Merge pull request #2282 from HiFiPhile/uac_interl

UAC IN transfer improvements

.codespell/exclude-file.txt

@@ -1 +0,0 @@
-  return USB0.INTSTS1.BIT.ATTCH ? true : false;

.codespellrc

@@ -2,9 +2,9 @@
 [codespell]
 # In the event of a false positive, add the problematic word, in all lowercase, to 'ignore-words.txt' (one word per line).
 # Or copy & paste the whole problematic line to 'exclude-file.txt'
-ignore-words = .codespell/ignore-words.txt
-exclude-file = .codespell/exclude-file.txt
+ignore-words = tools/codespell/ignore-words.txt
+exclude-file = tools/codespell/exclude-file.txt
 check-filenames =
 check-hidden =
 count =
-skip = .cproject,./.git,./hw/mcu,./lib,./examples/*/*/_build,./examples/*/*/ses,./examples/*/*/ozone,./hw/mcu,./test/unit-test/vendor,./tests_obsolete,./tools/uf2
+skip = *.rb,.cproject,.git,./lib,./examples/*/*/_build,./examples/*/*/ses,./examples/*/*/ozone,./hw/mcu,./tests_obsolete

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -60,15 +60,15 @@ body:
 
   - type: textarea
     attributes:
-      label: Debug Log as txt file
+      label: Debug Log as txt file (LOG/CFG_TUSB_DEBUG=2)
       placeholder: |
         Attach your debug log txt file here, where the issue occurred, best with comments to explain the actual events.
 
         Note1: Please DO NOT paste your lengthy log contents here since it hurts the readability.
-        Note2: To enable logging, add `LOG=3` to to the make command if building with stock examples or set `CFG_TUSB_DEBUG=3` in your tusb_config.h. 
+        Note2: To enable logging, add `LOG=2` to to the make command if building with stock examples or set `CFG_TUSB_DEBUG=2` in your tusb_config.h.
         More information can be found at [example's readme](https://github.com/hathach/tinyusb/blob/master/docs/getting_started.md)
     validations:
-      required: false
+      required: true
 
   - type: textarea
     attributes:

.github/workflows/build_aarch64.yml

@@ -1,6 +1,7 @@
 name: Build AArch64
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'src/**'
@@ -42,9 +43,6 @@ jobs:
     - name: Checkout TinyUSB
       uses: actions/checkout@v3
 
-    - name: Checkout common submodules in lib
-      run: git submodule update --init lib/FreeRTOS-Kernel lib/lwip lib/sct_neopixel
-
     - name: Checkout hathach/linkermap
       uses: actions/checkout@v3
       with:
@@ -72,7 +70,7 @@ jobs:
       run: echo >> $GITHUB_PATH `echo ~/cache/toolchain/*/bin`
 
     - name: Get Dependencies
-      run: python3 tools/get_dependencies.py ${{ matrix.family }}
+      run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
       run: python3 tools/build_family.py ${{ matrix.family }}

.github/workflows/build_arm.yml

@@ -1,6 +1,7 @@
 name: Build ARM
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'src/**'
@@ -33,29 +34,14 @@ jobs:
         family:
         # Alphabetical order
         - 'broadcom_32bit'
-        - 'imxrt'
-        - 'lpc15'
-        - 'lpc18'
-        - 'lpc54'
-        - 'lpc55'
-        - 'mm32'
-        - 'msp432e4'
-        - 'nrf'
-        - 'rp2040'
-        - 'samd11'
-        - 'samd21'
-        - 'samd51'
-        - 'saml2x'
-        - 'stm32f0'
-        - 'stm32f1'
-        - 'stm32f4'
-        - 'stm32f7'
-        - 'stm32g4'
-        - 'stm32h7'
-        - 'stm32l4'
-        - 'stm32wb'
-        - 'tm4c123'
-        - 'xmc4000'
+        - 'kinetis_k32l2'
+        - 'lpc11 lpc13 lpc15 lpc17'
+        - 'lpc51'
+        - 'mm32 msp432e4'
+        - 'samd11 same5x saml2x'
+        - 'stm32f2 stm32f3'
+        - 'stm32l0 stm32wb'
+        - 'tm4c123 xmc4000'
     steps:
     - name: Setup Python
       uses: actions/setup-python@v4
@@ -70,23 +56,14 @@ jobs:
     - name: Checkout TinyUSB
       uses: actions/checkout@v3
 
-    - name: Checkout common submodules in lib
-      run: git submodule update --init lib/FreeRTOS-Kernel lib/lwip lib/sct_neopixel
-
     - name: Checkout hathach/linkermap
       uses: actions/checkout@v3
       with:
          repository: hathach/linkermap
          path: linkermap
 
-    - name: Checkout pico-sdk for rp2040
-      if: matrix.family == 'rp2040'
-      run: |
-        git clone --depth 1 -b develop https://github.com/raspberrypi/pico-sdk ~/pico-sdk
-        echo >> $GITHUB_ENV PICO_SDK_PATH=~/pico-sdk
-
     - name: Get Dependencies
-      run: python3 tools/get_dependencies.py ${{ matrix.family }}
+      run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
       run: python3 tools/build_family.py ${{ matrix.family }}
@@ -99,193 +76,3 @@ jobs:
         do
           find ${ex} -name *.map -print -quit | xargs -I % sh -c 'echo "::group::%"; linkermap -v %; echo "::endgroup::"'
         done
-
-    # Upload binaries for rp2040 hardware test with self-hosted
-    - name: Prepare rp2040 Artifacts
-      if: matrix.family == 'rp2040' && github.repository_owner == 'hathach'
-      run: find examples/ -name "*.elf" -exec mv {} . \;
-
-    - name: Upload rp2040 Artifacts
-      if: matrix.family == 'rp2040' && github.repository_owner == 'hathach'
-      uses: actions/upload-artifact@v3
-      with:
-        name: ${{ matrix.family }}
-        path: |
-          *.elf
-
-    # Upload binaries for stm32l412nucleo hardware test with self-hosted
-    - name: Prepare stm32l412nucleo Artifacts
-      if: matrix.family == 'stm32l4'
-      run: find examples/ -path "*stm32l412nucleo/*.elf" -exec mv {} . \;
-
-    - name: Upload stm32l412nucleo Artifacts
-      if: matrix.family == 'stm32l4'
-      uses: actions/upload-artifact@v3
-      with:
-        name: stm32l412nucleo
-        path: |
-          *.elf
-
-  # ---------------------------------------
-  # Build all no-family (orphaned) boards
-  # disable this workflow since it is often failed randomly
-  # ---------------------------------------
-  build-board:
-    runs-on: ubuntu-latest
-    if: false
-    strategy:
-      fail-fast: false
-      matrix:
-        example:
-        # Alphabetical order, a group of 4
-        - 'device/audio_test device/board_test device/cdc_dual_ports device/cdc_msc'
-        - 'device/cdc_msc_freertos device/dfu_runtime device/hid_composite device/hid_composite_freertos'
-        - 'device/hid_generic_inout device/hid_multiple_interface device/midi_test device/msc_dual_lun'
-        - 'device/net_lwip_webserver'
-        - 'device/uac2_headset device/usbtmc device/webusb_serial host/cdc_msc_hid'
-
-    steps:
-    - name: Setup Python
-      uses: actions/setup-python@v4
-      with:
-        python-version: '3.x'
-
-    - name: Install ARM GCC
-      uses: carlosperate/arm-none-eabi-gcc-action@v1
-      with:
-        release: '11.2-2022.02'
-
-    - name: Checkout TinyUSB
-      uses: actions/checkout@v3
-
-    - name: Checkout common submodules in lib
-      run: git submodule update --init lib/FreeRTOS-Kernel lib/lwip
-
-    - name: Build
-      run: python3 tools/build_board.py ${{ matrix.example }}
-
-  # ---------------------------------------
-  # Hardware in the loop (HIL)
-  # Current self-hosted instance is running on an RPI4 with
-  # - pico + pico-probe connected via USB
-  # - pico-probe is /dev/ttyACM0
-  # ---------------------------------------
-  hw-rp2040-test:
-    # run only with hathach's commit due to limited resource on RPI4
-    if: github.repository_owner == 'hathach'
-    needs: build-arm
-    runs-on: [self-hosted, Linux, ARM64, rp2040]
-
-    steps:
-    - name: Clean workspace
-      run: |
-        echo "Cleaning up previous run"
-        rm -rf "${{ github.workspace }}"
-        mkdir -p "${{ github.workspace }}"
-
-    - name: Download rp2040 Artifacts
-      uses: actions/download-artifact@v3
-      with:
-        name: rp2040
-
-    - name: Create flash.sh
-      run: |
-        #echo > flash.sh 'cmdout=$(openocd -f "interface/picoprobe.cfg" -f "target/rp2040.cfg" -c "program $1 reset exit")'
-        echo > flash.sh 'pyocd flash -t rp2040 $1'
-        echo >> flash.sh 'if (( $? )) ; then echo $cmdout ; fi'
-        chmod +x flash.sh
-
-    - name: Test cdc_dual_ports
-      run: |
-        ./flash.sh cdc_dual_ports.elf
-        while (! ([ -e /dev/ttyACM1 ] && [ -e /dev/ttyACM2 ])) && [ $SECONDS -le 10 ]; do :; done
-        test -e /dev/ttyACM1 && echo "ttyACM1 exists"
-        test -e /dev/ttyACM2 && echo "ttyACM2 exists"
-
-    - name: Test cdc_msc
-      run: |
-        ./flash.sh cdc_msc.elf
-        readme='/media/pi/TinyUSB MSC/README.TXT'
-        while (! ([ -e /dev/ttyACM1 ] && [ -f "$readme" ])) && [ $SECONDS -le 10 ]; do :; done
-        test -e /dev/ttyACM1 && echo "ttyACM1 exists"
-        test -f "$readme" && echo "$readme exists"
-        cat "$readme"
-
-    - name: Test dfu
-      run: |
-        ./flash.sh dfu.elf
-        while (! (dfu-util -l | grep "Found DFU")) && [ $SECONDS -le 10 ]; do :; done
-        dfu-util -d cafe -a 0 -U dfu0
-        dfu-util -d cafe -a 1 -U dfu1
-        grep "TinyUSB DFU! - Partition 0" dfu0
-        grep "TinyUSB DFU! - Partition 1" dfu1
-
-    - name: Test dfu_runtime
-      run: |
-        ./flash.sh dfu_runtime.elf
-        while (! (dfu-util -l | grep "Found Runtime")) && [ $SECONDS -le 10 ]; do :; done
-
-  # ---------------------------------------
-  # Hardware in the loop (HIL)
-  # Current self-hosted instance is running on an EPYC 7232 server hosted by HiFiPhile user
-  # - STM32L412 Nucleo with on-board jlink as ttyACM0
-  # ---------------------------------------
-  hw-stm32l412nucleo-test:
-    needs: build-arm
-    runs-on: [self-hosted, Linux, X64, hifiphile]
-
-    steps:
-    - name: Clean workspace
-      run: |
-        echo "Cleaning up previous run"
-        rm -rf "${{ github.workspace }}"
-        mkdir -p "${{ github.workspace }}"
-
-    - name: Download stm32l4 Artifacts
-      uses: actions/download-artifact@v3
-      with:
-        name: stm32l412nucleo
-
-    - name: Create flash.sh
-      run: |
-        echo > flash.sh 'echo halt > flash.jlink'
-        echo >> flash.sh 'echo r >> flash.jlink'
-        echo >> flash.sh 'echo loadfile $1 >> flash.jlink'
-        echo >> flash.sh 'echo r >> flash.jlink'
-        echo >> flash.sh 'echo go >> flash.jlink'
-        echo >> flash.sh 'echo exit >> flash.jlink'
-        echo >> flash.sh 'cmdout=$(JLinkExe -device stm32l412kb -if swd -JTAGConf -1,-1 -speed auto -NoGui 1 -ExitOnError 1 -CommandFile flash.jlink)'
-        echo >> flash.sh 'if (( $? )) ; then echo $cmdout ; fi'
-        chmod +x flash.sh
-
-    - name: Test cdc_dual_ports
-      run: |
-        ./flash.sh cdc_dual_ports.elf
-        while (! ([ -e /dev/ttyACM1 ] && [ -e /dev/ttyACM2 ])) && [ $SECONDS -le 10 ]; do :; done
-        test -e /dev/ttyACM1 && echo "ttyACM1 exists"
-        test -e /dev/ttyACM2 && echo "ttyACM2 exists"
-
-      # Debian does not auto mount usb drive. skip this test for now
-    - name: Test cdc_msc
-      if: false
-      run: |
-        ./flash.sh cdc_msc.elf
-        readme='/media/pi/TinyUSB MSC/README.TXT'
-        while (! ([ -e /dev/ttyACM1 ] && [ -f "$readme" ])) && [ $SECONDS -le 10 ]; do :; done
-        test -e /dev/ttyACM1 && echo "ttyACM1 exists"
-        test -f "$readme" && echo "$readme exists"
-        cat "$readme"
-
-    - name: Test dfu
-      run: |
-        ./flash.sh dfu.elf
-        while (! (dfu-util -l | grep "Found DFU")) && [ $SECONDS -le 10 ]; do :; done
-        dfu-util -d cafe -a 0 -U dfu0
-        dfu-util -d cafe -a 1 -U dfu1
-        grep "TinyUSB DFU! - Partition 0" dfu0
-        grep "TinyUSB DFU! - Partition 1" dfu1
-
-    - name: Test dfu_runtime
-      run: |
-        ./flash.sh dfu_runtime.elf
-        while (! (dfu-util -l | grep "Found Runtime")) && [ $SECONDS -le 10 ]; do :; done  

