Merge branch 'master' into test-mode-support

51 files changed, 315 insertions, 225 deletions

diff --git a/examples/device/audio_4_channel_mic/CMakeLists.txt b/examples/device/audio_4_channel_mic/CMakeLists.txt
index f61e1b640..0f5d36193 100644
--- a/examples/device/audio_4_channel_mic/CMakeLists.txt
+++ b/examples/device/audio_4_channel_mic/CMakeLists.txt
@@ -28,6 +28,11 @@ target_include_directories(${PROJECT} PUBLIC
   ${CMAKE_CURRENT_SOURCE_DIR}/src
   )
 
+# Add libm for GCC
+if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+  target_link_libraries(${PROJECT} PUBLIC m)
+endif()
+
 # Configure compilation flags and libraries for the example without RTOS.
 # See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
 family_configure_device_example(${PROJECT} noos)
diff --git a/examples/device/audio_4_channel_mic/Makefile b/examples/device/audio_4_channel_mic/Makefile
index 2a3d854fb..2c825bbf7 100644
--- a/examples/device/audio_4_channel_mic/Makefile
+++ b/examples/device/audio_4_channel_mic/Makefile
@@ -1,11 +1,14 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
   $(TOP)/hw \
 
 # Example source
-EXAMPLE_SOURCE += $(wildcard src/*.c)
+EXAMPLE_SOURCE += \
+  src/main.c \
+  src/usb_descriptors.c \
+
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/audio_4_channel_mic/skip.txt b/examples/device/audio_4_channel_mic/skip.txt
index 1ee86a485..157605df1 100644
--- a/examples/device/audio_4_channel_mic/skip.txt
+++ b/examples/device/audio_4_channel_mic/skip.txt
@@ -1,3 +1,5 @@
 mcu:SAMD11
 mcu:SAME5X
 mcu:SAMG
+family:broadcom_64bit
+family:espressif
diff --git a/examples/device/audio_4_channel_mic/src/main.c b/examples/device/audio_4_channel_mic/src/main.c
index 94ac86d84..1de4f9dac 100644
--- a/examples/device/audio_4_channel_mic/src/main.c
+++ b/examples/device/audio_4_channel_mic/src/main.c
@@ -34,17 +34,16 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <math.h>
 
 #include "bsp/board_api.h"
 #include "tusb.h"
+#include "tusb_config.h"
 
 //--------------------------------------------------------------------+
 // MACRO CONSTANT TYPEDEF PROTYPES
 //--------------------------------------------------------------------+
-
-#ifndef AUDIO_SAMPLE_RATE
-#define AUDIO_SAMPLE_RATE   48000
-#endif
+#define AUDIO_SAMPLE_RATE   CFG_TUD_AUDIO_FUNC_1_SAMPLE_RATE
 
 /* Blink pattern
  * - 250 ms  : device not mounted
@@ -70,8 +69,13 @@ uint8_t clkValid;
 audio_control_range_2_n_t(1) volumeRng[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX+1]; 			// Volume range state
 audio_control_range_4_n_t(1) sampleFreqRng; 						// Sample frequency range state
 
-// Audio test data
-uint16_t i2s_dummy_buffer[CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO][CFG_TUD_AUDIO_FUNC_1_TX_SUPP_SW_FIFO_SZ/2];   // Ensure half word aligned
+#if CFG_TUD_AUDIO_ENABLE_ENCODING
+// Audio test data, each buffer contains 2 channels, buffer[0] for CH0-1, buffer[1] for CH1-2
+uint16_t i2s_dummy_buffer[CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO][CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX*CFG_TUD_AUDIO_FUNC_1_SAMPLE_RATE/1000/CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO];
+#else
+// Audio test data, 4 channels muxed together, buffer[0] for CH0, buffer[1] for CH1, buffer[2] for CH2, buffer[3] for CH3
+uint16_t i2s_dummy_buffer[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX*CFG_TUD_AUDIO_FUNC_1_SAMPLE_RATE/1000];
+#endif
 
 void led_blinking_task(void);
 void audio_task(void);
@@ -97,6 +101,45 @@ int main(void)
   sampleFreqRng.subrange[0].bMax = AUDIO_SAMPLE_RATE;
   sampleFreqRng.subrange[0].bRes = 0;
 
+  // Generate dummy data
+#if CFG_TUD_AUDIO_ENABLE_ENCODING
+  uint16_t * p_buff = i2s_dummy_buffer[0];
+  uint16_t dataVal = 1;
+  for (uint16_t cnt = 0; cnt < AUDIO_SAMPLE_RATE/1000; cnt++)
+  {
+    // CH0 saw wave
+    *p_buff++ = dataVal;
+    // CH1 inverted saw wave
+    *p_buff++ = 60 + AUDIO_SAMPLE_RATE/1000 - dataVal;
+    dataVal++;
+  }
+  p_buff = i2s_dummy_buffer[1];
+  for (uint16_t cnt = 0; cnt < AUDIO_SAMPLE_RATE/1000; cnt++)
+  {
+    // CH3 square wave
+    *p_buff++ = cnt < (AUDIO_SAMPLE_RATE/1000/2) ? 120:170;
+    // CH4 sinus wave
+    float t = 2*3.1415f * cnt / (AUDIO_SAMPLE_RATE/1000);
+    *p_buff++ = (uint16_t)(sinf(t) * 25) + 200;
+  }
+#else
+  uint16_t * p_buff = i2s_dummy_buffer;
+  uint16_t dataVal = 1;
+  for (uint16_t cnt = 0; cnt < AUDIO_SAMPLE_RATE/1000; cnt++)
+  {
+    // CH0 saw wave
+    *p_buff++ = dataVal;
+    // CH1 inverted saw wave
+    *p_buff++ = 60 + AUDIO_SAMPLE_RATE/1000 - dataVal;
+    dataVal++;
+    // CH3 square wave
+    *p_buff++ = cnt < (AUDIO_SAMPLE_RATE/1000/2) ? 120:170;
+    // CH4 sinus wave
+    float t = 2*3.1415f * cnt / (AUDIO_SAMPLE_RATE/1000);
+    *p_buff++ = (uint16_t)(sinf(t) * 25) + 200;
+  }
+#endif
+
   while (1)
   {
     tud_task(); // tinyusb device task
@@ -142,8 +185,21 @@ void tud_resume_cb(void)
 
 void audio_task(void)
 {
-  // Yet to be filled - e.g. put meas data into TX FIFOs etc.
-  // asm("nop");
+  // Yet to be filled - e.g. read audio from I2S buffer.
+  // Here we simulate a I2S receive callback every 1ms.
+  static uint32_t start_ms = 0;
+  uint32_t curr_ms = board_millis();
+  if ( start_ms == curr_ms ) return; // not enough time
+  start_ms = curr_ms;
+#if CFG_TUD_AUDIO_ENABLE_ENCODING
+  // Write I2S buffer into FIFO
+  for (uint8_t cnt=0; cnt < 2; cnt++)
+  {
+    tud_audio_write_support_ff(cnt, i2s_dummy_buffer[cnt], AUDIO_SAMPLE_RATE/1000 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_CHANNEL_PER_FIFO_TX);
+  }
+#else
+  tud_audio_write(i2s_dummy_buffer, AUDIO_SAMPLE_RATE/1000 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX);
+#endif
 }
 
