initial commit

.gitignore

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+zig-out
+zig-cache

LICENSE

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+Copyright (c) 2022 Zig Embedded Group Contributors
+
+This software is provided 'as-is', without any express or implied warranty. In
+no event will the authors be held liable for any damages arising from the use
+of this software.
+
+Permission is granted to anyone to use this software for any purpose, including
+commercial applications, and to alter it and redistribute it freely, subject to
+the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim
+that you wrote the original software. If you use this software in a product, an
+acknowledgment in the product documentation would be appreciated but is not
+required.
+
+2. Altered source versions must be plainly marked as such, and must not be
+misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source distribution.

README.md

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 # microchip-atsam
+
+HALs and register definitions for Microchip ATSAM devices
+
+## What version of Zig to use
+
+0.11.0

build.zig

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+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    _ = b;
+    //  Dummy func to make package manager happy
+}
+
+fn root() []const u8 {
+    return comptime (std.fs.path.dirname(@src().file) orelse ".");
+}
+
+const build_root = root();
+
+pub const chips = struct {
+    pub const atsamd51j19 = .{
+        .name = "ATSAMD51J19A",
+        .url = "https://www.microchip.com/en-us/product/ATSAMD51J19A",
+        .cpu = .cortex_m4,
+        .register_definition = .{
+            .atdf = .{ .path = build_root ++ "src/chips/ATSAMD51J19A.atdf" },
+        },
+        .memory_regions = &.{
+            .{ .kind = .flash, .offset = 0x00004000, .length = 512 * 1024 }, // Embedded Flash
+            .{ .kind = .ram, .offset = 0x20000000, .length = 192 * 1024 }, // Embedded SRAM
+            .{ .kind = .ram, .offset = 0x47000000, .length = 8 * 1024 }, // Backup SRAM
+            .{ .kind = .flash, .offset = 0x00804000, .length = 512 }, // NVM User Row
+        },
+    };
+};