Saturday, August 22, 2009

Neat logic synthesis freeware

I was trying to minimize a boolean circuit for a project I'm working on, and I found a really nice program called Simple Solver:

You type in a truth table, and it spits out a boolean equation and/or circuit that generates the correct output. You can constrain the part types, which of course is very useful if you're using discrete parts (e.g., 74HC gates).

For the problem I gave it, Simple Solver found a solution using 4 NAND gates, which exactly fits in a single 74HC00. Sweet.

Simple Solver can also generate circuits using flip-flops based on user-specified timing diagrams, which is a feature I'm planning to investigate at some point.

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