It is perfect to have fast way to produce PCB. For those of us, who have CNC milling machine available, is to mill the “printed” circuits one solution. It requires to have suitable milling machine with sufficient accuracy, working tool (HPTec V-groove cutter type 802.9 seems to be ideal for me, it is possible to buy it at http://www.cncshop.cz/drazkovaci-freza-30-600-v-profil-typ-802-9 ) and of course the software, which can convert PCB design to G-code for CNC milling machine. As far as I know, one of the most widely used PCB design software especially among the enthusiasts is Eagle from http://www.cadsoftusa.com/ . One of its feature is create the user language program (ULP), which can be used for many purposes and one of them is to generate G-code.

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In the past, I needed to read content of EEPROM, which was signed 25160. All of programmers for me available, even declared as compatible with 25160 chip, were unable correctly read this device, so I did my own one. Because it was in time of windows ME, nowadays the function of utility could be complicated due to issues with LPT driving, but there are many possibilities for old software to communicate with LPT port in newer operating systems. Scheme of connection to EEPROM is at following picture:

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Once upon a time I lose data on my HDD. It was the situation, when I had formatted harddisc and missed letter of drive. Reason was very stupid. I didn’t reset computer after fdisc action. What’s a pitty. Because I try to save my data periodically, not too much new information stayed unsaved, but one of them was assembler code of actual design (it was MIDI controller, which I’m going to publicate soon).

In past, there wasn’t available MPASM, as complex tool with dissasembling feature and therefore I got the idea to programm disassembler. (more…)

During producing of printed circuit boards, I met need of my PCB manufacturer to supply it with drilling files. These files should be in metric units with fixed length and must not have supressed zeros (both, leeding and trailing).

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In course of time, media content archiving need has been arising. Therefore, I produced software, which allows extract structure of files (files and their paths) from media (HDD, DVD, CD, …) to semicolons separated text file.

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