 //--------------------------------------------------------------------+
@@ -364,7 +420,8 @@ bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const *
         {
           case AUDIO_CS_REQ_CUR:
             TU_LOG2("    Get Sample Freq.\r\n");
-            return tud_control_xfer(rhport, p_request, &sampFreq, sizeof(sampFreq));
+            // Buffered control transfer is needed for IN flow control to work
+            return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &sampFreq, sizeof(sampFreq));
 
           case AUDIO_CS_REQ_RANGE:
             TU_LOG2("    Get Sample Freq. range\r\n");
@@ -400,10 +457,14 @@ bool tud_audio_tx_done_pre_load_cb(uint8_t rhport, uint8_t itf, uint8_t ep_in, u
   (void) ep_in;
   (void) cur_alt_setting;
 
-  for (uint8_t cnt=0; cnt < CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO; cnt++)
-  {
-    tud_audio_write_support_ff(cnt, i2s_dummy_buffer[cnt], AUDIO_SAMPLE_RATE/1000 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_CHANNEL_PER_FIFO_TX);
-  }
+
+  // In read world application data flow is driven by I2S clock,
+  // both tud_audio_tx_done_pre_load_cb() & tud_audio_tx_done_post_load_cb() are hardly used.
+  // For example in your I2S receive callback:
+  // void I2S_Rx_Callback(int channel, const void* data, uint16_t samples)
+  // {
+  //    tud_audio_write_support_ff(channel, data, samples * N_BYTES_PER_SAMPLE * N_CHANNEL_PER_FIFO);
+  // }
 
   return true;
 }
@@ -416,22 +477,6 @@ bool tud_audio_tx_done_post_load_cb(uint8_t rhport, uint16_t n_bytes_copied, uin
   (void) ep_in;
   (void) cur_alt_setting;
 
-  uint16_t dataVal;
-
-  // Generate dummy data
-  for (uint16_t cnt = 0; cnt < CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO; cnt++)
-  {
-    uint16_t * p_buff = i2s_dummy_buffer[cnt];              // 2 bytes per sample
-    dataVal = 1;
-    for (uint16_t cnt2 = 0; cnt2 < AUDIO_SAMPLE_RATE/1000; cnt2++)
-    {
-      for (uint8_t cnt3 = 0; cnt3 < CFG_TUD_AUDIO_FUNC_1_CHANNEL_PER_FIFO_TX; cnt3++)
-      {
-        *p_buff++ = dataVal;
-      }
-      dataVal++;
-    }
-  }
   return true;
 }
 
diff --git a/examples/device/audio_4_channel_mic/src/plot_audio_samples.py b/examples/device/audio_4_channel_mic/src/plot_audio_samples.py
index 8312b4e28..d17a908b6 100644
--- a/examples/device/audio_4_channel_mic/src/plot_audio_samples.py
+++ b/examples/device/audio_4_channel_mic/src/plot_audio_samples.py
@@ -10,11 +10,11 @@ if __name__ == '__main__':
     # print(sd.query_devices())
 
     fs = 48000  		# Sample rate
-    duration = 100e-3   # Duration of recording
+    duration = 1   # Duration of recording
 
     if platform.system() == 'Windows':
         # WDM-KS is needed since there are more than one MicNode device APIs (at least in Windows)
-        device = 'Microphone (MicNode_4_Ch), Windows WDM-KS'
+        device = 'Microphone (MicNode_4_Ch), Windows WASAPI'
     elif platform.system() == 'Darwin':
         device = 'MicNode_4_Ch'
     else:
@@ -25,9 +25,13 @@ if __name__ == '__main__':
     sd.wait()  # Wait until recording is finished
     print('Done!')
 
+
     time = np.arange(0, duration, 1 / fs)  # time vector
+    # strip starting zero
+
     plt.plot(time, myrecording)
     plt.xlabel('Time [s]')
     plt.ylabel('Amplitude')
     plt.title('MicNode 4 Channel')
+    plt.legend(['CH-1', 'CH-2', 'CH-3','CH-4'])
     plt.show()
diff --git a/examples/device/audio_4_channel_mic/src/tusb_config.h b/examples/device/audio_4_channel_mic/src/tusb_config.h
index 5cf6d07c3..46484f847 100644
--- a/examples/device/audio_4_channel_mic/src/tusb_config.h
+++ b/examples/device/audio_4_channel_mic/src/tusb_config.h
@@ -103,6 +103,7 @@ extern "C" {
 //--------------------------------------------------------------------
 
 // Have a look into audio_device.h for all configurations
+#define CFG_TUD_AUDIO_FUNC_1_SAMPLE_RATE              48000
 
 #define CFG_TUD_AUDIO_FUNC_1_DESC_LEN                 TUD_AUDIO_MIC_FOUR_CH_DESC_LEN
 
@@ -112,15 +113,27 @@ extern "C" {
 #define CFG_TUD_AUDIO_ENABLE_EP_IN                    1
 #define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX    2         // This value is not required by the driver, it parses this information from the descriptor once the alternate interface is set by the host - we use it for the setup
 #define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX            4         // This value is not required by the driver, it parses this information from the descriptor once the alternate interface is set by the host - we use it for the setup
-#define CFG_TUD_AUDIO_EP_SZ_IN                        (48 + 1) * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX      // 48 Samples (48 kHz) x 2 Bytes/Sample x CFG_TUD_AUDIO_N_CHANNELS_TX Channels - the Windows driver always needs an extra sample per channel of space more, otherwise it complains... found by trial and error
+#define CFG_TUD_AUDIO_EP_SZ_IN                        TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
+
+#define CFG_TUD_AUDIO_ENABLE_ENCODING                 1
+#define CFG_TUD_AUDIO_EP_IN_FLOW_CONTROL              1
+
+#if CFG_TUD_AUDIO_ENABLE_ENCODING
+
 #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX             CFG_TUD_AUDIO_EP_SZ_IN
 #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ          CFG_TUD_AUDIO_EP_SZ_IN
 
