Merge branch 'master' into master

53 files changed, 161 insertions, 79 deletions

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index c603d0c22..d34c6ed5d 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 #set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 include(${CMAKE_CURRENT_SOURCE_DIR}/../hw/bsp/family_support.cmake)
diff --git a/examples/build_system/cmake/toolchain/arm_gcc.cmake b/examples/build_system/cmake/toolchain/arm_gcc.cmake
index 0b0949dd8..6a660e259 100644
--- a/examples/build_system/cmake/toolchain/arm_gcc.cmake
+++ b/examples/build_system/cmake/toolchain/arm_gcc.cmake
@@ -1,3 +1,7 @@
+if (RTOS STREQUAL zephyr)
+  return()
+endif ()
+
 if (NOT DEFINED CMAKE_C_COMPILER)
   set(CMAKE_C_COMPILER "arm-none-eabi-gcc")
 endif ()
diff --git a/examples/build_system/cmake/toolchain/common.cmake b/examples/build_system/cmake/toolchain/common.cmake
index 688715914..4c181137b 100644
--- a/examples/build_system/cmake/toolchain/common.cmake
+++ b/examples/build_system/cmake/toolchain/common.cmake
@@ -4,6 +4,7 @@ include(CMakePrintHelpers)
 # Common
 # ----------------------------------------------------------------------------
 set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_SYSTEM_PROCESSOR ${CMAKE_SYSTEM_CPU})
 set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE)
 
 # Look for includes and libraries only in the target system prefix.
@@ -13,8 +14,8 @@ set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 
 # pass TOOLCHAIN_CPU to
-set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES CMAKE_SYSTEM_PROCESSOR)
-include(${CMAKE_CURRENT_LIST_DIR}/../cpu/${CMAKE_SYSTEM_PROCESSOR}.cmake)
+set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES CMAKE_SYSTEM_PROCESSOR CMAKE_SYSTEM_CPU)
+include(${CMAKE_CURRENT_LIST_DIR}/../cpu/${CMAKE_SYSTEM_CPU}.cmake)
 
 # ----------------------------------------------------------------------------
 # Compile flags
diff --git a/examples/device/CMakeLists.txt b/examples/device/CMakeLists.txt
index 26a808a21..bb7dd0a0f 100644
--- a/examples/device/CMakeLists.txt
+++ b/examples/device/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/audio_4_channel_mic/CMakeLists.txt b/examples/device/audio_4_channel_mic/CMakeLists.txt
index 0f5d36193..c8086ae46 100644
--- a/examples/device/audio_4_channel_mic/CMakeLists.txt
+++ b/examples/device/audio_4_channel_mic/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/audio_4_channel_mic_freertos/CMakeLists.txt b/examples/device/audio_4_channel_mic_freertos/CMakeLists.txt
index 285d4490b..c50d4fef7 100644
--- a/examples/device/audio_4_channel_mic_freertos/CMakeLists.txt
+++ b/examples/device/audio_4_channel_mic_freertos/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/audio_test/CMakeLists.txt b/examples/device/audio_test/CMakeLists.txt
index f61e1b640..6a7e68c3d 100644
--- a/examples/device/audio_test/CMakeLists.txt
+++ b/examples/device/audio_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/audio_test_freertos/CMakeLists.txt b/examples/device/audio_test_freertos/CMakeLists.txt
index 33f3b915f..6ce9e72fe 100644
--- a/examples/device/audio_test_freertos/CMakeLists.txt
+++ b/examples/device/audio_test_freertos/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/audio_test_multi_rate/CMakeLists.txt b/examples/device/audio_test_multi_rate/CMakeLists.txt
index f61e1b640..6a7e68c3d 100644
--- a/examples/device/audio_test_multi_rate/CMakeLists.txt
+++ b/examples/device/audio_test_multi_rate/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/board_test/CMakeLists.txt b/examples/device/board_test/CMakeLists.txt
index 012eff095..9a604a732 100644
--- a/examples/device/board_test/CMakeLists.txt
+++ b/examples/device/board_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
@@ -15,18 +15,23 @@ if(FAMILY STREQUAL "espressif")
   return()
 endif()
 
