svo

Pétocontrôle: a MIDI control surface

Fri, 29 Nov 2024 15:18:47 +0000

MIDI control surface with hall effect knobs and cool LED lights

IVEE: FORTH-based RPN calculator with Arduino by deetee/zooxo

Tue, 30 Jan 2024 21:52:00 +0000

IVEE RPN Calculator

1K-bbstro for Vector-06c

Wed, 12 Dec 2018 02:20:52 +0300

1K bbstro for Vector-06C

Le Pétomane is a hybrid digital-analog polyphonic (6-voice) synthesizer.

Wed, 1 Dec 2021 01:57:01 +0300

Le Pétomane is a hybrid digital-analog polyphonic (6-voice) synthesizer. The main tones are produced using 2x 82c54 PIT chips that generate base frequencies used to create sawtooth, triangle, and PWM waves. Each tone is passed through its individual Polivoks filter. Channels are attenuated, mixed together and passed through an adjustable BBD delay line.

New version of Pretty 8080 Assembler

Wed, 12 Dec 2018 01:58:41 +0300

The new Pretty 8080 Assembler integrates the main editor view and assembler listing

В новой версии Прекрасного ассемблера редактор и листинг интегрированы в одно целое

En la nueva versión del Ensamblador bonito el listing y el editor están integrados

Dans la version nouvelle du l'assembleur jolie le listing et l'editor sont la même chose

Рива Рейд a game released for Вектор-06ц home computer

Thu, 28 Dec 2017 02:46:57 +0300

A River Raid remake released for Vector-06C

Релиз римейка Рива Рейда для Вектора-06ц

Un remake de Incursion del rio para un ordenador antiguo Vector-06C

Un remake du River Raid pour l'ordinateur ancien Vector-06C

Flexible LED filaments driver

Fri, 11 Sep 2015 00:27:21 +0300

A driver for flexible white LEDs

Драйвер гибких белых светодиодов

Driver para los LED blancos flexibles

Non-standard RGB video conditioner

Sun, 06 Sep 2015 04:51:49 +0300

Analog RGB + Sync input using LVDS inputs of FPGA and signal conditioner for nonstandard signals.

Аналоговый вход для RGB + Sync с использованием LVDS-входов ПЛИС и подгонка нестандартных видеосигналов к стандартным.

Entrada de video RGB analógica utilizando entradas LVDS de FPGA y mejoras de video no estandar.

Больше бит с VGA-разъема Altera DE1

Wed, 06 Aug 2014 02:20:29 +0400

Увеличение аналогового разрешения композитного видеовыхода на плате Altera DE1.

Increasing analog resolution of VGA-connector based CVBS output on Altera DE1.

Aumentando resolución analógica de la salida de video compuesto de Altera DE1.

Moved temporarily

Sun, 31 Mar 2013 19:56:23 +0400

My stuff is temporarily accessible at https://asdasd.rpg.fi/~svo.

Zloshnik: a vector CRT display based on 3ЛО1И

Mon, 05 Nov 2012 15:12:33 +0300

Злошник — компактный векторный дисплей на основе миниатюрной ЭЛТ 3ЛО1И.

Zloshnik es un monitor de fósforo de miniatura hecho con un tubo de rayos catódicos soviético tipo 3ЛО1И.

Zloshnik is a very compact vector CRT display built around 3LO1I, a miniature Soviet-made CRT.

In the footsteps of the old intro

Sat, 15 Sep 2012 16:24:03 +0400

FFFUUU-

Automatic morse key for CW practice

Sat, 26 May 2012 22:33:27 +0400

A single-paddle automatic and manual key for morse code (CW) sending practice. It is built from HDD parts and uses a TI Launchpad MSP430 microcontroller for keying and making sounds.

