she blinks

build.zig

@@ -4,6 +4,7 @@ pub fn build(b: *std.Build) void {
     const optimize = b.standardOptimizeOption(.{
         .preferred_optimize_mode = .ReleaseSmall,
     });
+
     const target = b.resolveTargetQuery(.{
         .cpu_arch = .thumb,
         .cpu_model = .{
@@ -13,26 +14,54 @@ pub fn build(b: *std.Build) void {
         .abi = .eabihf,
     });
 
-    // const mod = b.addModule("zig_stm32g4_test", .{
-    //     .root_source_file = b.path("src/root.zig"),
-    //     .target = target,
-    // });
+    const main_mod = b.addModule("Main", .{
+        .root_source_file = b.path("src/main.zig"),
+        .target = target,
+        .optimize = optimize,
+        .link_libc = false,
+        .strip = false,
+        .single_threaded = true,
+    });
+
+    const mcu_mod = b.addModule("Mcu", .{
+        .root_source_file = b.path("src/microcontroller/mcu.zig"),
+        .target = target,
+        .optimize = optimize,
+        .link_libc = false,
+        .strip = false,
+        .single_threaded = true,
+    });
+
+    const stm32G4_mod = b.addModule("main", .{
+        .root_source_file = b.path("src/microcontroller/stm32g4/startup.zig"),
+        .target = target,
+        .optimize = optimize,
+        .link_libc = false,
+        .strip = false,
+        .single_threaded = true,
+    });
+
+    stm32G4_mod.addImport("Mcu", mcu_mod);
+    mcu_mod.addImport("Stm32g4", stm32G4_mod);
+    main_mod.addImport("Mcu", mcu_mod);
 
     const exe = b.addExecutable(.{
         .name = "zig_stm32g4_test",
-        .root_module = b.createModule(.{
-            .root_source_file = b.path("src/main.zig"),
-            .target = target,
-            .optimize = optimize,
-        }),
+        .linkage = .static,
+        .use_lld = true,
+        .use_llvm = true,
+        .root_module = stm32G4_mod,
     });
+
     exe.dead_strip_dylibs = true;
     exe.link_gc_sections = true;
     exe.link_function_sections = true;
     exe.link_data_sections = true;
-    exe.lto = .full;
+    exe.lto = .none;
     exe.discard_local_symbols = true;
 
+    exe.root_module.addImport("Main", main_mod);
+
     const bin = exe.addObjCopy(.{ .format = .bin });
     const install_exe = b.addInstallArtifact(exe, .{});
     const install_bin = b.addInstallBinFile(bin.getOutput(), bin.basename);
@@ -42,9 +71,24 @@ pub fn build(b: *std.Build) void {
     install_bin.step.dependOn(&install_exe.step);
 
     b.installArtifact(exe);
-    // const run_step = b.step("run", "Run the app");
+    const flash_run = b.addSystemCommand(&.{
+        "openocd",
+        "-f",
+        "/usr/share/openocd/scripts/board/st_nucleo_g4.cfg",
+        "-c",
+        "init",
+        "-c",
+        "reset halt; flash write_image erase zig-out/bin/zig_stm32g4_test.bin 0x08000000 bin",
+        "-c",
+        "flash verify_image zig-out/bin/zig_stm32g4_test.bin 0x08000000 bin",
+        "-c",
+        "reset run; shutdown",
+    });
+    const flash_step = b.step("flash", "Flash the code to the target");
+
+    flash_run.step.dependOn(&install_bin.step);
+    flash_step.dependOn(&flash_run.step);
 
-    // const run_cmd = b.addRunArtifact(exe);
     // run_step.dependOn(&run_cmd.step);
 
     // run_cmd.step.dependOn(b.getInstallStep());