.github/workflows/build_esp.yml

@@ -1,6 +1,7 @@
 name: Build ESP
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'src/**'
@@ -28,12 +29,10 @@ jobs:
       fail-fast: false
       matrix:
         board:
-        # Alphabetical order
         # ESP32-S2
-        - 'espressif_saola_1'
+        - 'espressif_kaluga_1'
         # ESP32-S3
-        #- 'espressif_s3_devkitm'
-        # S3 compile error with "dangerous relocation: call8: call target out of range: memcpy"
+        - 'espressif_s3_devkitm'
 
     steps:
     - name: Setup Python
@@ -47,20 +46,5 @@ jobs:
     - name: Checkout TinyUSB
       uses: actions/checkout@v3
 
-    - name: Checkout hathach/linkermap
-      uses: actions/checkout@v3
-      with:
-         repository: hathach/linkermap
-         path: linkermap
-
     - name: Build
-      run: docker run --rm -v $PWD:/project -w /project espressif/idf:latest python3 tools/build_esp32sx.py ${{ matrix.board }}
-
-    - name: Linker Map
-      run: |
-        pip install linkermap/
-        # find -quit to only print linkermap of 1 board per example
-        for ex in `ls -d examples/device/*/`
-        do
-          find ${ex} -maxdepth 3 -name *.map -print -quit | xargs -I % sh -c 'echo "::group::%"; linkermap -v %; echo "::endgroup::"'
-        done
+      run: docker run --rm -v $PWD:/project -w /project espressif/idf:latest python3 tools/build_esp32.py ${{ matrix.board }}

.github/workflows/build_iar.yml

@@ -1,6 +1,7 @@
 name: Build IAR
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'src/**'
@@ -22,36 +23,32 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build-arm:
+  cmake:
     runs-on: [self-hosted, Linux, X64, hifiphile]
     strategy:
       fail-fast: false
       matrix:
         family:
-        # Alphabetical order
-        # Note: bundle multiple families into a matrix since there is only one self-hosted instance can
-        # run IAR build. Too many matrix can hurt due to setup/teardown overhead. 
-        - 'stm32f0 stm32f1 stm32f4 stm32f7 stm32g4 stm32h7 stm32l4'
+          # Alphabetical order
+          # Note: bundle multiple families into a matrix since there is only one self-hosted instance can
+          # run IAR build. Too many matrix can hurt due to setup/teardown overhead.
+          - 'lpc43 stm32f0 stm32f1 stm32f4 stm32f7 stm32g0 stm32g4 stm32h7 stm32l4'
     steps:
-    - name: Clean workspace
-      run: |
-        echo "Cleaning up previous run"
-        rm -rf "${{ github.workspace }}"
-        mkdir -p "${{ github.workspace }}"
+      - name: Clean workspace
+        run: |
+          echo "Cleaning up previous run"
+          rm -rf "${{ github.workspace }}"
+          mkdir -p "${{ github.workspace }}"
 
-    - name: Checkout TinyUSB
-      uses: actions/checkout@v3
+      - name: Checkout TinyUSB
+        uses: actions/checkout@v3
 
-    - name: Checkout submodules and dependencies
-      run: |
-        git submodule update --init lib/FreeRTOS-Kernel lib/lwip lib/sct_neopixel
-        python3 tools/get_dependencies.py ${{ matrix.family }}
+      - name: Get Dependencies
+        run: python3 tools/get_deps.py ${{ matrix.family }}
 
-    #- name: Checkout pico-sdk for rp2040
-    #  if: matrix.family == 'rp2040'
-    #  run: |
-    #    git clone --depth 1 -b develop https://github.com/raspberrypi/pico-sdk ~/pico-sdk
-    #    echo >> $GITHUB_ENV PICO_SDK_PATH=~/pico-sdk
+      - name: Build
+        run: python3 tools/build_cmake.py ${{ matrix.family }} -DTOOLCHAIN=iar -DCMAKE_BUILD_TYPE=MinSizeRel
 
-    - name: Build
-      run: python3 tools/build_family.py ${{ matrix.family }} CC=iccarm
+      - name: Test on actual hardware (hardware in the loop)
+        run: |
+          python3 test/hil/hil_test.py hil_hfp.json

.github/workflows/build_msp430.yml

@@ -1,6 +1,7 @@
 name: Build MSP430
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'src/**'
@@ -40,9 +41,6 @@ jobs:
     - name: Checkout TinyUSB
       uses: actions/checkout@v3
 
-    - name: Checkout common submodules in lib
-      run: git submodule update --init lib/FreeRTOS-Kernel lib/lwip
-
     - name: Checkout hathach/linkermap
       uses: actions/checkout@v3
       with:
@@ -70,7 +68,7 @@ jobs:
       run: echo >> $GITHUB_PATH `echo ~/cache/toolchain/*/bin`
 
     - name: Get Dependencies
-      run: python3 tools/get_dependencies.py ${{ matrix.family }}
+      run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
       run: python3 tools/build_family.py ${{ matrix.family }}

.github/workflows/build_renesas.yml

@@ -1,6 +1,7 @@
 name: Build Renesas
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'src/**'
@@ -39,9 +40,6 @@ jobs:
     - name: Checkout TinyUSB
       uses: actions/checkout@v3
 
-    - name: Checkout common submodules in lib
-      run: git submodule update --init lib/FreeRTOS-Kernel lib/lwip
-
     - name: Checkout hathach/linkermap
       uses: actions/checkout@v3
       with:
@@ -70,7 +68,7 @@ jobs:
       run: echo >> $GITHUB_PATH `echo ~/cache/toolchain/*/bin`
 
     - name: Get Dependencies
-      run: python3 tools/get_dependencies.py ${{ matrix.family }}
+      run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
       run: python3 tools/build_family.py ${{ matrix.family }}

.github/workflows/build_riscv.yml

@@ -1,6 +1,7 @@
 name: Build RISC-V
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'src/**'
@@ -41,9 +42,6 @@ jobs:
     - name: Checkout TinyUSB
       uses: actions/checkout@v3
 
-    - name: Checkout common submodules in lib
-      run: git submodule update --init lib/FreeRTOS-Kernel lib/lwip
-
     - name: Checkout hathach/linkermap
       uses: actions/checkout@v3
       with:
@@ -71,7 +69,7 @@ jobs:
       run: echo >> $GITHUB_PATH `echo ~/cache/toolchain/*/bin`
 
     - name: Get Dependencies
-      run: python3 tools/get_dependencies.py ${{ matrix.family }}
+      run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
       run: python3 tools/build_family.py ${{ matrix.family }}

.github/workflows/build_win_mac.yml

@@ -0,0 +1,54 @@
+name: Build Windows/MacOS
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
+      - '.github/workflows/build_win_mac.yml'
+  pull_request:
+    branches: [ master ]
+    paths:
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
+      - '.github/workflows/build_win_mac.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  # ---------------------------------------
+  # Build ARM family
+  # ---------------------------------------
+  build-arm:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+
+    - name: Install ARM GCC
+      uses: carlosperate/arm-none-eabi-gcc-action@v1
+      with:
+        release: '10.3-2021.10'
+
+    - name: Checkout TinyUSB
+      uses: actions/checkout@v3
+
+    - name: Get Dependencies
+      run: python3 tools/get_deps.py stm32f4
+
+    - name: Build
+      run: python3 tools/build_family.py stm32f4 stm32f411disco

.github/workflows/cifuzz.yml

@@ -1,5 +1,6 @@
 name: CIFuzz
 on:
+  workflow_dispatch:
   pull_request:
     branches:
       - master

