8 digit frequency counter using the Papilio One

Papilio user hamster designed a 8 digit frequency counter using his Dx display and he’s looking to get a GPS module to complete the project and make a GPS referenced 100MHz frequency counter.

Here is a video of the frequency counter in action:

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And here is a list of the parts needed to make this project:

[checklist]

• A 3.3V GPS module with a 1PPS output.
•  A Papilio One FPGA board. You can use another board, but this project assumes a 32MHz on-board clock.
• An eight digit seven segment display board from Deal Extreme.
• A few jumper wire.

[/checklist]

Check out hamster’s nice tutorial for an in-depth look at this project and for access to the full source code and we’ve got the original forum thread here if you want to share your thoughts with our community.

follow the break to watch another video comparing the stability of the Nexys2 and Basys2 boards.