l2-task1

app/Kconfig

@@ -0,0 +1,14 @@
+menu "Led Subsystem"
+
+config APP_HEARTBEAT_PERIOD_MS 
+  int "Configure Hearteab Period (ms)"
+  range 500 1000
+  default 500
+
+endmenu
+
+menu "Zephyr"
+
+source "Kconfig.zephyr"
+
+endmenu

app/app.overlay

@@ -0,0 +1,39 @@
+#include <zephyr/dt-bindings/pinctrl/esp32s3-pinctrl.h>
+#include <zephyr/dt-bindings/gpio/gpio.h>
+#include <dt-bindings/led/led.h>
+
+/ {
+
+    aliases {
+        app-led = &led_strip;
+    };
+};
+
+&pinctrl {
+    spim2_ws2812: spim2_ws2812 {
+        group1 {
+            pinmux = <SPIM2_MOSI_GPIO48>;
+            output-high;
+        };
+    };
+};
+
+&spi2 {
+    line-idle-low;
+    status = "okay";
+    pinctrl-0 = <&spim2_ws2812>;
+    pinctrl-names = "default";
+
+    led_strip: ws2812@0 {
+        compatible = "worldsemi,ws2812-spi";
+        reg = <0>;
+        spi-max-frequency = <6400000>;
+        chain-length = <1>;
+        color-mapping = <LED_COLOR_ID_GREEN
+                        LED_COLOR_ID_RED
+                        LED_COLOR_ID_BLUE>;
+        spi-one-frame = <0xf0>;
+        spi-zero-frame = <0xc0>;
+        reset-delay = <50>;
+    };
+};

app/prj.conf

@@ -1,2 +1,6 @@
 CONFIG_GPIO=y
 CONFIG_LOG=y
+CONFIG_APP_HEARTBEAT_PERIOD_MS=500
+CONFIG_SPI=y
+CONFIG_LED_STRIP=y
+CONFIG_WS2812_STRIP_SPI=y

app/src/main.cpp

@@ -1,30 +1,33 @@
 #include <zephyr/drivers/gpio.h>
 #include <zephyr/kernel.h>
 #include <zephyr/logging/log.h>
-
-#define SLEEP_TIME_MS 1000
+#include <zephyr/drivers/led_strip.h>
+#include <zephyr/device.h>
 
 /* The devicetree node identifier for the "led0" alias. */
-#define LED_NODE DT_ALIAS(led0)
+#define LED_NODE DT_ALIAS(app_led)
+
+static const struct device *strip = DEVICE_DT_GET(LED_NODE);
+
+struct led_rgb red[] = { {.r = 255, .g = 0, .b = 0} };  /* red */
+struct led_rgb blue[] = { {.r = 0, .g = 0, .b = 255} };  /* red */
 
-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;
+
+        if (led_strip_update_rgb(strip, led_state ? red : blue, ARRAY_SIZE(red)) < 0) {
+            return 0;
+        };
         LOG_INF("LED state: %s", led_state ? "ON" : "OFF");
-        k_msleep(SLEEP_TIME_MS);
+        k_msleep(CONFIG_APP_HEARTBEAT_PERIOD_MS);
     }
     return 0;
 }

app/tools/build.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/bash
+SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &> /dev/null && pwd)
+
+pushd $SCRIPT_DIR/..
+west build -p always -b esp32s3_devkitc/esp32s3/procpu
+popd

west.yml

@@ -4,11 +4,9 @@ manifest:
   projects:
     - name: zephyr
       url: https://github.com/zephyrproject-rtos/zephyr
-      revision: v4.3.0
+      revision: v4.4.0-rc2
       import:
         name-allowlist:
           - cmsis_6
-          - hal_nxp
-          - hal_stm32
-          - hal_nordic
+          - hal_espressif
         path-prefix: deps