hope the best!
DPMSManager V1.23 released
Sorry. The last release didn't solve the problem completely. Also forgot to remove a 10 seconds delay used for debugging.
DPMSManager V1.22 released
This update fixes a small problem with VisualPrefs.
Added a new applet to the Java Applets page
First of all, sorry for the silence. Can't help. I really have enough to do at the moment. Anyway, if you're interested, have a look at the Java Applets-page to see the FuzzyLogic-based WaterMixApplet.
FMdriver 1.25 released
I'm glad to announce the availability of FMdriver V1.25 which contains some very useful enhancements. Now you can save and load several different video configurations (for example for 4:3 and 16:9), make time-lapse animations with FMRecorder. There were also a lot of minor fixes, FMdriver should be now really almost be perfect... ;-)
FMdriverVHI V1.25 released
This is a completely reworked version of my first FrameMachine VHI driver. This one should now really remove any problems caused in conjunction with VHI. You now also can use your several different configurations of the FMdriver system in your favourite VHI application. This VHI driver bases to 100% on my newframemachine.libary which is included on the FMdriver package (you need to download this for using this driver, too!).
A Merry Christmas and a Happy New Year 2001!
English version / German version
FMdriver V1.14 beta released
This is the beta version of my FrameMachine video driver, it should be again a little bit faster and has a lot of more features than the last public release. Until february 2001, I cannot provide very good support for this as I now want to freeze all my projects to go on with my study. Thanks for your patience!
vlife applet released
Now the Java version of AVL is finally finished and available on my Java Applets page.
Lost all eMails of 2000-12-14/15 !!!
If you have sent me an eMail, please resend it so I can answer it! Sorry!!
Opened up a Java Applets page
This new site contains some small funny and/or useful Java Applets which I mainly wrote to satisfy my interests in java coding... :)
AmigaMPEGPlayer V1.02 for the AmigaSDK released
AmigaMPEGPlayer now is up to 25% faster and has a file requester.
writepixel V1.05 for the AmigaSDK released
It now has a sizeable window and a much cooler color gradient which changes with mouse position and time.
AmigaMPEGPlayer for the AmigaSDK released
(click to enlarge!)
This is version 1.00 of a MPEG Video Player for the Amiga SDK. It can playback MPEG-Anims and MPEG-System streams. Audio is not played back because the SDK supports up to now no audio output.
writepixel for the AmigaSDK released
(click to enlarge!)
writepixel is a very small (less than 1kB!) demo showing a realtime color gradient and transparency effects.
AmigaSDK in Action!
AmigaSDK running some stuff
(click to enlarge!)
Of course I have installed the AmigaSDK on my Linux-machine, too! At the moment I'm "playing" around with the VP-Assembler (VP = Virtual Processor) and trying to port over some useful programs.
The new system is really impressing fast and it is rather easy to code for it, too. But we all programmers wait for the really needed SDK-update to get the final GUI and of course Sound-support, too.
The picture shows the SDK running Quake, a selfwritten WritePixelDemo, Tunnel and of course the nice BoingBall... ;)
Software updates will follow soon!
Users of my PPCjpeg- and FMdriver-Software will soon be able to download much improved versions of the two titles. More news about this in several days!
How to flash a PC FlashBIOS... :)
Flashing a PC BIOS is simple? Not always... Not in my case... Read this short story about a really unconventional way to solve this normally quite simple task... ;)
ColdFire 5206e PCB Layout released
On public request, you now can download the PCB Layout I used for the ppQBox ColdFire CPU-board. For more information, follow the title link.
OpusSMBHandler 1.0 released
This ARexx script lets you browse through a Windows network environment with OpusMagellan. It provides the basic operations like copy, delete, rename and browse.
Amiga Autoconfig Boards
Incredible: by cleaning up my "hardware-development-table", I found a very old hardware-design of a A500 ZorroII-Board I made for testing the Amiga Autoconfig. There is also a newer version for the A2000-A4000.
BDMDebug V1.02 released
Some problems have been fixed. It should now work on WinNT, too.
DCTV infos...
Several users contacted me about my search for infos about DCTV. Now I know, that the people from Digital Creations formed together with people from NewTek a new company, called "Play Inc.". I have contacted Play Inc., let's hope that I get more information. Many thanks for your help!! Anyway, if someone knows more about the programmer or about the way DCTV works, I would be glad to get an eMail from you!
Infos about the DCTV wanted!
Around 1990, there was a incredible little hardware-box connected to the video port of the Amiga. It could display millions of colors with only little memory requirements. This hardware was produced by "Digital Creations"; the programmers were "Bill Barton", "John Botteri", "Randy Jongens" and "David Porter". What I need are contact addresses to the programmers or descriptions/sources about the used algorithms. If someone of you knows something, please don't hesitate to write me an eMail! DCTV Logo (the DCTV logo)
BDMDebug V1.00 released
This is a powerful Windows based (sorry for this!!!) BDM Debug Tool for Motorola ColdFire CPUs. If you're a developer of hardware designs using this type of CPU, this tool is a "must-have"... :)
CGXBlanker V1.25 released
A lot of good new features (ARexx interface, "Don't blank if mouse is over titlebar" option, ...) and a new blanker module "Pipe" were added!
DPMSManager V1.20 released
A lot of good new features (shell support, NOMOUSE, deactivateable DPMS-stages, ...) were added!
Now I can program my ppQBox in C!!
My brother Christian succeeded in making a GNU C ColdFire cross compiler for my SUN.
But this is only the halve thing. The output' ELF-file is not a directly runnable executable file. The platform using it needs a loader for it.