-#define CFG_TUD_AUDIO_ENABLE_ENCODING                 1
 #define CFG_TUD_AUDIO_ENABLE_TYPE_I_ENCODING          1
 #define CFG_TUD_AUDIO_FUNC_1_CHANNEL_PER_FIFO_TX      2         // One I2S stream contains two channels, each stream is saved within one support FIFO - this value is currently fixed, the driver does not support a changing value
 #define CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO        (CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX / CFG_TUD_AUDIO_FUNC_1_CHANNEL_PER_FIFO_TX)
-#define CFG_TUD_AUDIO_FUNC_1_TX_SUPP_SW_FIFO_SZ       (CFG_TUD_AUDIO_EP_SZ_IN / CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO)
+#define CFG_TUD_AUDIO_FUNC_1_TX_SUPP_SW_FIFO_SZ       (TUD_OPT_HIGH_SPEED ? 32 : 4) * (CFG_TUD_AUDIO_EP_SZ_IN / CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO) // Example write FIFO every 1ms, so it should be 8 times larger for HS device
+
+#else
+
+#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX             CFG_TUD_AUDIO_EP_SZ_IN
+#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ          (TUD_OPT_HIGH_SPEED ? 32 : 4) * CFG_TUD_AUDIO_EP_SZ_IN // Example write FIFO every 1ms, so it should be 8 times larger for HS device
+
+#endif
 
 #ifdef __cplusplus
 }
diff --git a/examples/device/audio_test/Makefile b/examples/device/audio_test/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/audio_test/Makefile
+++ b/examples/device/audio_test/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/audio_test/skip.txt b/examples/device/audio_test/skip.txt
index 1ee86a485..65b137814 100644
--- a/examples/device/audio_test/skip.txt
+++ b/examples/device/audio_test/skip.txt
@@ -1,3 +1,4 @@
 mcu:SAMD11
 mcu:SAME5X
 mcu:SAMG
+family:espressif
diff --git a/examples/device/audio_test_multi_rate/Makefile b/examples/device/audio_test_multi_rate/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/audio_test_multi_rate/Makefile
+++ b/examples/device/audio_test_multi_rate/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/audio_test_multi_rate/skip.txt b/examples/device/audio_test_multi_rate/skip.txt
index 1ee86a485..65b137814 100644
--- a/examples/device/audio_test_multi_rate/skip.txt
+++ b/examples/device/audio_test_multi_rate/skip.txt
@@ -1,3 +1,4 @@
 mcu:SAMD11
 mcu:SAME5X
 mcu:SAMG
+family:espressif
diff --git a/examples/device/board_test/Makefile b/examples/device/board_test/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/board_test/Makefile
+++ b/examples/device/board_test/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/board_test/src/main.c b/examples/device/board_test/src/main.c
index 0a134a2e6..91799eb89 100644
--- a/examples/device/board_test/src/main.c
+++ b/examples/device/board_test/src/main.c
@@ -26,39 +26,31 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-
 #include "bsp/board_api.h"
 
-//--------------------------------------------------------------------+
-// MACRO CONSTANT TYPEDEF PROTOTYPES
-//--------------------------------------------------------------------+
-
 /* Blink pattern
  * - 250 ms  : button is not pressed
  * - 1000 ms : button is pressed (and hold)
  */
-enum  {
+enum {
   BLINK_PRESSED = 250,
   BLINK_UNPRESSED = 1000
 };
 
 #define HELLO_STR   "Hello from TinyUSB\r\n"
 
-int main(void)
-{
+int main(void) {
   board_init();
   board_led_write(true);
 
   uint32_t start_ms = 0;
   bool led_state = false;
 
-  while (1)
-  {
+  while (1) {
     uint32_t interval_ms = board_button_read() ? BLINK_PRESSED : BLINK_UNPRESSED;
 
     // Blink and print every interval ms
-    if ( !(board_millis() - start_ms < interval_ms) )
-    {
+    if (!(board_millis() - start_ms < interval_ms)) {
       board_uart_write(HELLO_STR, strlen(HELLO_STR));
 
       start_ms = board_millis();
@@ -69,16 +61,14 @@ int main(void)
 
     // echo
     uint8_t ch;
-    if ( board_uart_read(&ch, 1) > 0 )
-    {
+    if (board_uart_read(&ch, 1) > 0) {
       board_uart_write(&ch, 1);
     }
   }
 }
 
 #if CFG_TUSB_MCU == OPT_MCU_ESP32S2 || CFG_TUSB_MCU == OPT_MCU_ESP32S3
-void app_main(void)
-{
+void app_main(void) {
   main();
 }
 #endif
diff --git a/examples/device/board_test/src/tusb_config.h b/examples/device/board_test/src/tusb_config.h
index 2c2eb5280..1a27cc87f 100644
--- a/examples/device/board_test/src/tusb_config.h
+++ b/examples/device/board_test/src/tusb_config.h
@@ -48,6 +48,11 @@
   #define CFG_TUSB_OS               OPT_OS_NONE
 #endif
 
+// Espressif IDF requires "freertos/" prefix in include path
+#if TU_CHECK_MCU(OPT_MCU_ESP32S2, OPT_MCU_ESP32S3)
+#define CFG_TUSB_OS_INC_PATH  freertos/
+#endif
+
 // This example only test LED & GPIO, disable both device and host stack
 #define CFG_TUD_ENABLED   0
 #define CFG_TUH_ENABLED   0
diff --git a/examples/device/cdc_dual_ports/Makefile b/examples/device/cdc_dual_ports/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/cdc_dual_ports/Makefile
+++ b/examples/device/cdc_dual_ports/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/cdc_msc/Makefile b/examples/device/cdc_msc/Makefile
index 429959e70..0c2e37180 100644
--- a/examples/device/cdc_msc/Makefile
+++ b/examples/device/cdc_msc/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -12,4 +12,4 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/cdc_msc/skip.txt b/examples/device/cdc_msc/skip.txt
index eadb6e74a..833fd072c 100644
--- a/examples/device/cdc_msc/skip.txt
+++ b/examples/device/cdc_msc/skip.txt
@@ -1 +1,2 @@
 mcu:SAMD11
+family:espressif
diff --git a/examples/device/cdc_msc/src/main.c b/examples/device/cdc_msc/src/main.c
index 172f48ae0..0d3f97c8f 100644
--- a/examples/device/cdc_msc/src/main.c
+++ b/examples/device/cdc_msc/src/main.c
@@ -39,7 +39,7 @@
  * - 1000 ms : device mounted
  * - 2500 ms : device is suspended
  */
-enum  {
+enum {
   BLINK_NOT_MOUNTED = 250,
   BLINK_MOUNTED = 1000,
   BLINK_SUSPENDED = 2500,
@@ -51,8 +51,7 @@ void led_blinking_task(void);
 void cdc_task(void);
 
