Added Zephyr Project

Zephyr/.gitignore

@@ -0,0 +1,31 @@
+# ========================
+# Build directory
+# ========================
+build/
+**/build/
+
+# ========================
+# CMake
+# ========================
+CMakeCache.txt
+CMakeFiles/
+cmake_install.cmake
+compile_commands.json
+
+# ========================
+# Zephyr / west (optional)
+# ========================
+.west/
+
+# ========================
+# Editor / IDE
+# ========================
+.vscode/
+.idea/
+*.swp
+
+# ========================
+# OS
+# ========================
+.DS_Store
+Thumbs.db

Zephyr/CMakeLists.txt

@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(zephyr_freestanding_hello)
+
+target_sources(app PRIVATE src/main.c)

Zephyr/src/main.c

@@ -0,0 +1,7 @@
+#include <zephyr/kernel.h>
+#include <zephyr/sys/printk.h>
+
+int main(void) {
+  printk("Hello from my freestanding Zephyr app!\n");
+  return 0;
+}