USB video grabber for BK-0010

Wed, 22 Feb 2012 18:12:07 +0300

A simple project based on ChipKIT MAX32 board. It captures video frames from BK-0010 in real time and displays them on the PC (Linux and Mac) in real time. No modifications of BK-0010 are required.
The description is Russian-only but it's pretty easy to understand the project by looking at the source code.

It's alive!

Thu, 19 Aug 2010 16:46:25 +0400

Youtube video: Link
Delta robot project page: Link

BK-0010 FPGA Replica — БК-в-ФПГА

Thu, 10 Jun 2010 03:22:37 +0400

БК-0010 теперь можно запустить на плате Altera DE1. Весь код открыт, содержит изрядное количество Верилога, собственную реализацию микропроцессора, немного древнего Си и ассемблера PDP-11.

Проект хостится на Google Code: https://code.google.com/p/bk0010/.

Elektronika BK-0010 was a 16-bit PDP-11-instruction-set-compatible Soviet home computer manufactured in USSR from 1985 till early 1990-s. Despite its quirks it was immensely popular in its time. Now it is reimplemented in FPGA and can be played with on an Altera DE1 board. The project is entirely open-source, contains a fair share of Verilog (custom PDP-11 instruction set CPU included), some oldskool C and PDP-11 assembly.

Link — https://code.google.com/p/bk0010/.

Packshotnik creates 360-degree stop motion spinshots

Fri, 09 Apr 2010 22:26:42 +0400

Packshotnik creates stop-motion animated 360-degree spin shots of various objects. It consists of a rotary platform and a controller and requires a camera that can be controlled via IR or by wire.

Watch the video in the article or on youtube — Link

Packshotnik description Link

Delta Robot Analysis and Simulation

Thu, 25 Mar 2010 02:45:44 +0300

Analysis, analytical inverse kinematics solution of a delta robot, accompanied with a beautiful delta robot simulation that allows to play with a robot and lets you modify all imaginable parameters.

Delta Robot analysis and simulation - Link

Strobeshnik

Sun, 07 Mar 2010 01:26:41 +0300

Strobeshnik is a stroboscopic digital clock made from an old HDD.

Strobeshnik project writeup

A Nixie Clock in A

Thu, 18 Feb 2010 16:31:17 +0300

The incredibly compact IN-14 based nixie clock in a Marine Band harmonica case. It shares the same code as my previous clock, Satashnik. The circuit is mostly the same, except that it's changed for IN-14's and made to fit in the tight space of harmonica case.

Eagle stuff is here.
Source code: Harmoshnik updates follow the Satashnik tag. This time I've had a chip that needed some serious calibration for its RC oscillator, the code update is mostly about that.

Satashnik

Wed, 27 Jan 2010 01:23:20 +0300

The IN-2 Nixie Clock is complete. This is a very compact clock, too.

Project writeup

What's cooking...

Mon, 18 Jan 2010 05:11:16 +0300

New, multiplexed design with only one ИД1 and unique tunnel-vision ИН-2's.

And BTW, IN-2 footprint was updated in the library. If you started a design already, update it before it's too late.

Link: [lbr] (click View Raw File to download the lbr)

Eagle CAD library with Russian Nixies

Wed, 16 Dec 2009 04:59:10 +0300

A library with Russian nixie tubes. This .lbr includes: IN-2, IN-8-2, IN-14, IN-17. Only IN-8-2 is verified by a working design so far.

Библиотека с индикаторами ИН-2, ИН-8-2, ИН-14, ИН-17. Пока только ИН-8-2 были проверены работающей схемой.

Link: [lbr] (click View Raw File to download the lbr)

Никсиклок «Паташник»

Fri, 11 Dec 2009 18:34:40 +0300

Часы на газоразрядных индикаторах ИН-8-2 «Паташник» с высокоточными часами реального времени DS3234.

"Patashnik" is a nixie clock with DS3234 RTC.