 /*------------- MAIN -------------*/
-int main(void)
-{
+int main(void) {
   board_init();
 
   // init device stack on configured roothub port
@@ -62,8 +61,7 @@ int main(void)
     board_init_after_tusb();
   }
 
-  while (1)
-  {
+  while (1) {
     tud_task(); // tinyusb device task
     led_blinking_task();
 
@@ -76,29 +74,25 @@ int main(void)
 //--------------------------------------------------------------------+
 
 // Invoked when device is mounted
-void tud_mount_cb(void)
-{
+void tud_mount_cb(void) {
   blink_interval_ms = BLINK_MOUNTED;
 }
 
 // Invoked when device is unmounted
-void tud_umount_cb(void)
-{
+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 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)
-{
+void tud_resume_cb(void) {
   blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
 }
 
@@ -106,15 +100,13 @@ void tud_resume_cb(void)
 //--------------------------------------------------------------------+
 // USB CDC
 //--------------------------------------------------------------------+
-void cdc_task(void)
-{
+void cdc_task(void) {
   // connected() check for DTR bit
   // Most but not all terminal client set this when making connection
   // if ( tud_cdc_connected() )
   {
     // connected and there are data available
-    if ( tud_cdc_available() )
-    {
+    if (tud_cdc_available()) {
       // read data
       char buf[64];
       uint32_t count = tud_cdc_read(buf, sizeof(buf));
@@ -131,37 +123,32 @@ void cdc_task(void)
 }
 
 // Invoked when cdc when line state changed e.g connected/disconnected
-void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts)
-{
+void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts) {
   (void) itf;
   (void) rts;
 
   // TODO set some indicator
-  if ( dtr )
-  {
+  if (dtr) {
     // Terminal connected
-  }else
-  {
+  } else {
     // Terminal disconnected
   }
 }
 
 // Invoked when CDC interface received data from host
-void tud_cdc_rx_cb(uint8_t itf)
-{
+void tud_cdc_rx_cb(uint8_t itf) {
   (void) itf;
 }
 
 //--------------------------------------------------------------------+
 // BLINKING TASK
 //--------------------------------------------------------------------+
-void led_blinking_task(void)
-{
+void led_blinking_task(void) {
   static uint32_t start_ms = 0;
   static bool led_state = false;
 
   // Blink every interval ms
-  if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
+  if (board_millis() - start_ms < blink_interval_ms) return; // not enough time
   start_ms += blink_interval_ms;
 
   board_led_write(led_state);
diff --git a/examples/device/cdc_msc_freertos/Makefile b/examples/device/cdc_msc_freertos/Makefile
index 0bee668b7..13f336f99 100644
--- a/examples/device/cdc_msc_freertos/Makefile
+++ b/examples/device/cdc_msc_freertos/Makefile
@@ -1,6 +1,4 @@
-DEPS_SUBMODULES += lib/FreeRTOS-Kernel
-
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 FREERTOS_SRC = lib/FreeRTOS-Kernel
 FREERTOS_PORTABLE_PATH= $(FREERTOS_SRC)/portable/$(if $(USE_IAR),IAR,GCC)
@@ -10,7 +8,7 @@ INC += \
 	src/FreeRTOSConfig \
 	$(TOP)/hw \
 	$(TOP)/$(FREERTOS_SRC)/include \
-	$(TOP)/$(FREERTOS_PORTABLE_SRC)
+	$(TOP)/$(FREERTOS_PORTABLE_SRC) \
 
 # Example source
 EXAMPLE_SOURCE = \
@@ -45,4 +43,4 @@ CFLAGS_GCC += -Wno-error=cast-qual
 # FreeRTOS (lto + Os) linker issue
 LDFLAGS_GCC += -Wl,--undefined=vTaskSwitchContext
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/cdc_msc_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h b/examples/device/cdc_msc_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
index 69d638288..6cc7a6577 100644
--- a/examples/device/cdc_msc_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/examples/device/cdc_msc_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
@@ -96,6 +96,7 @@
 #define configUSE_TICK_HOOK                    0
 #define configUSE_MALLOC_FAILED_HOOK           0 // cause nested extern warning
 #define configCHECK_FOR_STACK_OVERFLOW         2
+#define configCHECK_HANDLER_INSTALLATION       0
 
 /* Run time and task stats gathering related definitions. */
 #define configGENERATE_RUN_TIME_STATS          0
@@ -130,23 +131,6 @@
 #define INCLUDE_xEventGroupSetBitFromISR       0
 #define INCLUDE_xTimerPendFunctionCall         0
 
-/* Define to trap errors during development. */
-// Halt CPU (breakpoint) when hitting error, only apply for Cortex M3, M4, M7
-#if defined(__ARM_ARCH_7M__) || defined (__ARM_ARCH_7EM__)
-  #define configASSERT(_exp) \
-    do {\
-      if ( !(_exp) ) { \
-        volatile uint32_t* ARM_CM_DHCSR =  ((volatile uint32_t*) 0xE000EDF0UL); /* Cortex M CoreDebug->DHCSR */ \
-        if ( (*ARM_CM_DHCSR) & 1UL ) {  /* Only halt mcu if debugger is attached */ \
-          taskDISABLE_INTERRUPTS(); \
-           __asm("BKPT #0\n"); \
-        }\
-      }\
-    } while(0)
-#else
-  #define configASSERT( x )
-#endif
-
 #ifdef __RX__
 /* Renesas RX series */
 #define vSoftwareInterruptISR					        INT_Excep_ICU_SWINT
diff --git a/examples/device/cdc_msc_freertos/src/main.c b/examples/device/cdc_msc_freertos/src/main.c
index 0b115a595..1dadc4513 100644
--- a/examples/device/cdc_msc_freertos/src/main.c
+++ b/examples/device/cdc_msc_freertos/src/main.c
@@ -41,6 +41,7 @@
 
   #define USBD_STACK_SIZE     4096
 #else
+
   #include "FreeRTOS.h"
   #include "semphr.h"
   #include "queue.h"
@@ -54,7 +55,7 @@
 #define CDC_STACK_SZIE      configMINIMAL_STACK_SIZE
 