-add_executable(${PROJECT})
+if (RTOS STREQUAL zephyr)
+  set(EXE_NAME app)
+else()
+  set(EXE_NAME ${PROJECT})
+  add_executable(${EXE_NAME})
+endif()
 
 # Example source
-target_sources(${PROJECT} PUBLIC
+target_sources(${EXE_NAME} PRIVATE
   ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
   )
 
 # Example include
-target_include_directories(${PROJECT} PUBLIC
+target_include_directories(${EXE_NAME} PUBLIC
   ${CMAKE_CURRENT_SOURCE_DIR}/src
   )
 
 # 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(${PROJECT} noos)
+family_configure_device_example(${EXE_NAME} ${RTOS})
diff --git a/examples/device/cdc_dual_ports/CMakeLists.txt b/examples/device/cdc_dual_ports/CMakeLists.txt
index f61e1b640..6a7e68c3d 100644
--- a/examples/device/cdc_dual_ports/CMakeLists.txt
+++ b/examples/device/cdc_dual_ports/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/cdc_msc/CMakeLists.txt b/examples/device/cdc_msc/CMakeLists.txt
index c2f9cb095..b07f92342 100644
--- a/examples/device/cdc_msc/CMakeLists.txt
+++ b/examples/device/cdc_msc/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 #set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
@@ -16,20 +16,25 @@ if(FAMILY STREQUAL "espressif")
   return()
 endif()
 
-add_executable(${PROJECT})
+if (RTOS STREQUAL zephyr)
+  set(EXE_NAME app)
+else()
+  set(EXE_NAME ${PROJECT})
+  add_executable(${EXE_NAME})
+endif()
 
 # Example source
-target_sources(${PROJECT} PUBLIC
+target_sources(${EXE_NAME} PRIVATE
   ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
   ${CMAKE_CURRENT_SOURCE_DIR}/src/msc_disk.c
   ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
   )
 
 # Example include
-target_include_directories(${PROJECT} PUBLIC
+target_include_directories(${EXE_NAME} PUBLIC
   ${CMAKE_CURRENT_SOURCE_DIR}/src
   )
 
-# Configure compilation flags and libraries for the example... see the corresponding function
-# in hw/bsp/FAMILY/family.cmake for details.
-family_configure_device_example(${PROJECT} noos)
+# Configure compilation flags and libraries for the example without RTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_device_example(${EXE_NAME} ${RTOS})
diff --git a/examples/device/cdc_msc/prj.conf b/examples/device/cdc_msc/prj.conf
new file mode 100644
index 000000000..2f5139d9d
--- /dev/null
+++ b/examples/device/cdc_msc/prj.conf
@@ -0,0 +1,6 @@
+CONFIG_GPIO=y
+CONFIG_FPU=y
+CONFIG_NO_OPTIMIZATIONS=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_NRFX_POWER=y
+CONFIG_NRFX_UARTE0=y
diff --git a/examples/device/cdc_msc/src/msc_disk.c b/examples/device/cdc_msc/src/msc_disk.c
index c1132bbfc..d325d77fa 100644
--- a/examples/device/cdc_msc/src/msc_disk.c
+++ b/examples/device/cdc_msc/src/msc_disk.c
@@ -190,10 +190,14 @@ int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buff
   (void) lun;
 
   // out of ramdisk
-  if ( lba >= DISK_BLOCK_NUM ) return -1;
+  if ( lba >= DISK_BLOCK_NUM ) {
+    return -1;
+  }
 
