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Posted by: stak
Posted on: 2005-02-04 20:09:53

debugging hardware is weird. i started off with vhdl code that was supposed to control a simple state-based heating system. it didn't work right (despite appearing logically correct), so i started debugging it.. i added a handful of extra output signals (hardware equivalent of printlns) and moved some stuff around. apparently, by doing this, i fixed my original problem and created another one. by the time i removed my extra stuff, the code, which was logically equivalent to the original code, was working fine.

i feel like the opposite of those guys in the escher painting.. they went around a flight of stairs but ended up at the same place. i went through a set of steps that should have led me right back at the same place i started off, yet my problem was fixed.

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