.github/workflows/cmake_arm.yml

@@ -0,0 +1,164 @@
+name: CMake ARM
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
+      - '.github/workflows/cmake_arm.yml'
+  pull_request:
+    branches: [ master ]
+    paths:
+      - 'src/**'
+      - 'examples/**'
+      - 'lib/**'
+      - 'hw/**'
+      - '.github/workflows/cmake_arm.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  # ---------------------------------------
+  # Build ARM family
+  # ---------------------------------------
+  build-arm:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        family:
+          # Alphabetical order
+          - 'imxrt'
+          - 'kinetis_kl'
+          - 'lpc18 lpc40 lpc43'
+          - 'lpc54 lpc55'
+          - 'mcx'
+          - 'nrf'
+          - 'ra'
+          - 'rp2040'
+          - 'samd21'
+          - 'samd51'
+          - 'stm32f0'
+          - 'stm32f1'
+          - 'stm32f4'
+          - 'stm32f7'
+          - 'stm32g0'
+          - 'stm32g4'
+          - 'stm32h7'
+          - 'stm32l4'
+          - 'stm32u5'
+    steps:
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+
+    - name: Install ARM GCC
+      uses: carlosperate/arm-none-eabi-gcc-action@v1
+      with:
+        release: '11.2-2022.02'
+
+    - name: Install Ninja
+      run: sudo apt install -y ninja-build
+
+    - name: Checkout TinyUSB
+      uses: actions/checkout@v3
+
+    - name: Checkout pico-sdk for rp2040
+      if: matrix.family == 'rp2040'
+      uses: actions/checkout@v3
+      with:
+        repository: raspberrypi/pico-sdk
+        ref: develop
+        path: pico-sdk
+
+    - name: Get Dependencies
+      run: python3 tools/get_deps.py ${{ matrix.family }}
+
+    - name: Build
+      run: python tools/build_cmake.py ${{ matrix.family }} -DCMAKE_BUILD_TYPE=MinSizeRel
+      env:
+        # for rp2040, there is no harm if defined for other families
+        PICO_SDK_PATH: ${{ github.workspace }}/pico-sdk
+
+    # Upload binaries for hardware test with self-hosted
+    - name: Prepare rp2040 Artifacts
+      if: contains(matrix.family, 'rp2040') && github.repository_owner == 'hathach'
+      working-directory: ${{github.workspace}}/cmake-build/cmake-build-raspberry_pi_pico
+      run: |
+        find device/ -name "*.elf" -exec mv {} ../../ \;
+        # find host/ -name "*.elf" -exec mv {} ../../ \;
+        # find dual/ -name "*.elf" -exec mv {} ../../ \;
+
+    - name: Upload Artifacts for rp2040
+      if: contains(matrix.family,'rp2040') && github.repository_owner == 'hathach'
+      uses: actions/upload-artifact@v3
+      with:
+        name: rp2040
+        path: |
+          *.elf
+
+  # ---------------------------------------
+  # Hardware in the loop (HIL)
+  # Current self-hosted instance is running on an RPI4 with
+  # - pico + pico-probe connected via USB
+  # - pico-probe is /dev/ttyACM0
+  # ---------------------------------------
+  hw-rp2040-test:
+    # run only with hathach's commit due to limited resource on RPI4
+    if: github.repository_owner == 'hathach'
+    needs: build-arm
+    runs-on: [self-hosted, Linux, ARM64, rp2040]
+
+    steps:
+      - name: Clean workspace
+        run: |
+          echo "Cleaning up previous run"
+          rm -rf "${{ github.workspace }}"
+          mkdir -p "${{ github.workspace }}"
+
+      - name: Download rp2040 Artifacts
+        uses: actions/download-artifact@v3
+        with:
+          name: rp2040
+
+      - name: Create flash.sh
+        run: |
+          echo > flash.sh 'cmdout=$(openocd -f "interface/cmsis-dap.cfg" -f "target/rp2040.cfg" -c "adapter speed 5000" -c "program $1 reset exit")'
+          echo >> flash.sh 'if (( $? )) ; then echo $cmdout ; fi'
+          chmod +x flash.sh
+
+      - name: Test cdc_dual_ports
+        run: |
+          ./flash.sh cdc_dual_ports.elf
+          while (! ([ -e /dev/ttyACM1 ] && [ -e /dev/ttyACM2 ])) && [ $SECONDS -le 10 ]; do :; done
+          test -e /dev/ttyACM1 && echo "ttyACM1 exists"
+          test -e /dev/ttyACM2 && echo "ttyACM2 exists"
+
+      - name: Test cdc_msc
+        run: |
+          ./flash.sh cdc_msc.elf
+          readme='/media/pi/TinyUSB MSC/README.TXT'
+          while (! ([ -e /dev/ttyACM1 ] && [ -f "$readme" ])) && [ $SECONDS -le 10 ]; do :; done
+          test -e /dev/ttyACM1 && echo "ttyACM1 exists"
+          test -f "$readme" && echo "$readme exists"
+          cat "$readme"
+
+      - name: Test dfu
+        run: |
+          ./flash.sh dfu.elf
+          while (! (dfu-util -l | grep "Found DFU")) && [ $SECONDS -le 10 ]; do :; done
+          dfu-util -d cafe -a 0 -U dfu0
+          dfu-util -d cafe -a 1 -U dfu1
+          grep "TinyUSB DFU! - Partition 0" dfu0
+          grep "TinyUSB DFU! - Partition 1" dfu1
+
+      - name: Test dfu_runtime
+        run: |
+          ./flash.sh dfu_runtime.elf
+          while (! (dfu-util -l | grep "Found Runtime")) && [ $SECONDS -le 10 ]; do :; done

.github/workflows/pre-commit.yml

@@ -1,6 +1,7 @@
 name: pre-commit
 
 on:
+  workflow_dispatch:
   push:
   pull_request:
     branches: [ master ]
@@ -26,15 +27,14 @@ jobs:
     - name: Checkout TinyUSB
       uses: actions/checkout@v3
 
-    - name: Run codespell
-      uses: codespell-project/actions-codespell@master
-
-    - name: Run Unit Tests
+    - name: Get Dependencies
       run: |
-        # Install Ceedling
         gem install ceedling
-        cd test/unit-test
-        ceedling test:all
+        #cd test/unit-test
+        #ceedling test:all
+
+    - name: Run pre-commit
+      uses: pre-commit/action@v3.0.0
 
     - name: Build Fuzzer
       run: |

.github/workflows/trigger.yml

@@ -1,6 +1,7 @@
 name: Trigger Repos
 
 on:
+  workflow_dispatch:
   push:
     branches: master
   release:
@@ -55,6 +56,5 @@ jobs:
         git push origin ${{ github.event.release.tag_name }}
 
         # Send POST reqwuest to release https://docs.github.com/en/rest/reference/repos#create-a-release
-        bb={{ github.event.release.body }}
-        bb=${bb//\n/\\\n}
+        bb="For release note, please checkout https://github.com/hathach/tinyusb/releases/tag/${{ github.event.release.tag_name }}"
         curl -X POST -H "Authorization: token ${{ secrets.API_TOKEN_GITHUB }}" -H "Accept: application/vnd.github.v3+json" --data '{"tag_name": "${{ github.event.release.tag_name }}", "name": "${{ github.event.release.name }}", "body": "$bb", "draft": ${{ github.event.release.draft }}, "prerelease": ${{ github.event.release.prerelease }}}' https://api.github.com/repos/hathach/tinyusb_src/releases

.gitignore

@@ -12,7 +12,7 @@ latex
 *.ind
 .env
 .settings/
-.idea/
+.vscode/
 .gdb_history
 /examples/*/*/build*
 test_old/
@@ -21,10 +21,68 @@ _build
 /examples/*/*/ses
 /examples/*/*/ozone
 /examples/obsolete
+hw/bsp/**/cubemx/*/
+.mxproject
 # coverity intermediate files
 cov-int
 # cppcheck build directories
 *-build-dir
 /_bin/
 __pycache__
+cmake-build-*
+sdkconfig
 
+# submodules
+hw/mcu/allwinner
+hw/mcu/bridgetek/ft9xx/ft90x-sdk
+hw/mcu/broadcom
+hw/mcu/gd/nuclei-sdk
+hw/mcu/infineon/mtb-xmclib-cat3
+hw/mcu/microchip
+hw/mcu/mindmotion/mm32sdk
+hw/mcu/nordic/nrfx
+hw/mcu/nuvoton
+hw/mcu/nxp/lpcopen
+hw/mcu/nxp/mcux-sdk
+hw/mcu/nxp/nxp_sdk
+hw/mcu/raspberry_pi/Pico-PIO-USB
+hw/mcu/renesas/rx
+hw/mcu/silabs/cmsis-dfp-efm32gg12b
+hw/mcu/sony/cxd56/spresense-exported-sdk
+hw/mcu/st/cmsis_device_f0
+hw/mcu/st/cmsis_device_f1
+hw/mcu/st/cmsis_device_f2
+hw/mcu/st/cmsis_device_f3
+hw/mcu/st/cmsis_device_f4
+hw/mcu/st/cmsis_device_f7
+hw/mcu/st/cmsis_device_g0
+hw/mcu/st/cmsis_device_g4
+hw/mcu/st/cmsis_device_h7
+hw/mcu/st/cmsis_device_l0
+hw/mcu/st/cmsis_device_l1
+hw/mcu/st/cmsis_device_l4
+hw/mcu/st/cmsis_device_l5
+hw/mcu/st/cmsis_device_u5
+hw/mcu/st/cmsis_device_wb
+hw/mcu/st/stm32f0xx_hal_driver
+hw/mcu/st/stm32f1xx_hal_driver
+hw/mcu/st/stm32f2xx_hal_driver
+hw/mcu/st/stm32f3xx_hal_driver
+hw/mcu/st/stm32f4xx_hal_driver
+hw/mcu/st/stm32f7xx_hal_driver
+hw/mcu/st/stm32g0xx_hal_driver
+hw/mcu/st/stm32g4xx_hal_driver
+hw/mcu/st/stm32h7xx_hal_driver
+hw/mcu/st/stm32l0xx_hal_driver
+hw/mcu/st/stm32l1xx_hal_driver
+hw/mcu/st/stm32l4xx_hal_driver
+hw/mcu/st/stm32l5xx_hal_driver
+hw/mcu/st/stm32u5xx_hal_driver
+hw/mcu/st/stm32wbxx_hal_driver
+hw/mcu/ti
+hw/mcu/wch/ch32v307
+lib/CMSIS_5
+lib/FreeRTOS-Kernel
+lib/lwip
+lib/sct_neopixel
+tools/uf2

