Fx2grok

The fx2grok device is intended to be the tinyiest possible Open Hardware FX2 eval board (that can be used as 8-channel logic analyzer).

The schematics and layout are done from scratch in Kicad, and are released under the CC BY-SA 3.0 license.

Using the open-source fx2lafw firmware (and sigrok, of course) you can use this device as 8-channel logic analyzer.

Goal

• Make the tinyiest-possible FX2 eval board / logic analyzer.
• Optional: Make a tiny "enclosure" using resin (example), with the device (including probes) ideally looking similar to the sigrok logo in the end.

What is NOT the goal?

As you may know, there are tons of FX2-based logic analyzers (and tons of clones) already. There's not much use in creating yet another "standard" device.

The goal of this little hobby project is thus NOT to make a better device, or to make a cheaper device, or anything like that. The only goal is to have it as tiny as possible (it's more of a "just for fun" project).

Hardware

• Double-sided PCB/layout, SMD components soldered on both sides.
• Mini-USB connector.
• FX2 in 56pin QFN package.
• No buffer or other protection, only 100 Ω resistors for each probe.
• No EEPROM, the device will enumerate with the standard Cypress FX2 "unconfigured device" USB VID/PID (04b4:8613).

Download

TODO.

Bill of materials

TODO.

Resources

TODO.