 //--------------------------------------------------------------------+
-// MACRO CONSTANT TYPEDEF PROTYPES
+// MACRO CONSTANT TYPEDEF PROTOTYPES
 //--------------------------------------------------------------------+
 
 /* Blink pattern
@@ -62,7 +63,7 @@
  * - 1000 ms : device mounted
  * - 2500 ms : device is suspended
  */
-enum  {
+enum {
   BLINK_NOT_MOUNTED = 250,
   BLINK_MOUNTED = 1000,
   BLINK_SUSPENDED = 2500,
@@ -81,16 +82,15 @@ StaticTask_t cdc_taskdef;
 
 TimerHandle_t blinky_tm;
 
-void led_blinky_cb(TimerHandle_t xTimer);
-void usb_device_task(void* param);
-void cdc_task(void* params);
+static void led_blinky_cb(TimerHandle_t xTimer);
+static void usb_device_task(void *param);
+void cdc_task(void *params);
 
 //--------------------------------------------------------------------+
 // Main
 //--------------------------------------------------------------------+
 
-int main(void)
-{
+int main(void) {
   board_init();
 
 #if configSUPPORT_STATIC_ALLOCATION
@@ -104,8 +104,8 @@ int main(void)
   xTaskCreateStatic(cdc_task, "cdc", CDC_STACK_SZIE, NULL, configMAX_PRIORITIES-2, cdc_stack, &cdc_taskdef);
 #else
   blinky_tm = xTimerCreate(NULL, pdMS_TO_TICKS(BLINK_NOT_MOUNTED), true, NULL, led_blinky_cb);
-  xTaskCreate( usb_device_task, "usbd", USBD_STACK_SIZE, NULL, configMAX_PRIORITIES-1, NULL);
-  xTaskCreate( cdc_task, "cdc", CDC_STACK_SZIE, NULL, configMAX_PRIORITIES-2, NULL);
+  xTaskCreate(usb_device_task, "usbd", USBD_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, NULL);
+  xTaskCreate(cdc_task, "cdc", CDC_STACK_SZIE, NULL, configMAX_PRIORITIES - 2, NULL);
 #endif
 
   xTimerStart(blinky_tm, 0);
@@ -119,16 +119,14 @@ int main(void)
 }
 
 #if TU_CHECK_MCU(OPT_MCU_ESP32S2, OPT_MCU_ESP32S3)
-void app_main(void)
-{
+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)
-{
+static void usb_device_task(void *param) {
   (void) param;
 
   // init device stack on configured roothub port
@@ -141,8 +139,7 @@ void usb_device_task(void* param)
   }
 
   // RTOS forever loop
-  while (1)
-  {
+  while (1) {
     // put this thread to waiting state until there is new events
     tud_task();
 
@@ -156,35 +153,28 @@ void usb_device_task(void* param)
 //--------------------------------------------------------------------+
 
 // Invoked when device is mounted
-void tud_mount_cb(void)
-{
+void tud_mount_cb(void) {
   xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
 }
 
 // Invoked when device is unmounted
-void tud_umount_cb(void)
-{
+void tud_umount_cb(void) {
   xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_NOT_MOUNTED), 0);
 }
 
 // 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 tud_suspend_cb(bool remote_wakeup_en) {
   (void) remote_wakeup_en;
   xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_SUSPENDED), 0);
 }
 
 // Invoked when usb bus is resumed
-void tud_resume_cb(void)
-{
-  if (tud_mounted())
-  {
+void tud_resume_cb(void) {
+  if (tud_mounted()) {
     xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
-  }
-  else
-  {
+  } else {
     xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_NOT_MOUNTED), 0);
   }
 }
@@ -192,20 +182,17 @@ void tud_resume_cb(void)
 //--------------------------------------------------------------------+
 // USB CDC
 //--------------------------------------------------------------------+
-void cdc_task(void* params)
-{
+void cdc_task(void *params) {
   (void) params;
 
   // RTOS forever loop
-  while ( 1 )
-  {
+  while (1) {
     // connected() check for DTR bit
     // Most but not all terminal client set this when making connection
     // if ( tud_cdc_connected() )
     {
       // There are data available
-      while ( tud_cdc_available() )
-      {
+      while (tud_cdc_available()) {
         uint8_t buf[64];
 
         // read and echo back
@@ -228,32 +215,27 @@ void cdc_task(void* params)
 }
 
 // Invoked when cdc when line state changed e.g connected/disconnected
-void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts)
-{
+void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts) {
   (void) itf;
   (void) rts;
 
   // TODO set some indicator
-  if ( dtr )
-  {
+  if (dtr) {
     // Terminal connected
-  }else
-  {
+  } else {
     // Terminal disconnected
   }
 }
 
 // Invoked when CDC interface received data from host
-void tud_cdc_rx_cb(uint8_t itf)
-{
+void tud_cdc_rx_cb(uint8_t itf) {
   (void) itf;
 }
 
 //--------------------------------------------------------------------+
 // BLINKING TASK
 //--------------------------------------------------------------------+
-void led_blinky_cb(TimerHandle_t xTimer)
-{
+static void led_blinky_cb(TimerHandle_t xTimer) {
   (void) xTimer;
   static bool led_state = false;
 
diff --git a/examples/device/cdc_msc_freertos/src/msc_disk.c b/examples/device/cdc_msc_freertos/src/msc_disk.c
index 9520dfec1..c8a04bb74 100644
--- a/examples/device/cdc_msc_freertos/src/msc_disk.c
+++ b/examples/device/cdc_msc_freertos/src/msc_disk.c
@@ -184,7 +184,7 @@ int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buff
   uint8_t const* addr = msc_disk[lba] + offset;
   memcpy(buffer, addr, bufsize);
 
-  return bufsize;
+  return (int32_t) bufsize;
 }
 
 // Callback invoked when received WRITE10 command.
@@ -203,7 +203,7 @@ int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t*
   (void) lba; (void) offset; (void) buffer;
 #endif
 
-  return bufsize;
+  return (int32_t) bufsize;
 }
 
 // Callback invoked when received an SCSI command not in built-in list below
@@ -237,14 +237,14 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
   {
     if(in_xfer)
     {
-      memcpy(buffer, response, resplen);
+      memcpy(buffer, response, (size_t) resplen);
     }else
     {
       // SCSI output
     }
   }
 