   // Check for overflow of offset + bufsize
-  if ( offset + bufsize >= DISK_BLOCK_SIZE ) return -1;
+  if ( offset + bufsize > DISK_BLOCK_SIZE ) {
+    return -1;
+  }
 
   uint8_t const* addr = msc_disk[lba] + offset;
   memcpy(buffer, addr, bufsize);
diff --git a/examples/device/cdc_msc_freertos/CMakeLists.txt b/examples/device/cdc_msc_freertos/CMakeLists.txt
index 32a9e2930..f7636a07a 100644
--- a/examples/device/cdc_msc_freertos/CMakeLists.txt
+++ b/examples/device/cdc_msc_freertos/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/cdc_msc_freertos/src/msc_disk.c b/examples/device/cdc_msc_freertos/src/msc_disk.c
index e13c24436..d325d77fa 100644
--- a/examples/device/cdc_msc_freertos/src/msc_disk.c
+++ b/examples/device/cdc_msc_freertos/src/msc_disk.c
@@ -190,9 +190,14 @@ int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buff
   (void) lun;
 
   // out of ramdisk
-  if ( lba >= DISK_BLOCK_NUM ) return -1;
+  if ( lba >= DISK_BLOCK_NUM ) {
+    return -1;
+  }
+
   // Check for overflow of offset + bufsize
-  if ( offset + bufsize >= DISK_BLOCK_SIZE ) return -1;
+  if ( offset + bufsize > DISK_BLOCK_SIZE ) {
+    return -1;
+  }
 
   uint8_t const* addr = msc_disk[lba] + offset;
   memcpy(buffer, addr, bufsize);
diff --git a/examples/device/cdc_uac2/CMakeLists.txt b/examples/device/cdc_uac2/CMakeLists.txt
index 64e4374e9..c8c797637 100644
--- a/examples/device/cdc_uac2/CMakeLists.txt
+++ b/examples/device/cdc_uac2/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/dfu/CMakeLists.txt b/examples/device/dfu/CMakeLists.txt
index a01eb3456..3da8ee3df 100644
--- a/examples/device/dfu/CMakeLists.txt
+++ b/examples/device/dfu/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/dfu_runtime/CMakeLists.txt b/examples/device/dfu_runtime/CMakeLists.txt
index a01eb3456..3da8ee3df 100644
--- a/examples/device/dfu_runtime/CMakeLists.txt
+++ b/examples/device/dfu_runtime/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/dynamic_configuration/CMakeLists.txt b/examples/device/dynamic_configuration/CMakeLists.txt
index 2b20d2234..8a62d6ba2 100644
--- a/examples/device/dynamic_configuration/CMakeLists.txt
+++ b/examples/device/dynamic_configuration/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/hid_boot_interface/CMakeLists.txt b/examples/device/hid_boot_interface/CMakeLists.txt
index a01eb3456..3da8ee3df 100644
--- a/examples/device/hid_boot_interface/CMakeLists.txt
+++ b/examples/device/hid_boot_interface/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/hid_composite/CMakeLists.txt b/examples/device/hid_composite/CMakeLists.txt
index a01eb3456..3da8ee3df 100644
--- a/examples/device/hid_composite/CMakeLists.txt
+++ b/examples/device/hid_composite/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/hid_composite_freertos/CMakeLists.txt b/examples/device/hid_composite_freertos/CMakeLists.txt
index 33f3b915f..6ce9e72fe 100644
--- a/examples/device/hid_composite_freertos/CMakeLists.txt
+++ b/examples/device/hid_composite_freertos/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/hid_generic_inout/CMakeLists.txt b/examples/device/hid_generic_inout/CMakeLists.txt
index a01eb3456..3da8ee3df 100644
--- a/examples/device/hid_generic_inout/CMakeLists.txt
+++ b/examples/device/hid_generic_inout/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/hid_multiple_interface/CMakeLists.txt b/examples/device/hid_multiple_interface/CMakeLists.txt
index a01eb3456..3da8ee3df 100644
--- a/examples/device/hid_multiple_interface/CMakeLists.txt
+++ b/examples/device/hid_multiple_interface/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/midi_test/CMakeLists.txt b/examples/device/midi_test/CMakeLists.txt
index f61e1b640..6a7e68c3d 100644
--- a/examples/device/midi_test/CMakeLists.txt
+++ b/examples/device/midi_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/midi_test_freertos/CMakeLists.txt b/examples/device/midi_test_freertos/CMakeLists.txt
index 33f3b915f..6ce9e72fe 100644
--- a/examples/device/midi_test_freertos/CMakeLists.txt
+++ b/examples/device/midi_test_freertos/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/msc_dual_lun/CMakeLists.txt b/examples/device/msc_dual_lun/CMakeLists.txt
index e69fead35..3955bfb49 100644
--- a/examples/device/msc_dual_lun/CMakeLists.txt
+++ b/examples/device/msc_dual_lun/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
@@ -15,20 +15,25 @@ if(FAMILY STREQUAL "espressif")
   return()
 endif()
 
