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Overview of KiCAD – free electronics design program.

Categories: KiCAD, Software
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Published on: 13/06/2012

KiCAD is a program for electronics design. It includes schematic editor, PCB editor, Gerber files viewer and some utilities. It has a 3D modelling capability as well, but the render quality is lower than of competitors. Nevertheless it is more than enough for visual design check and enclosure allocation. There are Windows and Linux versions[…]

Hackintosh. Part 3. Installation.

Categories: Computers, Hackintosh
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Published on: 05/06/2012

So, all components are bought and it is time to build the computer. The NZXT Hush 2 case that I’ve chosen is quite convenient for building a computer. The cable management space is wide enough, but the rubber garments on the holes to this space fall away easily which is a bit disappointing. The chosen[…]

Hackintosh. Part 2. Hardware.

Categories: Computers, Hackintosh
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Published on: 29/05/2012

Let’s see the components chosen for the Hackintosh from my previous post in details. Motherboard. According to the Internet forums, the Gigabyte GA-Z68X-UD3H-B3 motherboard has the best support for Mac OS. That’s why I decided to build my Hackintosh based on this board. Apart from the standard devicies, the board has USB 3, 1394a and eSATA[…]

Hackintosh. Part 1. Introduction.

Categories: Computers, Hackintosh
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Published on: 16/05/2012

It is time to replace my 2007 iMac. It has been working perfectly for five years and still in a very good condition. But despite of the well optimised Mac OS, 3Gb of RAM, 2.16GHz Intel Core 2 Duo processor and 250Gb HDD, it is far behind modern computers. Modern iMacs haven’t impressed me –[…]

Agat-7. What has been already done.

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Published on: 08/05/2012

In this post I’m going to show what has been done in the project. First of all, an extension board for DE1, that contains a socket for 6502 CPU, was made. I used a toner transfer method to make a PCB. The board connects straight to GPIO0 header on DE1 board: CPU doesn’t require all[…]

Agat-7. Project concept.

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Published on: 11/04/2012

Lets discuss the concept of the replica of Agat-7 computer. This version is not final and can be (and most likely will be) adjusted. As usual, all your ideas are welcome! CPU. A Bulgarian 6502 clone CM630 will be used as CPU in the project. But it can be changed to any other 6502 clone[…]

Agat-7. Introduction.

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Published on: 02/04/2012

After the trial project of the “UT-88′ computer, lets start with a much more serious project. We will design and build another Soviet computer – AGAT-7. In this case the DE1 board will be used only for prototyping – the computer will be built on its own board. So, lets see what this computer was.[…]

UT-88. Using OS CP/M. Part 2/2.

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Published on: 31/03/2012

In this post we will check some programs for CP/M and learn how to load your own programs on “RAM-disk”. External command POWER is intended to work with files in a RAM and the “RAM-disk”. It allows to view files, edit them, rename or erase them, as well as to view and edit data in[…]

UT-88. Using OS CP/M. Part 1/2.

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Published on: 28/03/2012

Finally we reached the most exciting part – we will launch CP/M operation system on “UT-88”. This system was initially developed in 1975 by Gary Kildall of Digital Research, Inc. for Intel 8080 based computers. “UT-88” is based on the Soviet analog of this processor (KR580VM80A), so it was possible to adapt it for this[…]

UT-88. MONITOR-F for full configuration

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Published on: 26/03/2012

In the previous post we learned how to launch the computer in full configuration. Lets see how it works and what commands MONITOR-F has. As you remember, Monitor-F can be launched from address F800H using the command 7 F800. MONITOR-F setups stack pointer, initialise some constants and variables in memory and makes keyboard initialisation. After that[…]

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