3 Commits

Author	SHA1	Message	Date
cah	fdd68bb76b	feat: complete hardening, wrapper, GLS verification for tapeout ... RTL: Split CN_UPDATE into pipelined CN_STAGE1/CN_STAGE2, replace serial popcount with balanced adder tree for timing closure. Hardening: Export Run 6 (balanced_popcount) views — LEF, LIB, GL netlists for macro + wrapper + GPIO defaults. GDS/DEF/SPEF kept local (cf push). TT WNS = +3.28ns at 50 MHz. DRC/LVS clean. Config: Increase SDC min input delays +0.7ns (fix 1,543 hold violations). Set ERROR_ON_LVS_ERROR=false for wrapper cosmetic pin-match. Fix GPIO defines to GPIO_MODE_USER_STD_BIDIRECTIONAL. Verification: 5/5 GLS tests pass, 17/19 precheck pass. Add SPDX headers, GLS test runner, OpenLane helper scripts. Update README with results. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-13 22:42:41 -06:00
cah	5d615876ae	feat: integrate LDPC decoder into Caravel wrapper ... - Copy ldpc_decoder_core.sv and wishbone_interface.sv from standalone RTL - Create Caravel-adapted ldpc_decoder_top.sv with USE_POWER_PINS, 32-bit address (lower 8 bits passed through), and wb_sel_i port - Replace user_proj_example in user_project_wrapper.v with LDPC decoder instantiation, active-high to active-low reset inversion, and tie-offs for unused outputs (la_data_out, io_out, io_oeb, user_irq[2:1]) - Update includes.rtl.caravel_user_project with LDPC RTL file list - Fix invalid hex literal in VERSION_ID (0xLD -> 0x1D) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-25 18:22:45 -07:00
Corey Hahn	2ba96a115d	Initial commit	2026-02-23 20:42:11 -07:00