Schematics
FPGA
FPGA Daisy Chain JTAG
FTDI
USB2 FT2232
ftdi-asynchronous-fifo-usb-communication-with-fpga
USB3 FT60X Schematics
Lattice
ICEStick 1K
ICEStick 1K IO and Platform Define for Litex icestick1Kio.md
CrossLink-NX USB3
USB3 Support CrossLinkU-NX
Efinix
T20 Kit
PICO + ICE40
pico-ice RP2040 plus Lattice iCE40UP5K FPGA
https://github.com/tinyvision-ai-inc/pico-ice-sdk/
PICO Wave Gen
Open Ephys
ONIX Schematics
Open Ephys FMC-Host fmc-host_schematic.pdf
Open Ephys Breakout Board breakout_schematic.pdf