News & Articles

Pyro POV Contest
Build your own POV device using an FPGA or CPLD. Make it spin, make it handheld, make it any way you like! Visit the Contest Page for details on how to enter and win!
1st Place
2nd Place
3rd Place



Build Like A Pyro!
Find many of the parts used on this site at our favorite online electronics shop
Take Me To The Gadgetory!

MCM Electronics Daily Deal and Bulk Bargain

CPLD Proto’s – Binary to 7-segment

Posted March 24, 2012 by Chris

“This project was an excuse to learn about Verilog and programmable parts (cpld, fpga). I chose this project because someone asked about it on Usenet, and the generic response was “use a ROM” – but to get a ROM wide enough would have been expensive, and wasteful – most ROMs these days have many inputs and 8 outputs, we want one with few inputs and many outputs – 8 (or more) in and 21 out. I suggested a $1 CPLD instead (turns out you need a $2 CPLD), then decided to actually make one to see if it would work.”

Leave a Reply