.gitmodules

@@ -1,160 +0,0 @@
-[submodule "hw/mcu/nordic/nrfx"]
-	path = hw/mcu/nordic/nrfx
-	url = https://github.com/NordicSemiconductor/nrfx.git
-[submodule "tools/uf2"]
-	path = tools/uf2
-	url = https://github.com/microsoft/uf2.git
-[submodule "hw/mcu/sony/cxd56/spresense-exported-sdk"]
-	path = hw/mcu/sony/cxd56/spresense-exported-sdk
-	url = https://github.com/sonydevworld/spresense-exported-sdk.git
-[submodule "hw/mcu/ti"]
-	path = hw/mcu/ti
-	url = https://github.com/hathach/ti_driver.git
-[submodule "hw/mcu/microchip"]
-	path = hw/mcu/microchip
-	url = https://github.com/hathach/microchip_driver.git
-[submodule "hw/mcu/nuvoton"]
-	path = hw/mcu/nuvoton
-	url = https://github.com/majbthrd/nuc_driver.git
-[submodule "lib/lwip"]
-	path = lib/lwip
-	url = https://github.com/lwip-tcpip/lwip.git
-[submodule "hw/mcu/st/cmsis_device_f4"]
-	path = hw/mcu/st/cmsis_device_f4
-	url = https://github.com/STMicroelectronics/cmsis_device_f4.git
-[submodule "hw/mcu/st/stm32f4xx_hal_driver"]
-	path = hw/mcu/st/stm32f4xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32f4xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_f0"]
-	path = hw/mcu/st/cmsis_device_f0
-	url = https://github.com/STMicroelectronics/cmsis_device_f0.git
-[submodule "hw/mcu/st/stm32f0xx_hal_driver"]
-	path = hw/mcu/st/stm32f0xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32f0xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_f1"]
-	path = hw/mcu/st/cmsis_device_f1
-	url = https://github.com/STMicroelectronics/cmsis_device_f1.git
-[submodule "hw/mcu/st/stm32f1xx_hal_driver"]
-	path = hw/mcu/st/stm32f1xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32f1xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_f2"]
-	path = hw/mcu/st/cmsis_device_f2
-	url = https://github.com/STMicroelectronics/cmsis_device_f2.git
-[submodule "hw/mcu/st/stm32f2xx_hal_driver"]
-	path = hw/mcu/st/stm32f2xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32f2xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_f3"]
-	path = hw/mcu/st/cmsis_device_f3
-	url = https://github.com/STMicroelectronics/cmsis_device_f3.git
-[submodule "hw/mcu/st/stm32f3xx_hal_driver"]
-	path = hw/mcu/st/stm32f3xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32f3xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_f7"]
-	path = hw/mcu/st/cmsis_device_f7
-	url = https://github.com/STMicroelectronics/cmsis_device_f7.git
-[submodule "hw/mcu/st/stm32f7xx_hal_driver"]
-	path = hw/mcu/st/stm32f7xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32f7xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_h7"]
-	path = hw/mcu/st/cmsis_device_h7
-	url = https://github.com/STMicroelectronics/cmsis_device_h7.git
-[submodule "hw/mcu/st/stm32h7xx_hal_driver"]
-	path = hw/mcu/st/stm32h7xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32h7xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_l0"]
-	path = hw/mcu/st/cmsis_device_l0
-	url = https://github.com/STMicroelectronics/cmsis_device_l0.git
-[submodule "hw/mcu/st/stm32l0xx_hal_driver"]
-	path = hw/mcu/st/stm32l0xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32l0xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_l1"]
-	path = hw/mcu/st/cmsis_device_l1
-	url = https://github.com/STMicroelectronics/cmsis_device_l1.git
-[submodule "hw/mcu/st/stm32l1xx_hal_driver"]
-	path = hw/mcu/st/stm32l1xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32l1xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_l4"]
-	path = hw/mcu/st/cmsis_device_l4
-	url = https://github.com/STMicroelectronics/cmsis_device_l4.git
-[submodule "hw/mcu/st/stm32l4xx_hal_driver"]
-	path = hw/mcu/st/stm32l4xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32l4xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_g0"]
-	path = hw/mcu/st/cmsis_device_g0
-	url = https://github.com/STMicroelectronics/cmsis_device_g0.git
-[submodule "hw/mcu/st/stm32g0xx_hal_driver"]
-	path = hw/mcu/st/stm32g0xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32g0xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_g4"]
-	path = hw/mcu/st/cmsis_device_g4
-	url = https://github.com/STMicroelectronics/cmsis_device_g4.git
-[submodule "hw/mcu/st/stm32g4xx_hal_driver"]
-	path = hw/mcu/st/stm32g4xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32g4xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_l5"]
-	path = hw/mcu/st/cmsis_device_l5
-	url = https://github.com/STMicroelectronics/cmsis_device_l5.git
-[submodule "hw/mcu/st/stm32l5xx_hal_driver"]
-	path = hw/mcu/st/stm32l5xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32l5xx_hal_driver.git
-[submodule "hw/mcu/st/cmsis_device_wb"]
-	path = hw/mcu/st/cmsis_device_wb
-	url = https://github.com/STMicroelectronics/cmsis_device_wb.git
-[submodule "hw/mcu/st/stm32wbxx_hal_driver"]
-	path = hw/mcu/st/stm32wbxx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32wbxx_hal_driver.git
-[submodule "lib/sct_neopixel"]
-	path = lib/sct_neopixel
-	url = https://github.com/gsteiert/sct_neopixel
-[submodule "lib/FreeRTOS-Kernel"]
-	path = lib/FreeRTOS-Kernel
-	url = https://github.com/FreeRTOS/FreeRTOS-Kernel.git
-[submodule "lib/CMSIS_5"]
-	path = lib/CMSIS_5
-	url = https://github.com/ARM-software/CMSIS_5.git
-[submodule "hw/mcu/silabs/cmsis-dfp-efm32gg12b"]
-	path = hw/mcu/silabs/cmsis-dfp-efm32gg12b
-	url = https://github.com/cmsis-packs/cmsis-dfp-efm32gg12b
-[submodule "hw/mcu/renesas/rx"]
-	path = hw/mcu/renesas/rx
-	url = https://github.com/kkitayam/rx_device.git
-[submodule "hw/mcu/nxp/lpcopen"]
-	path = hw/mcu/nxp/lpcopen
-	url = https://github.com/hathach/nxp_lpcopen.git
-[submodule "hw/mcu/nxp/mcux-sdk"]
-	path = hw/mcu/nxp/mcux-sdk
-	url = https://github.com/NXPmicro/mcux-sdk.git
-[submodule "hw/mcu/nxp/nxp_sdk"]
-	path = hw/mcu/nxp/nxp_sdk
-	url = https://github.com/hathach/nxp_sdk.git
-[submodule "hw/mcu/gd/nuclei-sdk"]
-	path = hw/mcu/gd/nuclei-sdk
-	url = https://github.com/Nuclei-Software/nuclei-sdk.git
-[submodule "hw/mcu/bridgetek/ft9xx/ft90x-sdk"]
-	path = hw/mcu/bridgetek/ft9xx/ft90x-sdk
-	url = https://github.com/BRTSG-FOSS/ft90x-sdk
-[submodule "hw/mcu/mindmotion/mm32sdk"]
-	path = hw/mcu/mindmotion/mm32sdk
-	url = https://github.com/hathach/mm32sdk.git
-[submodule "hw/mcu/broadcom"]
-	path = hw/mcu/broadcom
-	url = https://github.com/adafruit/broadcom-peripherals.git
-	branch = main-build
-[submodule "hw/mcu/infineon/mtb-xmclib-cat3"]
-	path = hw/mcu/infineon/mtb-xmclib-cat3
-	url = https://github.com/Infineon/mtb-xmclib-cat3.git
-[submodule "hw/mcu/allwinner"]
-	path = hw/mcu/allwinner
-	url = https://github.com/hathach/allwinner_driver.git
-[submodule "hw/mcu/wch/ch32v307"]
-	path = hw/mcu/wch/ch32v307
-	url = https://github.com/openwch/ch32v307.git
-[submodule "hw/mcu/raspberry_pi/Pico-PIO-USB"]
-	path = hw/mcu/raspberry_pi/Pico-PIO-USB
-	url = https://github.com/sekigon-gonnoc/Pico-PIO-USB.git
-[submodule "hw/mcu/st/cmsis_device_u5"]
-	path = hw/mcu/st/cmsis_device_u5
-	url = https://github.com/STMicroelectronics/cmsis_device_u5
-[submodule "hw/mcu/st/stm32u5xx_hal_driver"]
-	path = hw/mcu/st/stm32u5xx_hal_driver
-	url = https://github.com/STMicroelectronics/stm32u5xx_hal_driver

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/cmake.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CMakeSharedSettings">
+    <configurations>
+      <configuration PROFILE_NAME="esp32s2" ENABLED="false" TOOLCHAIN_NAME="ESP-IDF" GENERATION_OPTIONS="-DBOARD=espressif_saola_1">
+        <ADDITIONAL_GENERATION_ENVIRONMENT>
+          <envs>
+            <env name="ESPBAUD" value="1500000" />
+          </envs>
+        </ADDITIONAL_GENERATION_ENVIRONMENT>
+      </configuration>
+      <configuration PROFILE_NAME="kaluga" ENABLED="false" TOOLCHAIN_NAME="ESP-IDF" GENERATION_OPTIONS="-DBOARD=espressif_kaluga_1 -DMAX3421_HOST=1 -DLOG=2">
+        <ADDITIONAL_GENERATION_ENVIRONMENT>
+          <envs>
+            <env name="ESPBAUD" value="1500000" />
+          </envs>
+        </ADDITIONAL_GENERATION_ENVIRONMENT>
+      </configuration>
+      <configuration PROFILE_NAME="esp32s3" ENABLED="false" TOOLCHAIN_NAME="ESP-IDF" GENERATION_OPTIONS="-DBOARD=espressif_s3_devkitm">
+        <ADDITIONAL_GENERATION_ENVIRONMENT>
+          <envs>
+            <env name="ESPBAUD" value="1500000" />
+          </envs>
+        </ADDITIONAL_GENERATION_ENVIRONMENT>
+      </configuration>
+      <configuration PROFILE_NAME="rp2040" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberry_pi_pico -DLOG=2" />
+      <configuration PROFILE_NAME="feather_rp2040" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=pico_sdk -DPICO_BOARD=adafruit_feather_rp2040" />
+      <configuration PROFILE_NAME="metro m7 1011" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=metro_m7_1011 -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="rt1010 evk" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=mimxrt1010_evk -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="rt1060 evk" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=mimxrt1060_evk -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="mcb1800" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=mcb1800 -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="ea4088 quickstart" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ea4088_quickstart -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="ea4357" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ea4357 -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="lpc54628" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=lpcxpresso54628 -DLOG=4 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="lpc55s69" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=lpcxpresso55s69 -DLOG=4 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="mcxn947" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=mcxn947brk -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="feather_nrf52840_express" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=feather_nrf52840_express -DLOG=3 -DLOGGER=RTT -DMAX3421_HOST=1" />
+      <configuration PROFILE_NAME="pca10056" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=pca10056 -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="pca10095" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=pca10095 -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="stm32g0b1nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32g0b1nucleo" />
+      <configuration PROFILE_NAME="stm32g474nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32g474nucleo" />
+      <configuration PROFILE_NAME="b_g474e_dpow1" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=b_g474e_dpow1 -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="b_g474e_dpow1 iar" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=b_g474e_dpow1 -DTOOLCHAIN=iar" />
+      <configuration PROFILE_NAME="frdm_kl25z" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=frdm_kl25z -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="stm32f072disco" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32f072disco" />
+      <configuration PROFILE_NAME="stm32f103_mini_2" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32f103_mini_2" />
+      <configuration PROFILE_NAME="stm32f411disco" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32f411disco -DLOG=2 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="stm32f769disco" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32f769disco -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="stm32h743eval" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32h743eval -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="stm32l476disco" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32l476disco" />
+      <configuration PROFILE_NAME="ra4m1" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra4m1_ek -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="ra6m1" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra6m1_ek -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="ra6m5" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra6m5_ek -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="ra6m5 PORT0" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra6m5_ek -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1 -DPORT=0" />
+      <configuration PROFILE_NAME="uno_r4" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=uno_r4 -DLOG=4 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="portenta_c33" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=portenta_c33 -DLOG=3" />
+      <configuration PROFILE_NAME="metro_m4_express" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=metro_m4_express -DLOG=3 -DLOGGER=RTT -DMAX3421_HOST=1" />
+      <configuration PROFILE_NAME="metro_m0_express" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=metro_m0_express -DLOG=3 -DLOGGER=RTT -DMAX3421_HOST=1" />
+      <configuration PROFILE_NAME="metro esp32s2" ENABLED="false" TOOLCHAIN_NAME="ESP-IDF" GENERATION_OPTIONS="-DBOARD=adafruit_metro_esp32s2 -DMAX3421_HOST=1 -DLOG=2">
+        <ADDITIONAL_GENERATION_ENVIRONMENT>
+          <envs>
+            <env name="ESPBAUD" value="1500000" />
+          </envs>
+        </ADDITIONAL_GENERATION_ENVIRONMENT>
+      </configuration>
+      <configuration PROFILE_NAME="stm32u575eval" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32u575eval" />
+      <configuration PROFILE_NAME="stm32u575nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32u575nucleo -DLOG=3" />
+    </configurations>
+  </component>
+</project>

