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diff --git a/examples/device/midi_test_freertos/src/main.c b/examples/device/midi_test_freertos/src/main.c
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+++ b/examples/device/midi_test_freertos/src/main.c
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+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board_api.h"
+#include "tusb.h"
+
+/* This MIDI example send sequence of note (on/off) repeatedly. To test on PC, you need to install
+ * synth software and midi connection management software. On
+ * - Linux (Ubuntu): install qsynth, qjackctl. Then connect TinyUSB output port to FLUID Synth input port
+ * - Windows: install MIDI-OX
+ * - MacOS: SimpleSynth
+ */
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+#if TUSB_MCU_VENDOR_ESPRESSIF
+  #define USBD_STACK_SIZE     4096
+#else
+  // Increase stack size when debug log is enabled
+  #define USBD_STACK_SIZE    (3*configMINIMAL_STACK_SIZE/2) * (CFG_TUSB_DEBUG ? 2 : 1)
+#endif
+
+#define BLINKY_STACK_SIZE   configMINIMAL_STACK_SIZE
+#define MIDI_STACK_SIZE     configMINIMAL_STACK_SIZE
+
+// static task
+#if configSUPPORT_STATIC_ALLOCATION
+StackType_t blinky_stack[BLINKY_STACK_SIZE];
+StaticTask_t blinky_taskdef;
+
+StackType_t  usb_device_stack[USBD_STACK_SIZE];
+StaticTask_t usb_device_taskdef;
+
+StackType_t  midi_stack[MIDI_STACK_SIZE];
+StaticTask_t midi_taskdef;
+#endif
+
+/* Blink pattern
+ * - 250 ms  : device not mounted
+ * - 1000 ms : device mounted
+ * - 2500 ms : device is suspended
+ */
+enum  {
+  BLINK_NOT_MOUNTED = 250,
+  BLINK_MOUNTED = 1000,
+  BLINK_SUSPENDED = 2500,
+};
+
+static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
+
+void usb_device_task(void *param);
+void led_blinking_task(void* param);
+void midi_task(void* param);
+
+//--------------------------------------------------------------------+
+// Main
+//--------------------------------------------------------------------+
+int main(void) {
+  board_init();
+
+#if configSUPPORT_STATIC_ALLOCATION
+  xTaskCreateStatic(led_blinking_task, "blinky", BLINKY_STACK_SIZE, NULL, 1, blinky_stack, &blinky_taskdef);
+  xTaskCreateStatic(usb_device_task, "usbd", USBD_STACK_SIZE, NULL, configMAX_PRIORITIES-1, usb_device_stack, &usb_device_taskdef);
+  xTaskCreateStatic(midi_task, "midi", MIDI_STACK_SIZE, NULL, configMAX_PRIORITIES - 2, midi_stack, &midi_taskdef);
+#else
+  xTaskCreate(led_blinking_task, "blinky", BLINKY_STACK_SIZE, NULL, 1, NULL);
+  xTaskCreate(usb_device_task, "usbd", USBD_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, NULL);
+  xTaskCreate(midi_task, "midi", MIDI_STACK_SIZE, NULL, configMAX_PRIORITIES - 2, NULL);
+#endif
+
+#if !TUSB_MCU_VENDOR_ESPRESSIF
+  // skip starting scheduler (and return) for ESP32-S2 or ESP32-S3
+  vTaskStartScheduler();
+#endif
+
+  return 0;
+}
+
+#if TUSB_MCU_VENDOR_ESPRESSIF
+void app_main(void) {
+  main();
+}
+#endif
+
+// USB Device Driver task
+// This top level thread process all usb events and invoke callbacks
+void usb_device_task(void *param) {
+  (void) param;
+
+  // init device stack on configured roothub port
+  // This should be called after scheduler/kernel is started.
+  // Otherwise it could cause kernel issue since USB IRQ handler does use RTOS queue API.