-add_executable(${PROJECT})
+if (RTOS STREQUAL zephyr)
+  set(EXE_NAME app)
+else()
+  set(EXE_NAME ${PROJECT})
+  add_executable(${EXE_NAME})
+endif()
 
 # Example source
-target_sources(${PROJECT} PUBLIC
+target_sources(${EXE_NAME} PRIVATE
   ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
   ${CMAKE_CURRENT_SOURCE_DIR}/src/msc_disk_dual.c
   ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
   )
 
 # Example include
-target_include_directories(${PROJECT} PUBLIC
+target_include_directories(${EXE_NAME} PUBLIC
   ${CMAKE_CURRENT_SOURCE_DIR}/src
   )
 
 # 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(${PROJECT} noos)
+family_configure_device_example(${EXE_NAME} ${RTOS})
diff --git a/examples/device/msc_dual_lun/prj.conf b/examples/device/msc_dual_lun/prj.conf
new file mode 100644
index 000000000..2f5139d9d
--- /dev/null
+++ b/examples/device/msc_dual_lun/prj.conf
@@ -0,0 +1,6 @@
+CONFIG_GPIO=y
+CONFIG_FPU=y
+CONFIG_NO_OPTIMIZATIONS=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_NRFX_POWER=y
+CONFIG_NRFX_UARTE0=y
diff --git a/examples/device/net_lwip_webserver/CMakeLists.txt b/examples/device/net_lwip_webserver/CMakeLists.txt
index 13923b583..87b92f4dc 100644
--- a/examples/device/net_lwip_webserver/CMakeLists.txt
+++ b/examples/device/net_lwip_webserver/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_LIST_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/uac2_headset/CMakeLists.txt b/examples/device/uac2_headset/CMakeLists.txt
index e92a57148..ced98a909 100644
--- a/examples/device/uac2_headset/CMakeLists.txt
+++ b/examples/device/uac2_headset/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/uac2_speaker_fb/CMakeLists.txt b/examples/device/uac2_speaker_fb/CMakeLists.txt
index f40ca8716..0ed3db646 100644
--- a/examples/device/uac2_speaker_fb/CMakeLists.txt
+++ b/examples/device/uac2_speaker_fb/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/usbtmc/CMakeLists.txt b/examples/device/usbtmc/CMakeLists.txt
index a63ca2d81..d2deb72d5 100644
--- a/examples/device/usbtmc/CMakeLists.txt
+++ b/examples/device/usbtmc/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/video_capture/CMakeLists.txt b/examples/device/video_capture/CMakeLists.txt
index 80dc39ca5..90788fa60 100644
--- a/examples/device/video_capture/CMakeLists.txt
+++ b/examples/device/video_capture/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/video_capture/src/main.c b/examples/device/video_capture/src/main.c
index 8bb924c61..04d4af4e5 100644
--- a/examples/device/video_capture/src/main.c
+++ b/examples/device/video_capture/src/main.c
@@ -185,7 +185,7 @@ static void fill_color_bar(uint8_t* buffer, unsigned start_position) {
 
