Basic build environment for Teensy 4.0 programs

1 files changed, 42 insertions, 0 deletions

diff --git a/core.nix b/core.nix
new file mode 100644
index 0000000..6a98e55
--- /dev/null
+++ b/core.nix
@@ -0,0 +1,42 @@
+{ pkgs, ... }:
+
+pkgs.stdenvNoCC.mkDerivation rec {
+  name = "teensy-core";
+  version = "1.54";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "PaulStoffregen";
+    repo = "cores";
+    rev = "${version}";
+    sha256 = "6IXKPVc06WCjJDOnDFOOqjPZSt4UhRW7LHyblEaZ7fw=";
+  };
+
+  buildInputs = with pkgs; [
+    binutils
+    gcc-arm-embedded
+  ];
+
+  buildPhase = ''
+    export CC=arm-none-eabi-gcc
+    export CXX=arm-none-eabi-g++
+
+    pushd teensy4
+    rm main.cpp
+    cp ${./Makefile.lib} Makefile
+    make
+    ar rvs libteensy-core.a *.o
+    popd
+  '';
+
+  installPhase = ''
+    mkdir -p $out/{include,lib}
+    pushd teensy4
+    cp -r *.h $out/include/
+    cp -r avr $out/include/
+    cp -r debug $out/include/
+    cp -r util $out/include/
+    cp libteensy-core.a $out/lib/
+    cp imxrt1062.ld $out/lib/
+    popd
+  '';
+}