+  tusb_rhport_init_t dev_init = {
+    .role = TUSB_ROLE_DEVICE,
+    .speed = TUSB_SPEED_AUTO
+  };
+  tusb_init(BOARD_TUD_RHPORT, &dev_init);
+
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
+  // RTOS forever loop
+  while (1) {
+    // put this thread to waiting state until there is new events
+    tud_task();
+  }
+}
+
+//--------------------------------------------------------------------+
+// Device callbacks
+//--------------------------------------------------------------------+
+
+// Invoked when device is mounted
+void tud_mount_cb(void) {
+  blink_interval_ms = BLINK_MOUNTED;
+}
+
+// Invoked when device is unmounted
+void tud_umount_cb(void) {
+  blink_interval_ms = BLINK_NOT_MOUNTED;
+}
+
+// Invoked when usb bus is suspended
+// remote_wakeup_en : if host allow us  to perform remote wakeup
+// Within 7ms, device must draw an average of current less than 2.5 mA from bus
+void tud_suspend_cb(bool remote_wakeup_en) {
+  (void) remote_wakeup_en;
+  blink_interval_ms = BLINK_SUSPENDED;
+}
+
+// Invoked when usb bus is resumed
+void tud_resume_cb(void) {
+  blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
+}
+
+//--------------------------------------------------------------------+
+// MIDI Task
+//--------------------------------------------------------------------+
+
+// Store example melody as an array of note values
+const uint8_t note_sequence[] = {
+  74,78,81,86,90,93,98,102,57,61,66,69,73,78,81,85,88,92,97,100,97,92,88,85,81,78,
+  74,69,66,62,57,62,66,69,74,78,81,86,90,93,97,102,97,93,90,85,81,78,73,68,64,61,
+  56,61,64,68,74,78,81,86,90,93,98,102
+};
+
+void midi_task(void* param) {
+  (void) param;
+
+  const uint8_t cable_num = 0; // MIDI jack associated with USB endpoint
+  const uint8_t channel   = 0; // 0 for channel 1
+
+  // Variable that holds the current position in the sequence.
+  uint32_t note_pos = 0;
+
+  while (1) {
+    // send note periodically
+    vTaskDelay(286  / portTICK_PERIOD_MS);
+
+    // Previous positions in the note sequence.
+    int previous = (int) (note_pos - 1);
+
+    // If we currently are at position 0, set the
+    // previous position to the last note in the sequence.
+    if (previous < 0) {
+      previous = sizeof(note_sequence) - 1;
+    }
+
+    // Send Note On for current position at full velocity (127) on channel 1.
+    uint8_t note_on[3] = { 0x90 | channel, note_sequence[note_pos], 127 };
+    tud_midi_stream_write(cable_num, note_on, 3);
+
+    // Send Note Off for previous note.
+    uint8_t note_off[3] = { 0x80 | channel, note_sequence[previous], 0};
+    tud_midi_stream_write(cable_num, note_off, 3);
+
+    // Increment position
+    note_pos++;
+
+    // If we are at the end of the sequence, start over.
+    if (note_pos >= sizeof(note_sequence)) {
+      note_pos = 0;
+    }
+
+    // The MIDI interface always creates input and output port/jack descriptors
+    // regardless of these being used or not. Therefore incoming traffic should be read
+    // (possibly just discarded) to avoid the sender blocking in IO
+    while (tud_midi_available()) {
+      uint8_t packet[4];
+      tud_midi_packet_read(packet);
+    }
+  }
+}
+
+//--------------------------------------------------------------------+
+// BLINKING TASK
+//--------------------------------------------------------------------+
+void led_blinking_task(void* param) {
+  (void) param;
+  static uint32_t start_ms = 0;
+  static bool led_state = false;
+
+  while (1) {
+    // Blink every interval ms
+    vTaskDelay(blink_interval_ms / portTICK_PERIOD_MS);
+    start_ms += blink_interval_ms;
+
+    board_led_write(led_state);
+    led_state = 1 - led_state; // toggle
+  }
+}