FPGA-Neural

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micheleandClaude Sonnet 5 0589620b58 exp: real P&R of the N=2 multi-core system, first genuine system Fmax (EXP-0067)

New hardware/v3/rtl/n2_system_top.v: synthesis wrapper around the
EXP-0066-verified system (neural_director_packed.v + arbiter + real
SDRAM controller + 2 real packed_slot.v instances).

Real Vivado post-route: 16/240 DSP48E1, WNS -2.570ns @ 200MHz ->
Fmax ~132.1MHz -- only -2.1% vs the isolated single core (134.9MHz,
EXP-0059). Unlike V2/ECP5 (where the real full-system Fmax was
measurably lower than the isolated-core number), this Director+
arbiter architecture shows no comparable penalty at N=2, real
confirmation (not projection) that the earlier ~55-85x-over-ESP32-S3
estimate's key assumption holds at this scale.

Full writeup in hardware/v2/logs/experiments.log EXP-0067.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MUG92aM9m68TRc4rG55BcC

2026-09-17 00:21:01 +02:00

constraints

docs+synth: Phase 0 baseline (N_SLOTS=4, real board top), fix stale LPF freq

2026-09-15 20:28:16 +00:00

ddr3

exp: N=16 timing closure fixed (EXP-0056), weight-reuse gives real 7.16x memory speedup without DDR3 (EXP-0057)

2026-09-16 12:01:11 +02:00

docs

docs: extract V2 datasheet into submodule

2026-09-16 23:03:43 +02:00

logs

exp: real P&R of the N=2 multi-core system, first genuine system Fmax (EXP-0067)