3 files changed, 232 insertions(+), 0 deletions(-)

A .gitignore
A flake.lock
A flake.nix

@@ 0,0 1,20 @@
+.DS_Store
+.idea
+*.log
+tmp/
+
+work/
+out/
+sim/
+.direnv/
+
+__pycache__/
+vunit_out/
+
+synth_1/
+utils_1/
+impl_1/
+
+stopwatch.runs/
+stopwatch.hw/
+stopwatch.cache/

@@ 0,0 1,141 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nix-github-actions": {
+      "inputs": {
+        "nixpkgs": [
+          "poetry2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1698974481,
+        "narHash": "sha256-yPncV9Ohdz1zPZxYHQf47S8S0VrnhV7nNhCawY46hDA=",
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "rev": "4bb5e752616262457bc7ca5882192a564c0472d2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1700856099,
+        "narHash": "sha256-RnEA7iJ36Ay9jI0WwP+/y4zjEhmeN6Cjs9VOFBH7eVQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0bd59c54ef06bc34eca01e37d689f5e46b3fe2f1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "poetry2nix": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nix-github-actions": "nix-github-actions",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "systems": "systems_2",
+        "treefmt-nix": "treefmt-nix"
+      },
+      "locked": {
+        "lastModified": 1700890240,
+        "narHash": "sha256-AKbWnuDzDuXaYSXHXSj0Sa1DSmUm1KaFNJhf2MEhoS0=",
+        "owner": "nix-community",
+        "repo": "poetry2nix",
+        "rev": "674fc0ef18bb62f3aea7684e09f20046a3cdfedf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "poetry2nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "poetry2nix": "poetry2nix"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "id": "systems",
+        "type": "indirect"
+      }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "poetry2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1699786194,
+        "narHash": "sha256-3h3EH1FXQkIeAuzaWB+nK0XK54uSD46pp+dMD3gAcB4=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "e82f32aa7f06bbbd56d7b12186d555223dc399d1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

@@ 0,0 1,71 @@
+{
+  description = "NSV stopwatch";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    poetry2nix = {
+      url = "github:nix-community/poetry2nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, poetry2nix, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs {
+        system = "${system}";
+      };
+      inherit (poetry2nix.lib.mkPoetry2Nix {
+        inherit pkgs;
+      }) mkPoetryPackages defaultPoetryOverrides;
+
+      python-env = pkgs.python311.withPackages(ps: [
+        (ps.buildPythonPackage rec {
+          pname = "vunit-hdl";
+          version = "4.7.0";
+          src = pkgs.fetchFromGitHub {
+            owner = "VUnit";
+            repo = "vunit";
+            rev = "v4.7.0";
+            hash = "sha256-xhCPPnUXUdLg5kElbyJKW0tJOZMUoM1bV2siOsoz3Zs=";
+          };
+
+          doCheck = false;
+
+          nativeBuildInputs = [
+            ps.setuptoolsBuildHook
+            ps.setuptools
+            ps.pythonImportsCheckHook
+
+            pkgs.ghdl # VHDL simulator needed for build/testing
+            ps.pytest
+          ];
+
+          buildInputs = [
+            ps.colorama
+          ];
+        })
+      ]);
+      vhdl-toolchain = pkgs.symlinkJoin {
+        name = "vhdl-toolchain";
+        meta.mainProgram = "nvc";
+        paths = [
+          pkgs.ghdl
+          pkgs.nvc
+        ];
+      };
+    in {
+      packages.${system}.default = vhdl-toolchain;
+
+      devShells.${system}.default = pkgs.mkShell {
+        packages = [
+          vhdl-toolchain
+          pkgs.vhdl-ls
+          pkgs.gtkwave
+          python-env
+        ];
+
+        VUNIT_SIMULATOR = "nvc";
+      };
+    };
+}