-  return resplen;
+  return (int32_t) resplen;
 }
 
 #endif
diff --git a/examples/device/cdc_uac2/Makefile b/examples/device/cdc_uac2/Makefile
index b7a8302ce..21dcdb0b2 100644
--- a/examples/device/cdc_uac2/Makefile
+++ b/examples/device/cdc_uac2/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -13,4 +13,4 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/cdc_uac2/src/main.c b/examples/device/cdc_uac2/src/main.c
index 7afa96c1a..25b2cd9a5 100644
--- a/examples/device/cdc_uac2/src/main.c
+++ b/examples/device/cdc_uac2/src/main.c
@@ -60,7 +60,7 @@ int main(void)
     led_blinking_task();
 
 #if (CFG_TUSB_MCU == OPT_MCU_RP2040)
-    // printf("Hello, world!\n");
+    // printf("Hello, world!\r\n");
 #endif
   }
 
diff --git a/examples/device/cdc_uac2/src/tusb_config.h b/examples/device/cdc_uac2/src/tusb_config.h
index 373f0b01f..93489cf62 100644
--- a/examples/device/cdc_uac2/src/tusb_config.h
+++ b/examples/device/cdc_uac2/src/tusb_config.h
@@ -151,11 +151,11 @@ extern "C" {
 // EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
 #define CFG_TUD_AUDIO_ENABLE_EP_OUT               1
 
-#define CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
-#define CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT   TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_OUT   TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
 
-#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ     TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT)
-#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX        TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT) // Maximum EP IN size for all AS alternate settings used
+#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ     TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT)
+#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX        TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT) // Maximum EP IN size for all AS alternate settings used
 
 // Number of Standard AS Interface Descriptors (4.9.1) defined per audio function - this is required to be able to remember the current alternate settings of these interfaces - We restrict us here to have a constant number for all audio functions (which means this has to be the maximum number of AS interfaces an audio function has and a second audio function with less AS interfaces just wastes a few bytes)
 #define CFG_TUD_AUDIO_FUNC_1_N_AS_INT 	          2
diff --git a/examples/device/dfu/Makefile b/examples/device/dfu/Makefile
index b3f2cc588..52a24cdb0 100644
--- a/examples/device/dfu/Makefile
+++ b/examples/device/dfu/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -11,4 +11,4 @@ EXAMPLE_SOURCE = \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/dfu/skip.txt b/examples/device/dfu/skip.txt
index 9ac346bad..9dde06c30 100644
--- a/examples/device/dfu/skip.txt
+++ b/examples/device/dfu/skip.txt
@@ -1,2 +1,3 @@
 mcu:TM4C123
 mcu:BCM2835
+family:espressif
diff --git a/examples/device/dfu_runtime/Makefile b/examples/device/dfu_runtime/Makefile
index da088ea6b..1b4d398cf 100644
--- a/examples/device/dfu_runtime/Makefile
+++ b/examples/device/dfu_runtime/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/dynamic_configuration/Makefile b/examples/device/dynamic_configuration/Makefile
index da088ea6b..1b4d398cf 100644
--- a/examples/device/dynamic_configuration/Makefile
+++ b/examples/device/dynamic_configuration/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/dynamic_configuration/skip.txt b/examples/device/dynamic_configuration/skip.txt
index eadb6e74a..833fd072c 100644
--- a/examples/device/dynamic_configuration/skip.txt
+++ b/examples/device/dynamic_configuration/skip.txt
@@ -1 +1,2 @@
 mcu:SAMD11
+family:espressif
diff --git a/examples/device/hid_boot_interface/Makefile b/examples/device/hid_boot_interface/Makefile
index b3f2cc588..52a24cdb0 100644
--- a/examples/device/hid_boot_interface/Makefile
+++ b/examples/device/hid_boot_interface/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -11,4 +11,4 @@ EXAMPLE_SOURCE = \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/hid_composite/Makefile b/examples/device/hid_composite/Makefile
index da088ea6b..1b4d398cf 100644
--- a/examples/device/hid_composite/Makefile
+++ b/examples/device/hid_composite/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/hid_composite_freertos/Makefile b/examples/device/hid_composite_freertos/Makefile
index a892e7d1d..add9e9814 100644
--- a/examples/device/hid_composite_freertos/Makefile
+++ b/examples/device/hid_composite_freertos/Makefile
@@ -1,6 +1,6 @@
 DEPS_SUBMODULES += lib/FreeRTOS-Kernel
 
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 FREERTOS_SRC = lib/FreeRTOS-Kernel
 FREERTOS_PORTABLE_PATH= $(FREERTOS_SRC)/portable/$(if $(USE_IAR),IAR,GCC)
@@ -44,4 +44,4 @@ CFLAGS_GCC += -Wno-error=cast-qual
 # FreeRTOS (lto + Os) linker issue
 LDFLAGS_GCC += -Wl,--undefined=vTaskSwitchContext
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/hid_composite_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h b/examples/device/hid_composite_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
index 69d638288..6cc7a6577 100644
--- a/examples/device/hid_composite_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/examples/device/hid_composite_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
@@ -96,6 +96,7 @@
 #define configUSE_TICK_HOOK                    0
 #define configUSE_MALLOC_FAILED_HOOK           0 // cause nested extern warning
 #define configCHECK_FOR_STACK_OVERFLOW         2
+#define configCHECK_HANDLER_INSTALLATION       0
 
 /* Run time and task stats gathering related definitions. */
 #define configGENERATE_RUN_TIME_STATS          0
@@ -130,23 +131,6 @@
 #define INCLUDE_xEventGroupSetBitFromISR       0
 #define INCLUDE_xTimerPendFunctionCall         0
 