.idea/runConfigurations/kl25.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="kl25" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;MKL25Z128xxx4&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/lpc1857.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="lpc1857" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;lpc1857&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/lpc4088.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="lpc4088" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;lpc4088&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/lpc54628.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="lpc54628" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;LPC54628J512&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/lpc55s69.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="lpc55s69" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;lpc55s69&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/mcx947.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="mcx947" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;MCXN947_M33_0&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun -jlinkscriptfile $ProjectFileDir$/hw/bsp/mcx/debug.jlinkscript" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/nrf52840.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="nrf52840" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-select usb=752001685 -device &quot;nrf52840_xxaa&quot; -if swd -speed 8000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/nrf5340.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="nrf5340" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-select usb=752001685 -device &quot;nrf5340_xxaa_app&quot; -if swd -speed 16000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="ALWAYS" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/ra4m1.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="ra4m1" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;R7FA4M1AB&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun -jlinkscriptfile $PROJECT_DIR$/hw/bsp/ra/debug.jlinkscript" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="ALWAYS" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/ra6m1.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="ra6m1" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;R7FA6M1AD&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun -jlinkscriptfile $PROJECT_DIR$/hw/bsp/ra/debug.jlinkscript" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="ALWAYS" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/ra6m5.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="ra6m5" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;R7FA6M5BH&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun -jlinkscriptfile $PROJECT_DIR$/hw/bsp/ra/debug.jlinkscript" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="ALWAYS" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/rp2040.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="rp2040" type="com.jetbrains.cidr.embedded.openocd.conf.type" factoryName="com.jetbrains.cidr.embedded.openocd.conf.factory" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="rp2040" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <openocd version="1" gdb-port="3333" telnet-port="4444" board-config="$PROJECT_DIR$/hw/bsp/rp2040/rp2040-openocd.cfg" reset-type="INIT" download-type="UPDATED_ONLY">
+      <debugger kind="GDB" isBundled="true" />
+    </openocd>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/rt1010.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="rt1010" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;MIMXRT1011xxx5A&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun -jlinkscriptfile $ProjectFileDir$/hw/bsp/imxrt/debug.jlinkscript" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="ALWAYS" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/rt1060.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="rt1060" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;MIMXRT1062xxx5A&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/samd21g18.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="samd21g18" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;ATSAMD21G18&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/samd51j19.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="samd51j19" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;ATSAMD51J19A&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/stlink.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="stlink" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-p 62847 -cp &quot;/opt/st/stm32cubeide_1.12.1/plugins/com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.linux64_2.0.600.202301161003/tools/bin&quot; --frequency 24000 --swd" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::62847" executable="/opt/st/stm32cubeide_1.12.1/plugins/com.st.stm32cube.ide.mcu.externaltools.stlink-gdb-server.linux64_2.0.500.202301161003/tools/bin/ST-LINK_gdbserver" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/stm32g474.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="stm32g474" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;stm32g474re&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/stm32h743.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="stm32h743" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;stm32h743xi&quot; -if swd -speed 50000 -port 25321 -nogui -singlerun" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/runConfigurations/uno_r4.xml

@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="uno_r4" type="com.jetbrains.cidr.embedded.customgdbserver.type" factoryName="com.jetbrains.cidr.embedded.customgdbserver.factory" PROGRAM_PARAMS="-device &quot;R7FA4M1AB&quot; -if swd -speed 20000 -port 25321 -nogui -singlerun -jlinkscriptfile $PROJECT_DIR$/hw/bsp/ra/debug.jlinkscript" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="tinyusb_examples" TARGET_NAME="cdc_msc" CONFIG_NAME="feather_nrf52840_express" version="1" RUN_TARGET_PROJECT_NAME="tinyusb_examples" RUN_TARGET_NAME="cdc_msc">
+    <custom-gdb-server version="1" gdb-connect="tcp::25321" executable="/usr/bin/JLinkGDBServer" warmup-ms="0" download-type="UPDATED_ONLY" reset-cmd="monitor reset" reset-type="AFTER_DOWNLOAD">
+      <debugger kind="GDB" isBundled="true" />
+    </custom-gdb-server>
+    <method v="2">
+      <option name="CLION.COMPOUND.BUILD" enabled="true" />
+    </method>
+  </configuration>
+</component>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

.pre-commit-config.yaml

@@ -0,0 +1,42 @@
+# SPDX-FileCopyrightText: 2020 Diego Elio Pettenò
+#
+# SPDX-License-Identifier: Unlicense
+
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.4.0
+  hooks:
+  - id: check-yaml
+  - id: trailing-whitespace
+    exclude: |
+      (?x)^(
+        hw/bsp/mcx/sdk/
+      )
+  - id: end-of-file-fixer
+    exclude: |
+      (?x)^(
+        .idea/|
+        hw/bsp/mcx/sdk/
+      )
+  - id: forbid-submodules
+
+- repo: https://github.com/codespell-project/codespell
+  rev: v2.2.4
+  hooks:
+  - id: codespell
+    args: [-w]
+    exclude: |
+      (?x)^(
+        lib/|
+        hw/bsp/mcx/sdk/
+      )
+
+- repo: local
+  hooks:
+  - id: unit-test
+    name: unit-test
+    files: ^(src/|test/unit-test/)
+    entry: sh -c "cd test/unit-test && ceedling test:all"
+    pass_filenames: false
+    types_or: [c, header]
+    language: system

.readthedocs.yaml

@@ -4,15 +4,21 @@
 
 version: 2
 
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
+# Build documentation in the docs/ directory with Sphinx
 sphinx:
    configuration: docs/conf.py
 
+# Optionally declare the Python requirements required to build your docs
 python:
-  version: 3.8
   install:
     - requirements: docs/requirements.txt
 
 submodules:
   include: []
   recursive: false
-    

CONTRIBUTORS.rst

@@ -119,6 +119,7 @@ Notable contributors
 
 -  Port DCD Synopsys to support Silabs EFM32GG12 with SLTB009A board
 -  Rewrite documentation in rst and setup for readthedocs
+-  Generalize Renesas driver and support RA family with EK-RA4M3 board
 
 
 `Raspberry Pi Team <https://github.com/raspberrypi>`__
@@ -199,6 +200,8 @@ Notable contributors
 -  Add new DCD port for Microchip SAMx7x
 -  Add IAR compiler support
 -  Improve UAC2, CDC, DFU class driver
+-  Improve stm32_fsdev, chipidea_ci_hs, lpc_ip3511 DCD
+-  Host IAR Build CI & hardware in the loop (HITL) test
 
 
 `Full contributors list <https://github.com/hathach/tinyusb/contributors>`__

README.rst

@@ -20,8 +20,8 @@ Please take a look at the online `documentation <https://docs.tinyusb.org/>`__.
 	├── docs            # Documentation
 	├── examples        # Sample with Makefile build support
 	├── hw
-	│   ├── bsp         # Supported boards source files
-	│   └── mcu         # Low level mcu core & peripheral drivers
+	│   ├── bsp         # Supported boards source files
+	│   └── mcu         # Low level mcu core & peripheral drivers
 	├── lib             # Sources from 3rd party such as freeRTOS, fatfs ...
 	├── src             # All sources files for TinyUSB stack itself.
 	├── test            # Unit tests for the stack
@@ -33,6 +33,7 @@ Supported MCUs
 The stack supports the following MCUs:
 
 - **Allwinner:** F1C100s/F1C200s
+- **Analog:** MAX3421e (aka Arduino usb host shield)
 - **Broadcom:** BCM2837, BCM2711
 - **Dialog:** DA1469x
 - **Espressif:** ESP32-S2, ESP32-S3
@@ -46,12 +47,17 @@ The stack supports the following MCUs:
   - iMX RT Series: RT10xx, RT11xx
   - Kinetis: KL25, K32L2
   - LPC Series: 11u, 13, 15, 17, 18, 40, 43, 51u, 54, 55
+  - MCX: N9x
 
 - **Raspberry Pi:** RP2040
-- **Renesas:** RX63N, RX65N, RX72N
+- **Renesas:**
+
+  - RX Series: 63n, 65n, 72n
+  - RA Series: 4m1, 4m3, 6m1, 6m5
+
 - **Silabs:** EFM32GG
 - **Sony:** CXD56
-- **ST:** STM32 series: F0, F1, F2, F3, F4, F7, H7, G4, L0, L1, L4, L4+, WB
+- **ST:** STM32 series: F0, F1, F2, F3, F4, F7, H7, G0, G4, L0, L1, L4, L4+, WB
 - **TI:** MSP430, MSP432E4, TM4C123
 - **ValentyUSB:** eptri
 - **WCH:** CH32V307
@@ -83,8 +89,19 @@ Host Stack
 
 - Human Interface Device (HID): Keyboard, Mouse, Generic
 - Mass Storage Class (MSC)
+- Communication Device Class: CDC-ACM
+- Vendor serial over USB: FTDI, CP210x
 - Hub with multiple-level support
 
+Similar to the Device Stack, if you have a special requirement, `usbh_app_driver_get_cb()` can be used to write your own class driver without modifying the stack.
+
+TypeC PD Stack
+==============
+
+- Power Delivery 3.0 (PD3.0) with USB Type-C support (WIP)
+- Super early stage, only for testing purpose
+- Only support STM32 G4
+
 OS Abstraction layer
 ====================
 
@@ -108,6 +125,7 @@ Docs
 
   - `Supported Devices`_
   - `Getting Started`_
+  - `Dependencies`_
   - `Concurrency`_
 
 - `Contributing`_
@@ -126,7 +144,7 @@ Please make sure you understand all the license term for files you use
 in your project.
 
 
-.. |Build Status| image:: https://github.com/hathach/tinyusb/workflows/Build/badge.svg
+.. |Build Status| image:: https://github.com/hathach/tinyusb/actions/workflows/cmake_arm.yml/badge.svg
    :target: https://github.com/hathach/tinyusb/actions
 .. |Documentation Status| image:: https://readthedocs.org/projects/tinyusb/badge/?version=latest
    :target: https://docs.tinyusb.org/en/latest/?badge=latest
@@ -142,6 +160,7 @@ in your project.
 .. _Reference: docs/reference/index.rst
 .. _Supported Devices: docs/reference/supported.rst
 .. _Getting Started: docs/reference/getting_started.rst
+.. _Dependencies: docs/reference/dependencies.rst
 .. _Concurrency: docs/reference/concurrency.rst
 .. _Contributing: docs/contributing/index.rst
 .. _Code of Conduct: CODE_OF_CONDUCT.rst

docs/contributing/porting.rst

@@ -62,9 +62,9 @@ Feel free to skip this until you want to verify your demo code is running. To im
 OS Abstraction Layer (OSAL)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-The OS Abstraction Layer is responsible for providing basic data structures for TinyUSB that may allow for concurrency when used with an RTOS. Without an RTOS it simply handles concurrency issues between the main code and interrupts.
+The OS Abstraction Layer is responsible for providing basic data structures for TinyUSB that may allow for concurrency when used with an RTOS. Without an RTOS it simply handles concurrency issues between the main code and interrupts. The code is almost entirely agnostic of MCU and lives in ``src/osal``.
 
-The code is almost entirely agnostic of MCU and lives in ``src/osal``.
+In RTOS configurations, tud_task()/tuh_task() blocks behind a synchronization structure when the event queue is empty, so that the scheduler may give the CPU to a different task. To take advantage of the library's capability to yield the CPU when there are no actionable USB device events, ensure that the `CFG_TUSB_OS` symbol is defined, e.g `OPT_OS_FREERTOS` enables the FreeRTOS scheduler to schedule other threads than that which calls `tud_task()/tuh_task()`.
 
