Lesson 2 Task 1

.gitignore

@@ -4,3 +4,6 @@ build
 # West files
 .west
 deps
+
+# Custom workspace configuration
+.vscode

l2-task1/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.20.0)
+
+set(KCONFIG_ROOT ${CMAKE_CURRENT_LIST_DIR}/Kconfig.projbuild)
+find_package(Zephyr REQUIRED)
+project(my_zephyr_app)
+
+target_sources(app PRIVATE src/main.cpp)

l2-task1/Kconfig.projbuild

@@ -0,0 +1,9 @@
+source "Kconfig.zephyr"
+
+menu "Application options"
+
+  config BLINKY_SLEEP_MS
+    int "Time in ms between LED toggle"
+    default 500
+
+endmenu

l2-task1/prj.conf

@@ -0,0 +1,2 @@
+CONFIG_GPIO=y
+CONFIG_LOG=y

l2-task1/src/main.cpp

@@ -0,0 +1,28 @@
+#include <zephyr/drivers/gpio.h>
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+
+/* The devicetree node identifier for the "led0" alias. */
+#define LED_NODE DT_ALIAS(led0)
+
+static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED_NODE, gpios);
+
+LOG_MODULE_REGISTER(main, LOG_LEVEL_INF);
+
+int main(void)
+{
+    bool led_state = true;
+
+    if (!gpio_is_ready_dt(&led)) return 0;
+
+    if (gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE) < 0) return 0;
+
+    while (1) {
+        if (gpio_pin_toggle_dt(&led) < 0) return 0;
+
+        led_state = !led_state;
+        LOG_INF("LED state: %s", led_state ? "ON" : "OFF");
+        k_msleep(CONFIG_BLINKY_SLEEP_MS);
+    }
+    return 0;
+}