 #endif
 
-void video_send_frame(void) {
+static void video_send_frame(void) {
   static unsigned start_ms = 0;
   static unsigned already_sent = 0;
 
diff --git a/examples/device/video_capture_2ch/CMakeLists.txt b/examples/device/video_capture_2ch/CMakeLists.txt
index 80dc39ca5..90788fa60 100644
--- a/examples/device/video_capture_2ch/CMakeLists.txt
+++ b/examples/device/video_capture_2ch/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/device/webusb_serial/CMakeLists.txt b/examples/device/webusb_serial/CMakeLists.txt
index e92a57148..ced98a909 100644
--- a/examples/device/webusb_serial/CMakeLists.txt
+++ b/examples/device/webusb_serial/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/dual/CMakeLists.txt b/examples/dual/CMakeLists.txt
index f11074e93..c5e3ffce4 100644
--- a/examples/dual/CMakeLists.txt
+++ b/examples/dual/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../hw/bsp/family_support.cmake)
 
diff --git a/examples/dual/host_hid_to_device_cdc/CMakeLists.txt b/examples/dual/host_hid_to_device_cdc/CMakeLists.txt
index 54e36e3d3..6ae5b5766 100644
--- a/examples/dual/host_hid_to_device_cdc/CMakeLists.txt
+++ b/examples/dual/host_hid_to_device_cdc/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/dual/host_info_to_device_cdc/CMakeLists.txt b/examples/dual/host_info_to_device_cdc/CMakeLists.txt
index 54e36e3d3..6ae5b5766 100644
--- a/examples/dual/host_info_to_device_cdc/CMakeLists.txt
+++ b/examples/dual/host_info_to_device_cdc/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/CMakeLists.txt b/examples/host/CMakeLists.txt
index 793f6ab08..175646830 100644
--- a/examples/host/CMakeLists.txt
+++ b/examples/host/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/bare_api/CMakeLists.txt b/examples/host/bare_api/CMakeLists.txt
index 76182d6fa..0efe84b60 100644
--- a/examples/host/bare_api/CMakeLists.txt
+++ b/examples/host/bare_api/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/cdc_msc_hid/CMakeLists.txt b/examples/host/cdc_msc_hid/CMakeLists.txt
index a7c372a34..e8928cda5 100644
--- a/examples/host/cdc_msc_hid/CMakeLists.txt
+++ b/examples/host/cdc_msc_hid/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/cdc_msc_hid_freertos/CMakeLists.txt b/examples/host/cdc_msc_hid_freertos/CMakeLists.txt
index b4004f8d7..78b2784fe 100644
--- a/examples/host/cdc_msc_hid_freertos/CMakeLists.txt
+++ b/examples/host/cdc_msc_hid_freertos/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/device_info/CMakeLists.txt b/examples/host/device_info/CMakeLists.txt
index 6a16155ec..33953233d 100644
--- a/examples/host/device_info/CMakeLists.txt
+++ b/examples/host/device_info/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/hid_controller/CMakeLists.txt b/examples/host/hid_controller/CMakeLists.txt
index c1b500dd8..fb5faf210 100644
--- a/examples/host/hid_controller/CMakeLists.txt
+++ b/examples/host/hid_controller/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/msc_file_explorer/CMakeLists.txt b/examples/host/msc_file_explorer/CMakeLists.txt
index 1a57c7466..5ac75c04a 100644
--- a/examples/host/msc_file_explorer/CMakeLists.txt
+++ b/examples/host/msc_file_explorer/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/host/msc_file_explorer/src/main.c b/examples/host/msc_file_explorer/src/main.c
index 9509035b4..8197c3c8d 100644
--- a/examples/host/msc_file_explorer/src/main.c
+++ b/examples/host/msc_file_explorer/src/main.c
@@ -62,15 +62,13 @@
 #include "bsp/board_api.h"
 #include "tusb.h"
 
+#include "msc_app.h"
+
 //--------------------------------------------------------------------+
 // MACRO CONSTANT TYPEDEF PROTYPES
 //--------------------------------------------------------------------+
 void led_blinking_task(void);
 
