Something brought up old memories from the days when I’ve been working in Embedded Systems development.

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I’m third from the left…

The “big thing” in the back is a Diesel engine stripped from a big ship. Converted to an internal combustion engine working on natural gas and producing 6 Megawatts of Electrical power. Cooling/heating, turbo, oiling, ignition – those are only few subsystems of this complex.

One more picture:

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My former employer, Romany Gaz Group, done all the electronics + software. It was a blast to work on. A mix of hardware, microprocessors and software, low level hacking and unforgettable feeling of true Research and Development work:

  • writing in assembler for mythical Motorola 68HC11, an 8-bit microprocessor with a whopping 64 Kb of program memory and less than 1 Kb of RAM. Then come the HC12 with more memory and C compiler.
  • in-house Real-Time Operational System with multi-tasking support.
  • “advanced” user interfaces on 20x4 character displays and 5 button keyboards
  • homebrew communication protocol spawning into few levels of OSI model
  • tens of sensors and digital signals
  • tens of output signals, valves, pumps
  • a SCADA-like PC application for monitoring and control

And a fantastic team of talented engineers that tamed the beast. You have to hear it grumble…