-/* Define to trap errors during development. */
-// Halt CPU (breakpoint) when hitting error, only apply for Cortex M3, M4, M7
-#if defined(__ARM_ARCH_7M__) || defined (__ARM_ARCH_7EM__)
-  #define configASSERT(_exp) \
-    do {\
-      if ( !(_exp) ) { \
-        volatile uint32_t* ARM_CM_DHCSR =  ((volatile uint32_t*) 0xE000EDF0UL); /* Cortex M CoreDebug->DHCSR */ \
-        if ( (*ARM_CM_DHCSR) & 1UL ) {  /* Only halt mcu if debugger is attached */ \
-          taskDISABLE_INTERRUPTS(); \
-           __asm("BKPT #0\n"); \
-        }\
-      }\
-    } while(0)
-#else
-  #define configASSERT( x )
-#endif
-
 #ifdef __RX__
 /* Renesas RX series */
 #define vSoftwareInterruptISR					        INT_Excep_ICU_SWINT
diff --git a/examples/device/hid_generic_inout/Makefile b/examples/device/hid_generic_inout/Makefile
index da088ea6b..1b4d398cf 100644
--- a/examples/device/hid_generic_inout/Makefile
+++ b/examples/device/hid_generic_inout/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/hid_multiple_interface/Makefile b/examples/device/hid_multiple_interface/Makefile
index da088ea6b..1b4d398cf 100644
--- a/examples/device/hid_multiple_interface/Makefile
+++ b/examples/device/hid_multiple_interface/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/midi_test/Makefile b/examples/device/midi_test/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/midi_test/Makefile
+++ b/examples/device/midi_test/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/msc_dual_lun/Makefile b/examples/device/msc_dual_lun/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/msc_dual_lun/Makefile
+++ b/examples/device/msc_dual_lun/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/msc_dual_lun/skip.txt b/examples/device/msc_dual_lun/skip.txt
index 47e561cf0..a9e3a99b1 100644
--- a/examples/device/msc_dual_lun/skip.txt
+++ b/examples/device/msc_dual_lun/skip.txt
@@ -1,2 +1,3 @@
 mcu:SAMD11
 mcu:MKL25ZXX
+family:espressif
diff --git a/examples/device/net_lwip_webserver/Makefile b/examples/device/net_lwip_webserver/Makefile
index 90b429d00..22426ba0d 100644
--- a/examples/device/net_lwip_webserver/Makefile
+++ b/examples/device/net_lwip_webserver/Makefile
@@ -1,6 +1,6 @@
 DEPS_SUBMODULES += lib/lwip
 
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 # suppress warning caused by lwip
 CFLAGS_GCC += \
@@ -67,4 +67,4 @@ SRC_C += \
   lib/networking/dnserver.c \
   lib/networking/rndis_reports.c
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/net_lwip_webserver/skip.txt b/examples/device/net_lwip_webserver/skip.txt
index e3a726a2b..75aa2ef14 100644
--- a/examples/device/net_lwip_webserver/skip.txt
+++ b/examples/device/net_lwip_webserver/skip.txt
@@ -9,3 +9,4 @@ family:broadcom_64bit
 family:broadcom_32bit
 board:curiosity_nano
 board:frdm_kl25z
+family:espressif
diff --git a/examples/device/uac2_headset/Makefile b/examples/device/uac2_headset/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/uac2_headset/Makefile
+++ b/examples/device/uac2_headset/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/uac2_headset/skip.txt b/examples/device/uac2_headset/skip.txt
index 70d8e8838..a2a76af0e 100644
--- a/examples/device/uac2_headset/skip.txt
+++ b/examples/device/uac2_headset/skip.txt
@@ -5,3 +5,4 @@ mcu:SAMD11
 mcu:SAME5X
 mcu:SAMG
 board:stm32l052dap52
+family:espressif
diff --git a/examples/device/uac2_headset/src/tusb_config.h b/examples/device/uac2_headset/src/tusb_config.h
index 1a3e23e95..b770483dc 100644
--- a/examples/device/uac2_headset/src/tusb_config.h
+++ b/examples/device/uac2_headset/src/tusb_config.h
@@ -151,11 +151,11 @@ extern "C" {
 // EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
 #define CFG_TUD_AUDIO_ENABLE_EP_OUT               1
 
-#define CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
-#define CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT   TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_OUT   TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
 
-#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ     TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT)*2
-#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX        TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT) // Maximum EP IN size for all AS alternate settings used
+#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ     TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_OUT)*2
+#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX        TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_OUT) // Maximum EP IN size for all AS alternate settings used
 
 // Number of Standard AS Interface Descriptors (4.9.1) defined per audio function - this is required to be able to remember the current alternate settings of these interfaces - We restrict us here to have a constant number for all audio functions (which means this has to be the maximum number of AS interfaces an audio function has and a second audio function with less AS interfaces just wastes a few bytes)
 #define CFG_TUD_AUDIO_FUNC_1_N_AS_INT 	          2
diff --git a/examples/device/usbtmc/Makefile b/examples/device/usbtmc/Makefile
index da088ea6b..1b4d398cf 100644
--- a/examples/device/usbtmc/Makefile
+++ b/examples/device/usbtmc/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/usbtmc/skip.txt b/examples/device/usbtmc/skip.txt
index a43106cf0..ccff857ac 100644
--- a/examples/device/usbtmc/skip.txt
+++ b/examples/device/usbtmc/skip.txt
@@ -1 +1,2 @@
 mcu:BCM2835
+family:espressif
diff --git a/examples/device/video_capture/Makefile b/examples/device/video_capture/Makefile
index 90d174c32..d698a848d 100644
--- a/examples/device/video_capture/Makefile
+++ b/examples/device/video_capture/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 ifeq ($(DISABLE_MJPEG),1)
 CFLAGS += -DCFG_EXAMPLE_VIDEO_DISABLE_MJPEG
@@ -15,4 +15,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk
diff --git a/examples/device/video_capture/skip.txt b/examples/device/video_capture/skip.txt
index 5898664a2..db64cc639 100644
--- a/examples/device/video_capture/skip.txt
+++ b/examples/device/video_capture/skip.txt
@@ -1,3 +1,4 @@
 mcu:MSP430x5xx
 mcu:NUC121
 mcu:SAMD11
+family:espressif
diff --git a/examples/device/video_capture/src/images.h b/examples/device/video_capture/src/images.h
index 0398428b3..784e7754c 100644
--- a/examples/device/video_capture/src/images.h
+++ b/examples/device/video_capture/src/images.h
@@ -1,4 +1,4 @@
-#if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPG)
+#if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
 static const unsigned char frame_buffer[128 * (96 + 1) * 2] = {
   /* 0 */
   0xeb, 0x80, 0xeb, 0x80, 0xeb, 0x80, 0xeb, 0x80, 0xeb, 0x80, 0xeb, 0x80, 0xeb, 0x80, 0xeb, 0x80,
diff --git a/examples/device/video_capture/src/main.c b/examples/device/video_capture/src/main.c
index c653761c1..711d4710a 100644
--- a/examples/device/video_capture/src/main.c
+++ b/examples/device/video_capture/src/main.c
@@ -115,7 +115,7 @@ static unsigned interval_ms = 1000 / FRAME_RATE;
 #ifdef CFG_EXAMPLE_VIDEO_READONLY
 #include "images.h"
 
