To implement an easily solderable kit I went with an older CPLD part that also has 3.3v and 5v versions that will maintain its programming regardless of power. Duh.īut let me back up and show more about what I’m doing, I wanted to make a programmable piece of logic that could be built as a kit one could easily solder at home, could be programmed in-circuit, and could work at 3.3 or 5 volts. It seems that the plugin space available on a solderless breadboard is 1.1”, I had made the footprint 1” wide leaving no room for a row of wires on both sides. I created a CPLD module with the intent of being able to plug it into lots of things including solderless breadboards, but I screwed up. What better way to learn than to get your hands on a CPLD and give it a try? This might be replacing an obsolete chip, or maybe just a way to learn and try different techniques. As its name implies, you can program these chips to serve the logic functions you need. A Complex Programmable Logic Device (CPLD) is a great piece of hardware to have in your repertoire.
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