 Device API
 ^^^^^^^^^^

docs/info/changelog.rst

@@ -93,7 +93,7 @@ Controller Driver (DCD & HCD)
 
   - CFG_TUD_ENABLED/CFG_TUH_ENABLED, CFG_TUD_MAX_SPEED/CFG_TUH_MAX_SPEED can be used to replace CFG_TUSB_RHPORT0_MODE/CFG_TUSB_RHPORT1_MODE
   - tud_init(rphort), tuh_init(rhport) can be used to init stack on specified roothub port (controller) instead of tusb_init(void)
-- Add dcd/hcd port specific defines TUP_ (stand for tinyusb port-specific)
+- Add dcd/hcd port specific defines `TUP_` (stand for tinyusb port-specific)
 - [dwc2]
 
   - Update to support stm32 h72x, h73x with only 1 otg controller

docs/reference/dependencies.rst

@@ -0,0 +1,64 @@
+************
+Dependencies
+************
+
+MCU low-level peripheral driver and external libraries for building TinyUSB examples
+
+========================================  ==============================================================  ========================================
+Path                                      Project                                                         Commit
+========================================  ==============================================================  ========================================
+hw/mcu/allwinner                          https://github.com/hathach/allwinner_driver.git                 8e5e89e8e132c0fd90e72d5422e5d3d68232b756
+hw/mcu/bridgetek/ft9xx/ft90x-sdk          https://github.com/BRTSG-FOSS/ft90x-sdk.git                     91060164afe239fcb394122e8bf9eb24d3194eb1
+hw/mcu/broadcom                           https://github.com/adafruit/broadcom-peripherals.git            08370086080759ed54ac1136d62d2ad24c6fa267
+hw/mcu/gd/nuclei-sdk                      https://github.com/Nuclei-Software/nuclei-sdk.git               7eb7bfa9ea4fbeacfafe1d5f77d5a0e6ed3922e7
+hw/mcu/infineon/mtb-xmclib-cat3           https://github.com/Infineon/mtb-xmclib-cat3.git                 daf5500d03cba23e68c2f241c30af79cd9d63880
+hw/mcu/microchip                          https://github.com/hathach/microchip_driver.git                 9e8b37e307d8404033bb881623a113931e1edf27
+hw/mcu/mindmotion/mm32sdk                 https://github.com/hathach/mm32sdk.git                          0b79559eb411149d36e073c1635c620e576308d4
+hw/mcu/nordic/nrfx                        https://github.com/NordicSemiconductor/nrfx.git                 281cc2e178fd9a470d844b3afdea9eb322a0b0e8
+hw/mcu/nuvoton                            https://github.com/majbthrd/nuc_driver.git                      2204191ec76283371419fbcec207da02e1bc22fa
+hw/mcu/nxp/lpcopen                        https://github.com/hathach/nxp_lpcopen.git                      43c45c85405a5dd114fff0ea95cca62837740c13
+hw/mcu/nxp/mcux-sdk                       https://github.com/NXPmicro/mcux-sdk.git                        ae2ab01d9d70ad00cd0e935c2552bd5f0e5c0294
+hw/mcu/nxp/nxp_sdk                        https://github.com/hathach/nxp_sdk.git                          845c8fc49b6fb660f06a5c45225494eacb06f00c
+hw/mcu/raspberry_pi/Pico-PIO-USB          https://github.com/sekigon-gonnoc/Pico-PIO-USB.git              c3715ce94b6f6391856de56081d4d9b3e98fa93d
+hw/mcu/renesas/fsp                        https://github.com/renesas/fsp.git                              8dc14709f2a6518b43f71efad70d900b7718d9f1
+hw/mcu/renesas/rx                         https://github.com/kkitayam/rx_device.git                       706b4e0cf485605c32351e2f90f5698267996023
+hw/mcu/silabs/cmsis-dfp-efm32gg12b        https://github.com/cmsis-packs/cmsis-dfp-efm32gg12b.git         f1c31b7887669cb230b3ea63f9b56769078960bc
+hw/mcu/sony/cxd56/spresense-exported-sdk  https://github.com/sonydevworld/spresense-exported-sdk.git      2ec2a1538362696118dc3fdf56f33dacaf8f4067
+hw/mcu/st/cmsis_device_f0                 https://github.com/STMicroelectronics/cmsis_device_f0.git       2fc25ee22264bc27034358be0bd400b893ef837e
+hw/mcu/st/cmsis_device_f1                 https://github.com/STMicroelectronics/cmsis_device_f1.git       6601104a6397299b7304fd5bcd9a491f56cb23a6
+hw/mcu/st/cmsis_device_f2                 https://github.com/STMicroelectronics/cmsis_device_f2.git       182fcb3681ce116816feb41b7764f1b019ce796f
+hw/mcu/st/cmsis_device_f3                 https://github.com/STMicroelectronics/cmsis_device_f3.git       5e4ee5ed7a7b6c85176bb70a9fd3c72d6eb99f1b
+hw/mcu/st/cmsis_device_f4                 https://github.com/STMicroelectronics/cmsis_device_f4.git       2615e866fa48fe1ff1af9e31c348813f2b19e7ec
+hw/mcu/st/cmsis_device_f7                 https://github.com/STMicroelectronics/cmsis_device_f7.git       fc676ef1ad177eb874eaa06444d3d75395fc51f4
+hw/mcu/st/cmsis_device_g0                 https://github.com/STMicroelectronics/cmsis_device_g0.git       08258b28ee95f50cb9624d152a1cbf084be1f9a5
+hw/mcu/st/cmsis_device_g4                 https://github.com/STMicroelectronics/cmsis_device_g4.git       ce822adb1dc552b3aedd13621edbc7fdae124878
+hw/mcu/st/cmsis_device_h7                 https://github.com/STMicroelectronics/cmsis_device_h7.git       60dc2c913203dc8629dc233d4384dcc41c91e77f
+hw/mcu/st/cmsis_device_l0                 https://github.com/STMicroelectronics/cmsis_device_l0.git       06748ca1f93827befdb8b794402320d94d02004f
+hw/mcu/st/cmsis_device_l1                 https://github.com/STMicroelectronics/cmsis_device_l1.git       7f16ec0a1c4c063f84160b4cc6bf88ad554a823e
+hw/mcu/st/cmsis_device_l4                 https://github.com/STMicroelectronics/cmsis_device_l4.git       6ca7312fa6a5a460b5a5a63d66da527fdd8359a6
+hw/mcu/st/cmsis_device_l5                 https://github.com/STMicroelectronics/cmsis_device_l5.git       d922865fc0326a102c26211c44b8e42f52c1e53d
+hw/mcu/st/cmsis_device_u5                 https://github.com/STMicroelectronics/cmsis_device_u5.git       bc00f3c9d8a4e25220f84c26d414902cc6bdf566
+hw/mcu/st/cmsis_device_wb                 https://github.com/STMicroelectronics/cmsis_device_wb.git       9c5d1920dd9fabbe2548e10561d63db829bb744f
+hw/mcu/st/stm32f0xx_hal_driver            https://github.com/STMicroelectronics/stm32f0xx_hal_driver.git  0e95cd88657030f640a11e690a8a5186c7712ea5
+hw/mcu/st/stm32f1xx_hal_driver            https://github.com/STMicroelectronics/stm32f1xx_hal_driver.git  1dd9d3662fb7eb2a7f7d3bc0a4c1dc7537915a29
+hw/mcu/st/stm32f2xx_hal_driver            https://github.com/STMicroelectronics/stm32f2xx_hal_driver.git  c75ace9b908a9aca631193ebf2466963b8ea33d0
+hw/mcu/st/stm32f3xx_hal_driver            https://github.com/STMicroelectronics/stm32f3xx_hal_driver.git  1761b6207318ede021706e75aae78f452d72b6fa
+hw/mcu/st/stm32f4xx_hal_driver            https://github.com/STMicroelectronics/stm32f4xx_hal_driver.git  04e99fbdabd00ab8f370f377c66b0a4570365b58
+hw/mcu/st/stm32f7xx_hal_driver            https://github.com/STMicroelectronics/stm32f7xx_hal_driver.git  f7ffdf6bf72110e58b42c632b0a051df5997e4ee
+hw/mcu/st/stm32g0xx_hal_driver            https://github.com/STMicroelectronics/stm32g0xx_hal_driver.git  5b53e6cee664a82b16c86491aa0060e2110c00cb
+hw/mcu/st/stm32g4xx_hal_driver            https://github.com/STMicroelectronics/stm32g4xx_hal_driver.git  8b4518417706d42eef5c14e56a650005abf478a8
+hw/mcu/st/stm32h7xx_hal_driver            https://github.com/STMicroelectronics/stm32h7xx_hal_driver.git  d8461b980b59b1625207d8c4f2ce0a9c2a7a3b04
+hw/mcu/st/stm32l0xx_hal_driver            https://github.com/STMicroelectronics/stm32l0xx_hal_driver.git  fbdacaf6f8c82a4e1eb9bd74ba650b491e97e17b
+hw/mcu/st/stm32l1xx_hal_driver            https://github.com/STMicroelectronics/stm32l1xx_hal_driver.git  44efc446fa69ed8344e7fd966e68ed11043b35d9
+hw/mcu/st/stm32l4xx_hal_driver            https://github.com/STMicroelectronics/stm32l4xx_hal_driver.git  aee3d5bf283ae5df87532b781bdd01b7caf256fc
+hw/mcu/st/stm32l5xx_hal_driver            https://github.com/STMicroelectronics/stm32l5xx_hal_driver.git  675c32a75df37f39d50d61f51cb0dcf53f07e1cb
+hw/mcu/st/stm32u5xx_hal_driver            https://github.com/STMicroelectronics/stm32u5xx_hal_driver.git  2e1d4cdb386e33391cb261dfff4fefa92e4aa35a
+hw/mcu/st/stm32wbxx_hal_driver            https://github.com/STMicroelectronics/stm32wbxx_hal_driver.git  2c5f06638be516c1b772f768456ba637f077bac8
+hw/mcu/ti                                 https://github.com/hathach/ti_driver.git                        143ed6cc20a7615d042b03b21e070197d473e6e5
+hw/mcu/wch/ch32v307                       https://github.com/openwch/ch32v307.git                         17761f5cf9dbbf2dcf665b7c04934188add20082
+lib/CMSIS_5                               https://github.com/ARM-software/CMSIS_5.git                     20285262657d1b482d132d20d755c8c330d55c1f
+lib/FreeRTOS-Kernel                       https://github.com/FreeRTOS/FreeRTOS-Kernel.git                 def7d2df2b0506d3d249334974f51e427c17a41c
+lib/lwip                                  https://github.com/lwip-tcpip/lwip.git                          159e31b689577dbf69cf0683bbaffbd71fa5ee10
+lib/sct_neopixel                          https://github.com/gsteiert/sct_neopixel.git                    e73e04ca63495672d955f9268e003cffe168fcd8
+tools/uf2                                 https://github.com/microsoft/uf2.git                            19615407727073e36d81bf239c52108ba92e7660
+========================================  ==============================================================  ========================================

docs/reference/getting_started.rst

@@ -44,12 +44,6 @@ For your convenience, TinyUSB contains a handful of examples for both host and d
    $ git clone https://github.com/hathach/tinyusb tinyusb
    $ cd tinyusb
 
-Some TinyUSB examples also requires external submodule libraries in ``/lib`` such as FreeRTOS, Lightweight IP to build. Run following command to fetch them 
-
-.. code-block::
-
-   $ git submodule update --init lib
-
 Some ports will also require a port-specific SDK (e.g. RP2040) or binary (e.g. Sony Spresense) to build examples. They are out of scope for tinyusb, you should download/install it first according to its manufacturer guide.
 
 Build
@@ -61,23 +55,25 @@ To build example, first change directory to an example folder.
 