-# if !defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPG)
+# if !defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
 static struct {
   uint32_t       size;
   uint8_t const *buffer;
@@ -187,7 +187,7 @@ void video_task(void)
     already_sent = 1;
     start_ms = board_millis();
 #ifdef CFG_EXAMPLE_VIDEO_READONLY
-# if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPG)
+# if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
     tud_video_n_frame_xfer(0, 0, (void*)(uintptr_t)&frame_buffer[(frame_num % (FRAME_WIDTH / 2)) * 4],
                            FRAME_WIDTH * FRAME_HEIGHT * 16/8);
 # else
@@ -205,7 +205,7 @@ void video_task(void)
   start_ms += interval_ms;
 
 #ifdef CFG_EXAMPLE_VIDEO_READONLY
-# if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPG)
+# if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
   tud_video_n_frame_xfer(0, 0, (void*)(uintptr_t)&frame_buffer[(frame_num % (FRAME_WIDTH / 2)) * 4],
                          FRAME_WIDTH * FRAME_HEIGHT * 16/8);
 # else
diff --git a/examples/device/video_capture/src/usb_descriptors.c b/examples/device/video_capture/src/usb_descriptors.c
index 292d86cd9..49919fc58 100644
--- a/examples/device/video_capture/src/usb_descriptors.c
+++ b/examples/device/video_capture/src/usb_descriptors.c
@@ -37,6 +37,9 @@
 #define USB_PID           (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
     _PID_MAP(MIDI, 3) | _PID_MAP(AUDIO, 4) | _PID_MAP(VIDEO, 5) | _PID_MAP(VENDOR, 6) )
 
+#define USB_VID   0xCafe
+#define USB_BCD   0x0200
+
 //--------------------------------------------------------------------+
 // Device Descriptors
 //--------------------------------------------------------------------+
@@ -44,7 +47,7 @@ tusb_desc_device_t const desc_device =
 {
     .bLength            = sizeof(tusb_desc_device_t),
     .bDescriptorType    = TUSB_DESC_DEVICE,
-    .bcdUSB             = 0x0200,
+    .bcdUSB             = USB_BCD,
 
     // Use Interface Association Descriptor (IAD) for Video
     // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
@@ -54,7 +57,7 @@ tusb_desc_device_t const desc_device =
 
     .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-    .idVendor           = 0xCafe,
+    .idVendor           = USB_VID,
     .idProduct          = USB_PID,
     .bcdDevice          = 0x0100,
 
@@ -137,6 +140,76 @@ uint8_t const desc_fs_configuration[] =
 #endif
 };
 
+#if TUD_OPT_HIGH_SPEED
+// Per USB specs: high speed capable device must report device_qualifier and other_speed_configuration
+
+uint8_t const desc_hs_configuration[] =
+{
+  // Config number, interface count, string index, total length, attribute, power in mA
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0, 500),
+
+  // IAD for Video Control
+#if defined(CFG_EXAMPLE_VIDEO_READONLY) && !defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
+# if 1 == CFG_TUD_VIDEO_STREAMING_BULK
+  TUD_VIDEO_CAPTURE_DESCRIPTOR_MJPEG_BULK(4, EPNUM_VIDEO_IN,
+                                          FRAME_WIDTH, FRAME_HEIGHT, FRAME_RATE,
+                                          512)
+# else
+  TUD_VIDEO_CAPTURE_DESCRIPTOR_MJPEG(4, EPNUM_VIDEO_IN,
+                                     FRAME_WIDTH, FRAME_HEIGHT, FRAME_RATE,
+                                     CFG_TUD_VIDEO_STREAMING_EP_BUFSIZE)
+# endif
+#else
+# if 1 == CFG_TUD_VIDEO_STREAMING_BULK
+  TUD_VIDEO_CAPTURE_DESCRIPTOR_UNCOMPR_BULK(4, EPNUM_VIDEO_IN,
+                                            FRAME_WIDTH, FRAME_HEIGHT, FRAME_RATE,
+                                            512)
+# else
+  TUD_VIDEO_CAPTURE_DESCRIPTOR_UNCOMPR(4, EPNUM_VIDEO_IN,
+                                       FRAME_WIDTH, FRAME_HEIGHT, FRAME_RATE,
+                                       CFG_TUD_VIDEO_STREAMING_EP_BUFSIZE)
+# endif
+#endif
+};
+
+// device qualifier is mostly similar to device descriptor since we don't change configuration based on speed
+tusb_desc_device_qualifier_t const desc_device_qualifier =
+{
+  .bLength            = sizeof(tusb_desc_device_t),
+  .bDescriptorType    = TUSB_DESC_DEVICE,
+  .bcdUSB             = USB_BCD,
+
+  .bDeviceClass       = TUSB_CLASS_MISC,
+  .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
+  .bDeviceProtocol    = MISC_PROTOCOL_IAD,
+
+  .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
+  .bNumConfigurations = 0x01,
+  .bReserved          = 0x00
+};
+
+// Invoked when received GET DEVICE QUALIFIER DESCRIPTOR request
+// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete.
+// device_qualifier descriptor describes information about a high-speed capable device that would
+// change if the device were operating at the other speed. If not highspeed capable stall this request.
+uint8_t const* tud_descriptor_device_qualifier_cb(void)
+{
+  return (uint8_t const*) &desc_device_qualifier;
+}
+
+// Invoked when received GET OTHER SEED CONFIGURATION DESCRIPTOR request
+// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
+// Configuration descriptor in the other speed e.g if high speed then this is for full speed and vice versa
+uint8_t const* tud_descriptor_other_speed_configuration_cb(uint8_t index)
+{
+  (void) index; // for multiple configurations
+
+  // if link speed is high return fullspeed config, and vice versa
+  return (tud_speed_get() == TUSB_SPEED_HIGH) ?  desc_fs_configuration : desc_hs_configuration;
+}
+
+#endif // highspeed
+
 // Invoked when received GET CONFIGURATION DESCRIPTOR
 // Application return pointer to descriptor
 // Descriptor contents must exist long enough for transfer to complete
@@ -144,7 +217,12 @@ uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
 {
   (void) index; // for multiple configurations
 
+#if TUD_OPT_HIGH_SPEED
+  // Although we are highspeed, host may be fullspeed.
+  return (tud_speed_get() == TUSB_SPEED_HIGH) ?  desc_hs_configuration : desc_fs_configuration;
+#else
   return desc_fs_configuration;
+#endif
 }
 
 //--------------------------------------------------------------------+
diff --git a/examples/device/webusb_serial/Makefile b/examples/device/webusb_serial/Makefile
index 2a3d854fb..7fa475da5 100644
--- a/examples/device/webusb_serial/Makefile
+++ b/examples/device/webusb_serial/Makefile
@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk