Howard FPGA Connected 42x40

FPGA_4K

Shared PCB development for the 4K neural-recording system: working designs, interface decisions, reference boards and acquisition software.

Start working with the team

Team start page · Setup and daily workflow · Owners and open work

Use KiCad 10.0.6 for the FPGA handoff. Clone the repository, open the project from your clone, and keep its custom libraries alongside it. Follow CONTRIBUTING.md before editing; uploading a draft does not approve its circuit or make main fabrication-ready.

Board overview

Overall assembly

The earlier assembly concept shows the four-board ASIC-carrier stack, routing section and FPGA board. Open the 3D model and region guide · Download STL. The original model is preserved; dimensions are provisional and its author is unverified.

Supplied board references

ASIC carrier reference	LDO/routing reference
Approximately 22 × 17 mm; two chip footprints	Approximately 18.3 × 42 mm; regulator area and signal routing

These are renders of the supplied reference boards; unavailable custom 3D models are omitted. Open the visual hardware overview for the system diagram, original assembly photograph, front/back layouts and editable files. The two references do not represent a completed 4K assembly or a verified mating pair.

Files

The files below are included in this repository. Click a filename to open it, or a download link to save it.

For the full folder, use GitHub's Code → Download ZIP or clone the repository. The document library provides a longer index.

Project context

The recorded system path is recording chips → routing board → FPGA board → KR260 → PC. The meeting identifies the FPGA-to-receiver interface, complete signal map, power handoff and startup behavior as open requirements. Dates and uncertainty are retained in the meeting records.

The included FPGA_512 code is an earlier ECP5/FT600 implementation. It provides acquisition RTL, host software and testbenches; it is not a completed 4K Artix-7 implementation.

Working with the files

git clone https://github.com/HowardWHSrun/FPGA_4K.git
cd FPGA_4K
python3 scripts/check_docs.py
python3 scripts/check_hardware.py

The source files come with the clone—no separate source download is needed. The check requires Python 3.9+ and Git, and verifies local links and file hashes. See the software guide for program entry points and the hardware guide for KiCad files.

AI agents should start with AGENTS.md. Source credits, versions and copy details are recorded in provenance.