    $ cd examples/device/cdc_msc
 
-Before building, we need to download MCU driver submodule to provide low-level MCU peripheral's driver first. Run the ``get-deps`` target in one of the example folder as follow. You only need to do this once per mcu
+Before building, we firstly need to download dependencies such as: MCU low-level peripheral driver and external libraries e.g FreeRTOS (required by some examples). Run the ``get-deps`` target in one of the example folder as follow. You only need to do this once per mcu. Check out `complete list of dependencies and their designated path here <dependencies.rst>`_
 
 .. code-block::
 
-   $ make BOARD=feather_nrf52840_express get-deps
-
-
-Some modules (e.g. RP2040 and ESP32s2) require the project makefiles to be customized using CMake. If necessary apply any setup steps for the platform's SDK.
+   $ make BOARD=raspberry_pi_pico get-deps
 
 Then compile with ``make BOARD=[board_name] all``\ , for example
 
 .. code-block::
 
-   $ make BOARD=feather_nrf52840_express all
+   $ make BOARD=raspberry_pi_pico all
 
 Note: ``BOARD`` can be found as directory name in ``hw/bsp``\ , either in its family/boards or directly under bsp (no family).
-Note: some examples especially those that uses Vendor class (e.g webUSB) may requires udev permission on Linux (and/or macOS) to access usb device. It depends on your OS distro, typically copy ``/examples/device/99-tinyusb.rules`` file to /etc/udev/rules.d/ then run ``sudo udevadm control --reload-rules && sudo udevadm trigger`` is good enough.
+Note: some examples especially those that uses Vendor class (e.g webUSB) may requires udev permission on Linux (and/or macOS) to access usb device. It depends on your OS distro, typically copy ``99-tinyusb.rules`` and reload your udev is good to go
+
+.. code-block::
+
+   $ cp examples/device/99-tinyusb.rules /etc/udev/rules.d/
+   $ sudo udevadm control --reload-rules && sudo udevadm trigger
 
