4KNeural recordingXie–Luan labs · Team design review
LibraryMeetingsQuestions & answers14 October 2026

Wednesday review · 14 October: Current FPGA PCB and LDO presentation. Select a subsystem below to preview its latest work.

System overview

4K neural recording

Overview V3Current review · 14 October

System architecture
Loading compact assembly…
ISOMETRIC
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Compact STL · preserved geometryEarlier concept geometry · current board views in the subsystem tabs

Architecture & responsibility

From the headboard to the host.

CURRENT HARDWARE · 14 OCTOBER 2026

Four 1k ASIC boards → power and signal integration → FPGA

Open Wednesday review

The XEM8305 carrier V17 is a separate development path using the existing LDO assembly. The compact path still needs ASIC distribution, stack adapters, supply feasibility and routing work. The overview retains the original conceptual assembly geometry; each subsystem opens its current source-backed views.

Design review · source notes

System overview

Model provenance and presentation scope

The supplied stacked_headboard_compact_B_v1(1).stl is preserved byte for byte. The browser uses all 650 source triangles. Camera animation changes the view, not the model.

The former B bridge region and C lower board are grouped as one routing/LDO subsystem per Howard’s September 22 instruction. The source model is not edited. The overview receiver stack retains earlier explanatory geometry; current FPGA, LDO and carrier views are shown separately in their subsystem tabs. The dated adapter view is historical; the adapter detail view uses derived Opal Kelly XEM8310 and BRK8310 models and labels the proposed interposer separately. Neither view proves mating fit. The R2 direct-carrier option and earlier KR260 concept remain in dated history.

Names are reported workstream assignments from the repository’s September 18 follow-up. They do not replace its separate, still-unassigned layout reservation and reviewer records.

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