Patashnik

[M]ouse connects a PS/2 mouse to Commodore 64

Sat, 14 Nov 2009 03:01:15 +0300

This adapter lets you plug a PS/2 mouse in a C64 and use it with mousing graphics editors or GEOS. It emulates both propoprtional (analog) and joystick modes of Commodore 1351 mouse. Full schematic and source code available.

[M]ouse: project description and downloads

Hacking with Style: TrueType VT220 Font

Wed, 14 Oct 2009 03:50:28 +0400

I spent some time looking around the net to find a font that mimics DEC VT220 terminal glyph appearance. There is none. There are some old bitmapped fonts from X11 and probably early MacOS distributions that claim to be DEC fonts, they are functional but their visual quality is lacking and nostalgic value is absent. What I wanted is a font that fills my virtual terminal window with the magic hacking glow...

Font and making How-To

Фонт и краткое описание технологии

Цветной композитный PAL-выход для Altera DE1

Tue, 29 Sep 2009 02:21:25 +0400

Накладки во время cc'09 сподвигли меня на реализацию кодера композитного видеосигнала для vector06cc. Небольшая заметка о том, как это было сделано. Без особых подробностей, скорее не руководство, а чтобы самому не забыть. Но вдруг кому пригодится:
ПАЛ-кодер на Altera DE1

Problems with nonstandard VGA output on my Vector-06C FPGA replica made me implement composite PAL output. DE1 board has enough resources to throw in full-colour PAL signal without any additional components. R,G,B wires of VGA output are connected together to cope with 75 ohm load, the rest is done in verilog. This short writeup is Russian-only because there seems to be enough PAL-related info readily available in English. All source code is available in the main vector06cc source tree.

T80 Core To Be The Most Precise 8080 To Date

Thu, 24 Sep 2009 01:21:02 +0400

8080 Emulation Quality

8080 has many dark corners. Unlike its more popular successor Z80, 8080 had never been studied enough and most emulator code, and FPGA cores, relied on data from various books and often even word of mouth. Thusly, it's known that DAA instruction doesn't yield correct result after subtration but it's not known why and AC flag has mysterious ways too..
Just recently a few enthusiastic people from a Russian Vector-06c fans forum found a piece of software for Vector-06c which could not be started in any of the existing emulators, couldn't be started in my FPGA replica yet had no problem running in the real Vector-06c at all. After some investigation it turned out that 8080 ALU had AC flag inverted after SUB operation. This involves SUB, SBB, SBI, DCR, CMP, CPI instructions. The pesky ware used the contents of 8080 flags register as a branch address. Ultimately it led to this discovery of auxilliary carry anomaly.

While fixing this issue in the T80 core, which I use in my Vector-06C replica, I discovered a lot of other discrepancies with the original CPU. Thanks to the ultimately inquisitive CPU test written by Ian Bartholomew, 8080 Exerciser, I was able to verify my version of T80 against the baseline set by the real CPU in a real computer.

Probably not an earth-shattering news, but this is a milestone in emulation of 8080 CPU nevertheless. As of now, there are no known tests that could tell my version of T80 in 8080 mode from the real thing. Update your emulators or you're going to lose the edge :) Only my version has these changes at the moment, they had not been merged with the "official" opencores.org version.

One thing worth noting: real CPU tests were done on a KR580VM80A, which is known to be a gate-level clone of 8080, but still not exactly the real thing. If you have a real 8080 CPU computer which can run CP/M 2.2 or similar, please try Ian's test on your computer and send the results to him or to me.

Motöri the Plotter Video

Tue, 01 Sep 2009 18:37:09 +0400

Chaos Constructions 2k9 is over. It was the most awesome party ever. I had several exhibits, the primary one was of course the Motöri and the crowd totally loved it.

Since it's not a very reliable contraption, I prepared a video to show in case I won't be able to run the plotter live. Everything went smoothly and it wasn't necessary, but the video is pretty nice and it shows the plotter from every possible angle and lets you hear its lovely sounds. Enjoy!