After about 2 days of searching for ELF-manuals, analyzing the output and programming the loader I'm now happy to tell you, that I now have no problems to run C-programs on my ppQBox. Now it should be much more easy to go on with developing the QOS... my own Operating System for the (pp)Qbox... :)

After finishing the network-hardware and adding a small speaker to the board (for some noisy output... :) ), I'm now working on the network software between my Amiga and the ppQBox. It's development state is about 75%, I think. I already have packet transmission between both computers and looking forward to finish the whole thing in some days.
BDMDebug finished
BDMDebug This my ColdFire BDM-Debug interface control program. I had to program it for Wind*ws because I get the needed DLL-file for controlling the interface only there. I'm sure I will make later an Amiga-port of this. I will release this tool it in the next days. More about it you find here.
Homepage updated
Because I now have some free time (semester holidays), I now have more time to work on my projects.
  • If you want to read more about the current status, please look here.
  • If you want to see my room how and where I do this, look at the pictures provided here.
  • Now you can download also my PGP-key.
GuestBook added
Now I have installed a GuestBook on my page. Feel free to add comments about this page and my projects!
FMdriverVHI 1.1 released
This VHI driver fixes some problems and runs well with the V4 of VLRecNG.
ArtecScan2.00alpha2 released
For registered users of ArtecScan: Here is now the release of the alpha2 version of the new ArtecScan2.0. It should solve several problems. Please contact me how this version works on your machine!
A Merry Christmas and a Happy New Year 2000!
English version / German version
ArtecScan2.00alpha1 released
For registered users of ArtecScan: Here is the release of the alpha1 version of the new ArtecScan2.0. It should solve some problems with AT3 and AT6 scanners. Please contact me how this version works on your machine!
Amiga AutoConfig(TM) Card
On request, I have added an image with infos about my autoconfig card prototype.
CGXBlanker V1.21 released
There is now a prefs program with GUI and also a very nice new blanker (Flower)... Now, there are also 020+ and 040+ optimized versions included and a installer script provides easy installation.
FMdriverVHI released
Here we have a newcomer: FMdriverVHI. It is a FrameMachine driver vor the new VHI system.
Big homepage update
I have updated almost all areas of my homepage. I also made infos available about PPCjpeg, CGXBlanker and DPMSManager.
ArtecScan2.00alpha released
For registered users of ArtecScan: Today I have released an alpha version of the new ArtecScan2.0! If you want to test it, you can get it on the Download Page. Please contact me how this version works on your machine!
General Information
My plan with the release dates of my projects was faulty. I didn't expect to have so much work to do in the 5th semester. Also, I was (and I still am a bit) ill. I have to excuse me some more time to all of you - the users of my programs. But I can't go on with the same speed like in the semester holidays... None of the projects is cancelled, but the global speed will be slowed down. My current plan of development looks like the following:
1. ArtecScan
2. FMdriver
3. PPCjpeg
4. CGXBlanker, ...
The development of the WizardClasses run more or less in parallel - all my programs need them.
The development of ArtecScan goes well (as far as I have the time...), now the V2.00alpha already makes a previewscan. But there is still much work to do until I can release a beta-version for all my registered users - but I'm on the right way! Here is a screengrab of my current development environment...
ArtecScan News
All users of ArtecScan: the waiting should soon be over - I'm now working with power on the new version 2.0 of ArtecScan. I think in two or three week should be the first beta available!
I got all my data back!!!
By replacing the defective controller-board of my harddrive, I was able to restore all the lost data! Hendrik Hanke was so kind to borrow me his harddrive for doing this transaction!! Thanks Hendrik! Special thanks to Petra Struck for the posting in the German "Amiga News", also thanks to all other users providing me tips and help!! - This is the well-known Amiga Community! :)
The worst case happened:
My system harddrive got defective and I lost all my data. Unfortunately, my Streamer-Backup is defective, too - thats the real worst-case which can happen!!!
FMdriver V1.12 released
IFF support was added and many small bugfixes / improvements were made.
FMdriver V1.10 released
There are many improvements and new features like movie recording, grabbing-program, init-tool, non-gfx-board support, etc.
FMdriver V1.00 released
A powerful new driver for the FrameMachine with PPC-support. It allows to watch TV on the Workbench!
AVL V1.00 released
A amazing simulation of virtual life.
DPMSManager V1.00 released
Runs together with other screen blankers and enables the energy saving methods of your monitor.
CGXBlanker V1.00 released
This is a small, very nice and colorful screenblanker.
The ppQBox mainboard!!
ppQBox Mainboard Jippieh!! :) 3 weeks after creating the CPU-board, I successfully finished the mainboard for my ColdFire computer!
The Board has a lot of interesting features: 256kB buffered (GoldCap) high-speed SRAM, 1-64MB PS/2 DRAM, network interface for data exchanges between my Amiga and the ppQBox, programmed GAL's for some IO, two proprietary expansion slots for additional hardware (HardDisk, Sound, IO, GFX, PCI-Slots).
More photos/infos...
PPCjpeg V1.22 released
Fantastic ColdFire results: The first working CPU-board!
CF5206e first run
This picture is a photo of the soldered and finished board!
You can read a detailed description of the development process of it here.
Added a picture of me in the about me-section. :)
This picture was made while setting up all the hardware needed for the ColdFire-development...
PPCjpeg V1.21 released
Also updated the QBox pages with new pictures and text. Thanks to Alexander Heinze for his great digital photo camera!
PPCjpeg V1.2 released
PPCjpeg V1.12 released
QBox pages updated
PPCjpeg V1.1 released

This is the print version. Back to normal view