{"adoption": {"forks": 992, "observed_at": "2026-08-28T04:08:46.564816+00:00", "stars": 4362}, "canonical_url": "https://ross.abutalabs.com/products/picorv32", "card": {"archived": false, "artifact_type": "library", "description": "PicoRV32 - A Size-Optimized RISC-V CPU", "domain": ["hardware", "embedded-systems"], "enriched": true, "function": ["embedded", "simulation"], "health_score": 77, "homepage": null, "language": "Verilog", "license": "ISC", "license_family": "permissive", "maturity": "stable", "member_repos": ["YosysHQ/picorv32"], "name": "YosysHQ/picorv32", "platform": [], "pushed_at": "2026-07-31T05:59:04+00:00", "repo": "YosysHQ/picorv32", "stars": 4362, "tags": ["risc-v", "cpu-core", "fpga", "asic", "verilog", "soft-cpu"], "topics": [], "urls": [], "use_cases": ["add a small auxiliary CPU to an FPGA design", "embed a RISC-V core in an ASIC", "implement a soft CPU with minimal LUT usage", "run bare-metal RISC-V firmware on an FPGA", "integrate a processor without crossing clock domains", "build a custom RV32E embedded controller"], "what_it_is": "PicoRV32 is a size-optimized RISC-V RV32IMC CPU core written in Verilog, configurable as RV32E/I/IC/IM/IMC with optional interrupt controller and co-processor interface. It is designed as an auxiliary processor for FPGA designs and ASICs, occupying only 750-2000 LUTs on Xilinx 7-series FPGAs with high maximum clock frequencies.", "when_to_avoid": ["you need a high-performance application-class processor with caches and MMU", "you want a fully verified, formally certified CPU for safety-critical products", "you need out-of-order execution or Linux-capable features"], "when_to_choose": ["you need a very small, configurable RISC-V soft core for FPGA or ASIC", "high fmax and easy timing closure matter more than top performance", "you want a permissively licensed (ISC) CPU core you can extend via the co-processor interface"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/picorv32", "repo": "YosysHQ/picorv32", "role": "main", "score": 66}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:08:46.564816+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:21:26.301738+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "78e0b8ee9b4eb6d3eb2afcf7cc87790f8a8c959e1162dc0750d1d896117768ec", "fetched_at": "2026-08-28T04:08:46.564816+00:00", "kind": "readme", "missing": false, "url": "https://github.com/YosysHQ/picorv32"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 95, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4106, "days_push": 33, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 66, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}