-// from msc_app.c
-extern bool msc_app_init(void);
-extern void msc_app_task(void);
-
 /*------------- MAIN -------------*/
 int main(void) {
   board_init();
diff --git a/examples/host/msc_file_explorer/src/msc_app.c b/examples/host/msc_file_explorer/src/msc_app.c
index 035d74689..226c870ea 100644
--- a/examples/host/msc_file_explorer/src/msc_app.c
+++ b/examples/host/msc_file_explorer/src/msc_app.c
@@ -67,7 +67,9 @@ bool cli_init(void);
 
 bool msc_app_init(void)
 {
-  for(size_t i=0; i<CFG_TUH_DEVICE_MAX; i++) _disk_busy[i] = false;
+  for(size_t i=0; i<CFG_TUH_DEVICE_MAX; i++) {
+    _disk_busy[i] = false;
+  }
 
   // disable stdout buffered for echoing typing command
   #ifndef __ICCARM__ // TODO IAR doesn't support stream control ?
@@ -81,7 +83,9 @@ bool msc_app_init(void)
 
 void msc_app_task(void)
 {
-  if (!_cli) return;
+  if (!_cli) {
+    return;
+  }
 
   int ch = board_getchar();
   if ( ch > 0 )
@@ -99,8 +103,7 @@ void msc_app_task(void)
 //
 //--------------------------------------------------------------------+
 
-bool inquiry_complete_cb(uint8_t dev_addr, tuh_msc_complete_data_t const * cb_data)
-{
+static bool inquiry_complete_cb(uint8_t dev_addr, tuh_msc_complete_data_t const * cb_data) {
   msc_cbw_t const* cbw = cb_data->cbw;
   msc_csw_t const* csw = cb_data->csw;
 
@@ -294,18 +297,11 @@ void cli_cmd_mkdir(EmbeddedCli *cli, char *args, void *context);
 void cli_cmd_mv(EmbeddedCli *cli, char *args, void *context);
 void cli_cmd_rm(EmbeddedCli *cli, char *args, void *context);
 
-void cli_write_char(EmbeddedCli *cli, char c)
-{
+static void cli_write_char(EmbeddedCli *cli, char c) {
   (void) cli;
   putchar((int) c);
 }
 
-void cli_cmd_unknown(EmbeddedCli *cli, CliCommand *command)
-{
-  (void) cli;
-  printf("%s: command not found\r\n", command->name);
-}
-
 bool cli_init(void)
 {
   EmbeddedCliConfig *config = embeddedCliDefaultConfig();
diff --git a/examples/host/msc_file_explorer/src/msc_app.h b/examples/host/msc_file_explorer/src/msc_app.h
new file mode 100644
index 000000000..3ba03d0dc
--- /dev/null
+++ b/examples/host/msc_file_explorer/src/msc_app.h
@@ -0,0 +1,35 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2025 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.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+#ifndef MSC_APP_H
+#define MSC_APP_H
+
+#include <stdbool.h>
+
+bool msc_app_init(void);
+void msc_app_task(void);
+
+
+#endif
diff --git a/examples/typec/CMakeLists.txt b/examples/typec/CMakeLists.txt
index c7641494e..24c25908a 100644
--- a/examples/typec/CMakeLists.txt
+++ b/examples/typec/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../hw/bsp/family_support.cmake)
 
diff --git a/examples/typec/power_delivery/CMakeLists.txt b/examples/typec/power_delivery/CMakeLists.txt
index 012eff095..837b4996a 100644
--- a/examples/typec/power_delivery/CMakeLists.txt
+++ b/examples/typec/power_delivery/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 3.20)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
diff --git a/examples/west.yml b/examples/west.yml
new file mode 100644
index 000000000..0683f6861
--- /dev/null
+++ b/examples/west.yml
@@ -0,0 +1,12 @@
+manifest:
+  remotes:
+    - name: zephyrproject-rtos
+      url-base: https://github.com/zephyrproject-rtos
+  projects:
+    - name: zephyr
+      remote: zephyrproject-rtos
+      revision: main
+      path: zephyr
+      import: true
+  self:
+    path: .