4KNeural recordingXie–Luan labs · Team design review
LibraryMeetingsQuestions & answers15 October 2026

System overview

4K neural recording

Overview V8A · Custom FPGA approach

System architecture
Loading compact assembly…
ISOMETRIC
Drag to rotate · Scroll to zoom · Select a board
Earlier assembly concept · preserved geometryHistorical XEM8310 shapes · open subsystem tabs for current boards

Architecture & current work

From the headboard to the host.

Selected hardware path

Under development · switch approaches above.
A Custom FPGA approach

ASIC boards → new LDO + custom FPGA → cabled XEM8305 interface → PC

FPGA V41 + separate LDO V5, or combined FPGA / LDO V7. B Parallel alternative · direct-LDO carrier

ASIC boards → existing LDO board → carrier V17 → XEM8305 → PC

The carrier connects directly to the existing LDO board.
Design review · source notes

System overview

Model provenance and presentation scope

The current overview combines native ASIC PCB-5, FPGA V41, LDO V5 or combined V7, and registered BRK8305 / interposer V4 / XEM8305 models. Board shapes retain their source dimensions. The compact electronics and host stack are separate, connected by an illustrative micro-HDMI cable; populated fit and hardware operation remain unqualified.

ASIC die bodies and the unavailable PCB-5 connector body are omitted. See model sources, exact hashes, omissions and transforms. The V5 overview preserves the earlier assembly and September adapter study.

The original 650-triangle STL remains preserved byte for byte in the repository and earlier overviews.

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Latest project updates

Updates

Full board detail · interposer inspection

The host stack now uses full geometry. Select Interposer only to reveal all 52 components, native pads, silkscreen and soldermask, then use Top, Bottom or 3D to inspect it.

Inspect the current boards →

Separate assemblies · micro-HDMI cable

The compact FPGA/LDO electronics sit apart from the BRK8305 / interposer / XEM8305 host stack and connect by a visible micro-HDMI cable. Current part descriptions use board revisions without assigning individual people.

Open the cabled 3D overview →

Current boards together in 3D

Rotate the four ASIC reference boards, FPGA V41 + LDO V5, and current BRK8305 / interposer V4 / XEM8305 stack together. Switch to the combined V7 power option or focus a board group.

Open the current 3D overview →

Two parallel approaches

Choose A or B using the approach switch. Only the selected hardware path, board sections and overview assembly are shown. Previous/Next and keyboard navigation stay within that approach.

Open the selected overview →

Current board previews and files

FPGA V41, separate LDO V5, combined FPGA / shared LDO V7 and direct-LDO carrier V17. Native views, schematics and complete KiCad projects are available in their sections.

FPGA V41LDO V5 / V7Carrier V17
14 October review presentation ↗Project library ↗