Author Archives: dommas

Meet us at Make Munich, 2.3. – 3.3.2019

Check out our homebrew 65c02 8bit goodness including our brand new video/sound-hardware at the Make Munich fair. We’ll also have BASIC, Forth, a couple of games and candy. Our booth is in Hall 1, Booth Nr. 49, in the “Electronic … Continue reading

Posted in Allgemein

Fixing the white screen problem on a Tekway DST1062B oscilloscope

The Tekway DST 1062B (also known unter the Hantek or Voltcraft brand) is an inexpensive 60MHz digital storage oscilloscope, which is very much hackable and has proven to be worth its weight in gold pressed latinum. More recently, my scope … Continue reading

Posted in Allgemein

V9958+OPL2-Boards are there

The newly made boards made their way from China to Munich. Starting now, the multi board version of the Steckschwein is made up of 3 Boards: CPU/Memory, IO/UART and V9958-OPL2.

Posted in dram, kicad, layout, platinen, RGB, sound, V9958, vdp, video, video chip, ym3812

New V9958-Board with integrated OPL2

It’s time for another hardware upgrade. Since we really want to get our single board Steckschwein done, we are going for higher integration of our multiboard prototype. After integrating the UART to the IO-Board, we integrate the OPL2 sound part … Continue reading

Posted in kicad, layout, opl2, platinen, RGB, SCART, sound, V9958, video, video chip, video signal, ym3812

Save the date: VCFb – 13.10.-14.10.

We are very excited that we will be exhibiting the Steckschwein at the Vintage Computing Festival Berlin . Also, we will be holding a talk about everything Steckschwein on Saturday, the 13.10. at 10:30. The Vintage Computing Festival Berlin will … Continue reading

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WOZMON – a memory monitor in 256 bytes

The woz monitor, also known as WOZMON, is a pretty simple memory monitor and was the system software located in the 256 byte PROM on the Apple I. Wozmon is used to inspect and modify memory contents or to execute … Continue reading

Posted in debugging, experiment, hexdump, software

VCFe diesmal ohne Steckschwein

Zum ersten Mal in der Geschichte des Steckschweins sind wir dieses Jahr nicht als Aussteller auf dem VCFe dabei. Das Kommen lohnt sich aber trotzdem – diesmal findet das VCFe nämlich im Leibniz-Rechenzentrum der Bayerischen Akademie der Wissenschaften in Garching … Continue reading

Posted in Allgemein

Switching to english

There seems to be quite some interest in our little project from outside of germany. Thanks to all who are following what we are doing. To save you the effort of putting our blatherings through Google Translate or even having … Continue reading

Posted in Allgemein

V9958 – Es ist vollbracht

Da ist sie nun, die neuen Videoplatine. Nach einigen Umwegen hat der Packen Boards uns erreicht (die erste Lieferung ist versehentlich in Spanien gelandet, während wir die Platinen des spanischen Bastlers erhalten haben. Inzwischen hat jeder Ersatz erhalten). Wir haben … Continue reading

Posted in 1084S, 9918, FBAS, PAL, RGB, SCART, tms9929, V9958, vdp, video, video chip, video signal | Tagged , , ,

V9958 – Vom Steckbrett zum Prototypen

Es ist soweit, der erste Prototyp auf Platine von unserem neuen V9958-Videoboard ist fertig layoutet, und die Platinen warten beim Fertiger auf ihren Versand. Der Steckbrettaufbau vom letzten Post wurde auf 128k erweitert. Dazu ist einfach eine 2. Bank von … Continue reading

Posted in Allgemein, dram, platinen, schaltplan, V9958, video, video chip, video signal | 2 Comments