 Port Selection
 ~~~~~~~~~~~~~~

docs/reference/index.rst

@@ -56,4 +56,5 @@ Index
 
    supported
    getting_started
+   dependencies
    concurrency

docs/reference/supported.rst

@@ -61,9 +61,11 @@ Supported MCUs
 |              |         | 55          | ✔      |      | ✔         | lpc_ip3511        |              |
 +--------------+---------+-------------+--------+------+-----------+-------------------+--------------+
 | Raspberry Pi | RP2040                | ✔      | ✔    | ✖         | rp2040, pio_usb   |              |
-+--------------+-----------------------+--------+------+-----------+-------------------+--------------+
-| Renesas      | RX 63N, 65N, 72N      | ✔      | ✔    | ✖         | usba              |              |
-+--------------+-----------------------+--------+------+-----------+-------------------+--------------+
++--------------+-----+-----------------+--------+------+-----------+-------------------+--------------+
+| Renesas      | RX  | 63N, 65N, 72N   | ✔      | ✔    | ✖         | rusb2             |              |
+|              +-----+-----------------+--------+------+-----------+-------------------+--------------+
+|              | RA  | XXX             | ✔      | ✔    |           | rusb2             |              |
++--------------+-----+-----------------+--------+------+-----------+-------------------+--------------+
 | Silabs       | EFM32GG12             | ✔      |      | ✖         | dwc2              |              |
 +--------------+-----------------------+--------+------+-----------+-------------------+--------------+
 | Sony         | CXD56                 | ✔      | ✖    | ✔         | cxd56             |              |
@@ -173,7 +175,7 @@ SAMD11 & SAMD21
 -  `Adafruit Feather M0 Express <https://www.adafruit.com/product/3403>`__
 -  `Adafruit ItsyBitsy M0 Express <https://www.adafruit.com/product/3727>`__
 -  `Adafruit Metro M0 Express <https://www.adafruit.com/product/3505>`__
--  `Great Scott Gadgets LUNA <https://greatscottgadgets.com/luna/>`__
+-  `Great Scott Gadgets Cynthion <https://greatscottgadgets.com/cynthion/>`__
 -  `Microchip SAMD11 Xplained Pro <https://www.microchip.com/developmenttools/ProductDetails/atsamd11-xpro>`__
 -  `Microchip SAMD21 Xplained Pro <https://www.microchip.com/DevelopmentTools/ProductDetails/ATSAMD21-XPRO>`__
 -  `Seeeduino Xiao <https://www.seeedstudio.com/Seeeduino-XIAO-Arduino-Microcontroller-SAMD21-Cortex-M0+-p-4426.html>`__
@@ -251,6 +253,7 @@ Kinetis
 ^^^^^^^
 
 -  `Freedom FRDM-KL25Z <https://www.nxp.com/design/development-boards/freedom-development-boards/mcu-boards/freedom-development-platform-for-kinetis-kl14-kl15-kl24-kl25-mcus:FRDM-KL25Z>`__
+-  `Freedom FRDM-K32L2A4S  <https://www.nxp.com/design/development-boards/freedom-development-boards/mcu-boards/nxp-freedom-platform-for-k32-l2a-mcus:FRDM-K32L2A4S>`__
 -  `Freedom FRDM-K32L2B3 <https://www.nxp.com/design/development-boards/freedom-development-boards/mcu-boards/nxp-freedom-development-platform-for-k32-l2b-mcus:FRDM-K32L2B3>`__
 -  `KUIIC <https://github.com/nxf58843/kuiic>`__
 
@@ -295,8 +298,17 @@ LPC55
 -  `LPCXpresso 55s69 EVK <https://www.nxp.com/design/development-boards/lpcxpresso-boards/lpcxpresso55s69-development-board:LPC55S69-EVK>`__
 -  `MCU-Link <https://www.nxp.com/design/development-boards/lpcxpresso-boards/mcu-link-debug-probe:MCU-LINK>`__
 
-Renesas RX
-----------
+Renesas
+-------
+
+RA
+^^
+
+-  `Evaluation Kit for RA4M1 <https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ek-ra4m1-evaluation-kit-ra4m1-mcu-group>`__
+-  `Evaluation Kit for RA4M3 <https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ek-ra4m3-evaluation-kit-ra4m3-mcu-group>`__
+
+RX
+^^
 
 -  `GR-CITRUS <https://www.renesas.com/us/en/products/gadget-renesas/boards/gr-citrus>`__
 -  `Renesas RX65N Target Board <https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rx-32-bit-performance-efficiency-mcus/rtk5rx65n0c00000br-target-board-rx65n>`__

docs/requirements.txt

@@ -1,4 +1,4 @@
-sphinx~=3.0
+sphinx>=5.0
 furo>=2020.12.30.b24
 sphinx-autodoc-typehints>=1.10
-jinja2==3.0.3
+jinja2>=3.0.3

examples/CMakeLists.txt

@@ -0,0 +1,11 @@
+cmake_minimum_required(VERSION 3.17)
+
+#set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+include(${CMAKE_CURRENT_SOURCE_DIR}/../hw/bsp/family_support.cmake)
+
+project(tinyusb_examples C CXX ASM)
+
+add_subdirectory(device)
+add_subdirectory(dual)
+add_subdirectory(host)
+add_subdirectory(typec)

examples/device/CMakeLists.txt

@@ -1,20 +1,23 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.17)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../hw/bsp/family_support.cmake)
 
-project(tinyusb_device_examples)
+project(tinyusb_device_examples C CXX ASM)
 family_initialize_project(tinyusb_device_examples ${CMAKE_CURRENT_LIST_DIR})
 
 # family_add_subdirectory will filter what to actually add based on selected FAMILY
 family_add_subdirectory(audio_4_channel_mic)
 family_add_subdirectory(audio_test)
+family_add_subdirectory(audio_test_multi_rate)
 family_add_subdirectory(board_test)
 family_add_subdirectory(cdc_dual_ports)
 family_add_subdirectory(cdc_msc)
 family_add_subdirectory(cdc_msc_freertos)
+family_add_subdirectory(cdc_uac2)
 family_add_subdirectory(dfu)
 family_add_subdirectory(dfu_runtime)
 family_add_subdirectory(dynamic_configuration)
+family_add_subdirectory(hid_boot_interface)
 family_add_subdirectory(hid_composite)
 family_add_subdirectory(hid_composite_freertos)
 family_add_subdirectory(hid_generic_inout)

examples/device/audio_4_channel_mic/CMakeLists.txt

@@ -1,28 +1,38 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.17)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
 # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
 family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
 
-project(${PROJECT})
+project(${PROJECT} C CXX ASM)
 
 # Checks this example is valid for the family and initializes the project
 family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
 
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
+endif()
+
 add_executable(${PROJECT})
 
 # Example source
 target_sources(${PROJECT} PUBLIC
   ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
   ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
-)
+  )
 
 # Example include
 target_include_directories(${PROJECT} 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(${PROJECT})
+# Add libm for GCC
+if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+  target_link_libraries(${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)

examples/device/audio_4_channel_mic/Makefile

@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \
@@ -6,7 +5,10 @@ INC += \
   $(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

examples/device/audio_4_channel_mic/skip.txt

@@ -1,3 +1,4 @@
 mcu:SAMD11
 mcu:SAME5X
 mcu:SAMG
+family:broadcom_64bit

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.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
+#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_TX_SUPP_SW_FIFO_SZ/2];   // Ensure half word aligned
+#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_EP_SZ_IN];   // Ensure half word aligned
+#endif
 
 void led_blinking_task(void);
 void audio_task(void);
@@ -84,6 +88,10 @@ int main(void)
   // init device stack on configured roothub port
   tud_init(BOARD_TUD_RHPORT);
 
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
   // Init values
   sampFreq = AUDIO_SAMPLE_RATE;
   clkValid = 1;
@@ -93,15 +101,51 @@ 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
     led_blinking_task();
     audio_task();
   }
-
-
-  return 0;
 }
 
 //--------------------------------------------------------------------+
@@ -132,7 +176,7 @@ void tud_suspend_cb(bool remote_wakeup_en)
 // Invoked when usb bus is resumed
 void tud_resume_cb(void)
 {
-  blink_interval_ms = BLINK_MOUNTED;
+  blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
 }
 
 //--------------------------------------------------------------------+
@@ -290,7 +334,7 @@ bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const *
 
         // Those are dummy values for now
         ret.bNrChannels = 1;
-        ret.bmChannelConfig = 0;
+        ret.bmChannelConfig = (audio_channel_config_t) 0;
         ret.iChannelNames = 0;
 
         TU_LOG2("    Get terminal connector\r\n");
@@ -363,7 +407,8 @@ 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");
@@ -399,11 +444,24 @@ 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++)
+
+  // 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);
+  // }
+
+#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
   return true;
 }
 
@@ -415,22 +473,6 @@ 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;
 }
 

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:
@@ -25,10 +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()
-    

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       4 * (CFG_TUD_AUDIO_EP_SZ_IN / CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO) // Minimum 4*EP size is needed for flow control
+
+#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          4 * CFG_TUD_AUDIO_EP_SZ_IN    // Minimum 4*EP size is needed for flow control
+
+#endif
 
 #ifdef __cplusplus
 }

examples/device/audio_4_channel_mic/src/usb_descriptors.c

@@ -23,6 +23,7 @@
  *
  */
 
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 /* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
@@ -44,7 +45,7 @@ tusb_desc_device_t const desc_device =
     .bDescriptorType    = TUSB_DESC_DEVICE,
     .bcdUSB             = 0x0200,
 
-    // Use Interface Association Descriptor (IAD) for CDC
+    // Use Interface Association Descriptor (IAD) for Audio
     // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
     .bDeviceClass       = TUSB_CLASS_MISC,
     .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
@@ -96,7 +97,7 @@ enum
 
 uint8_t const desc_configuration[] =
 {
-  // Interface count, string index, total length, attribute, power in mA
+  // Config number, interface count, string index, total length, attribute, power in mA
   TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, EP Out & EP In address, EP size
@@ -116,50 +117,63 @@ uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
 // String Descriptors
 //--------------------------------------------------------------------+
 
-// array of pointer to string descriptors
-char const* string_desc_arr [] =
-{
-    (const char[]) { 0x09, 0x04 }, 	// 0: is supported language is English (0x0409)
-    "PaniRCorp",                   	// 1: Manufacturer
-    "MicNode_4_Ch",    		// 2: Product
-    "123458",                      	// 3: Serials, should use chip ID
-    "UAC2",                 	 	// 4: Audio Interface
+// String Descriptor Index
+enum {
+  STRID_LANGID = 0,
+  STRID_MANUFACTURER,
+  STRID_PRODUCT,
+  STRID_SERIAL,
 };
 
-static uint16_t _desc_str[32];
+// array of pointer to string descriptors
+char const* string_desc_arr [] = {
+    (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
+    "PaniRCorp",                   // 1: Manufacturer
+    "MicNode_4_Ch",                // 2: Product
+    NULL,                          // 3: Serials will use unique ID if possible
+    "UAC2",                        // 4: Audio Interface
+};
+
+static uint16_t _desc_str[32 + 1];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
-{
+uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
   (void) langid;
+  size_t chr_count;
 
-  uint8_t chr_count;
+  switch ( index ) {
+    case STRID_LANGID:
+      memcpy(&_desc_str[1], string_desc_arr[0], 2);
+      chr_count = 1;
+      break;
 
-  if ( index == 0)
-  {
-    memcpy(&_desc_str[1], string_desc_arr[0], 2);
-    chr_count = 1;
-  }else
-  {
-    // Convert ASCII string into UTF-16
+    case STRID_SERIAL:
+      chr_count = board_usb_get_serial(_desc_str + 1, 32);
+      break;
 
-    if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
+    default:
+      // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+      // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
 
-    const char* str = string_desc_arr[index];
+      if ( !(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])) ) return NULL;
 
-    // Cap at max char
-    chr_count = (uint8_t) strlen(str);
-    if ( chr_count > 31 ) chr_count = 31;
+      const char *str = string_desc_arr[index];
 
-    for(uint8_t i=0; i<chr_count; i++)
-    {
-      _desc_str[1+i] = str[i];
-    }
+      // Cap at max char
+      chr_count = strlen(str);
+      size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
+      if ( chr_count > max_count ) chr_count = max_count;
+
+      // Convert ASCII string into UTF-16
+      for ( size_t i = 0; i < chr_count; i++ ) {
+        _desc_str[1 + i] = str[i];
+      }
+      break;
   }
 
   // first byte is length (including header), second byte is string type
-  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8 ) | (2*chr_count + 2));
+  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
 
   return _desc_str;
 }

examples/device/audio_test/CMakeLists.txt

@@ -1,28 +1,33 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.17)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
 # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
 family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
 
-project(${PROJECT})
+project(${PROJECT} C CXX ASM)
 
 # Checks this example is valid for the family and initializes the project
 family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
 
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
+endif()
+
 add_executable(${PROJECT})
 
 # Example source
 target_sources(${PROJECT} PUBLIC
   ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
   ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
-)
+  )
 
 # Example include
 target_include_directories(${PROJECT} 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(${PROJECT})
+# Configure compilation flags and libraries for the example without RTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_device_example(${PROJECT} noos)

examples/device/audio_test/Makefile

@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \

examples/device/audio_test/src/main.c

@@ -35,7 +35,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "bsp/board.h"
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 //--------------------------------------------------------------------+
@@ -71,7 +71,7 @@ audio_control_range_2_n_t(1) volumeRng[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX+1];
 audio_control_range_4_n_t(1) sampleFreqRng; 						// Sample frequency range state
 
 // Audio test data
-uint16_t test_buffer_audio[CFG_TUD_AUDIO_EP_SZ_IN/2];
+uint16_t test_buffer_audio[(CFG_TUD_AUDIO_EP_SZ_IN - 2) / 2];
 uint16_t startVal = 0;
 
 void led_blinking_task(void);
@@ -85,6 +85,10 @@ int main(void)
   // init device stack on configured roothub port
   tud_init(BOARD_TUD_RHPORT);
 
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
   // Init values
   sampFreq = AUDIO_SAMPLE_RATE;
   clkValid = 1;
@@ -100,9 +104,6 @@ int main(void)
     led_blinking_task();
     audio_task();
   }
-
-
-  return 0;
 }
 
 //--------------------------------------------------------------------+
@@ -133,7 +134,7 @@ void tud_suspend_cb(bool remote_wakeup_en)
 // Invoked when usb bus is resumed
 void tud_resume_cb(void)
 {
-  blink_interval_ms = BLINK_MOUNTED;
+  blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
 }
 
 //--------------------------------------------------------------------+
@@ -291,7 +292,7 @@ bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const *
 
         // Those are dummy values for now
         ret.bNrChannels = 1;
-        ret.bmChannelConfig = 0;
+        ret.bmChannelConfig = (audio_channel_config_t) 0;
         ret.iChannelNames = 0;
 
         TU_LOG2("    Get terminal connector\r\n");
@@ -400,7 +401,7 @@ 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;
 
-  tud_audio_write ((uint8_t *)test_buffer_audio, CFG_TUD_AUDIO_EP_SZ_IN);
+  tud_audio_write ((uint8_t *)test_buffer_audio, CFG_TUD_AUDIO_EP_SZ_IN - 2);
 
   return true;
 }
@@ -413,7 +414,7 @@ bool tud_audio_tx_done_post_load_cb(uint8_t rhport, uint16_t n_bytes_copied, uin
   (void) ep_in;
   (void) cur_alt_setting;
 
-  for (size_t cnt = 0; cnt < CFG_TUD_AUDIO_EP_SZ_IN/2; cnt++)
+  for (size_t cnt = 0; cnt < (CFG_TUD_AUDIO_EP_SZ_IN - 2) / 2; cnt++)
   {
     test_buffer_audio[cnt] = startVal++;
   }

examples/device/audio_test/src/plot_audio_samples.py

@@ -2,6 +2,7 @@ import sounddevice as sd
 import matplotlib.pyplot as plt
 import numpy as np
 import platform
+import csv
 
 if __name__ == '__main__':
 
@@ -32,3 +33,5 @@ if __name__ == '__main__':
     plt.title('MicNode')
     plt.show()
 
+    samples = np.array(myrecording)
+    np.savetxt('Output.csv', samples, delimiter=",", fmt='%s')

examples/device/audio_test/src/tusb_config.h

@@ -114,7 +114,7 @@ extern "C" {
 #define CFG_TUD_AUDIO_ENABLE_EP_IN                                    1
 #define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX                    2                                       // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below
 #define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX                            1                                       // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below - be aware: for different number of channels you need another descriptor!
-#define CFG_TUD_AUDIO_EP_SZ_IN                                        48 * 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 1 Channel
+#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 - One extra sample is needed for asynchronous transfer adjustment, see feedback EP
 #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX                             CFG_TUD_AUDIO_EP_SZ_IN                  // Maximum EP IN size for all AS alternate settings used
 #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ                          CFG_TUD_AUDIO_EP_SZ_IN + 1
 

examples/device/audio_test/src/usb_descriptors.c

@@ -23,6 +23,7 @@
  *
  */
 
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 /* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
@@ -44,7 +45,7 @@ tusb_desc_device_t const desc_device =
     .bDescriptorType    = TUSB_DESC_DEVICE,
     .bcdUSB             = 0x0200,
 
-    // Use Interface Association Descriptor (IAD) for CDC
+    // Use Interface Association Descriptor (IAD) for Audio
     // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
     .bDeviceClass       = TUSB_CLASS_MISC,
     .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
@@ -96,7 +97,7 @@ enum
 
 uint8_t const desc_configuration[] =
 {
-    // Interface count, string index, total length, attribute, power in mA
+    // Config number, interface count, string index, total length, attribute, power in mA
     TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
     // Interface number, string index, EP Out & EP In address, EP size
@@ -116,50 +117,65 @@ uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
 // String Descriptors
 //--------------------------------------------------------------------+
 
+// String Descriptor Index
+enum {
+  STRID_LANGID = 0,
+  STRID_MANUFACTURER,
+  STRID_PRODUCT,
+  STRID_SERIAL,
+};
+
 // array of pointer to string descriptors
 char const* string_desc_arr [] =
 {
-    (const char[]) { 0x09, 0x04 }, 	// 0: is supported language is English (0x0409)
-    "PaniRCorp",                   	// 1: Manufacturer
-    "MicNode",              		// 2: Product
-    "123456",                      	// 3: Serials, should use chip ID
-    "UAC2",                 	 	// 4: Audio Interface
+    (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
+    "PaniRCorp",                   // 1: Manufacturer
+    "MicNode",                     // 2: Product
+    NULL,                          // 3: Serials will use unique ID if possible
+    "UAC2",                        // 4: Audio Interface
+
 };
 
-static uint16_t _desc_str[32];
+static uint16_t _desc_str[32 + 1];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
-{
+uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
   (void) langid;
+  size_t chr_count;
 
-  uint8_t chr_count;
+  switch ( index ) {
+    case STRID_LANGID:
+      memcpy(&_desc_str[1], string_desc_arr[0], 2);
+      chr_count = 1;
+      break;
 
-  if ( index == 0)
-  {
-    memcpy(&_desc_str[1], string_desc_arr[0], 2);
-    chr_count = 1;
-  }else
-  {
-    // Convert ASCII string into UTF-16
+    case STRID_SERIAL:
+      chr_count = board_usb_get_serial(_desc_str + 1, 32);
+      break;
 
-    if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
+    default:
+      // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+      // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
 
-    const char* str = string_desc_arr[index];
+      if ( !(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])) ) return NULL;
 
-    // Cap at max char
-    chr_count = (uint8_t) strlen(str);
-    if ( chr_count > 31 ) chr_count = 31;
+      const char *str = string_desc_arr[index];
 
-    for(uint8_t i=0; i<chr_count; i++)
-    {
-      _desc_str[1+i] = str[i];
-    }
+      // Cap at max char
+      chr_count = strlen(str);
+      size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
+      if ( chr_count > max_count ) chr_count = max_count;
+
+      // Convert ASCII string into UTF-16
+      for ( size_t i = 0; i < chr_count; i++ ) {
+        _desc_str[1 + i] = str[i];
+      }
+      break;
   }
 
   // first byte is length (including header), second byte is string type
-  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8 ) | (2*chr_count + 2));
+  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
 
   return _desc_str;
 }

examples/device/audio_test_multi_rate/CMakeLists.txt

@@ -0,0 +1,33 @@
+cmake_minimum_required(VERSION 3.17)
+
+include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
+
+# gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
+family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
+
+project(${PROJECT} C CXX ASM)
+
+# Checks this example is valid for the family and initializes the project
+family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
+
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
+endif()
+
+add_executable(${PROJECT})
+
+# Example source
+target_sources(${PROJECT} PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
+  )
+
+# Example include
+target_include_directories(${PROJECT} 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)

examples/device/audio_test_multi_rate/Makefile

@@ -0,0 +1,11 @@
+include ../../make.mk
+
+INC += \
+  src \
+  $(TOP)/hw \
+
+# Example source
+EXAMPLE_SOURCE += $(wildcard src/*.c)
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+
+include ../../rules.mk

examples/device/audio_test_multi_rate/skip.txt

@@ -0,0 +1,3 @@
+mcu:SAMD11
+mcu:SAME5X
+mcu:SAMG

examples/device/audio_test_multi_rate/src/main.c

@@ -0,0 +1,525 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Reinhard Panhuber
+ * Copyright (c) 2022 HiFiPhile
+ *
+ * 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.
+ *
+ */
+
+/* plot_audio_samples.py requires following modules:
+ * $ sudo apt install libportaudio
+ * $ pip3 install sounddevice matplotlib
+ *
+ * Then run
+ * $ python3 plot_audio_samples.py
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board_api.h"
+#include "tusb.h"
+#include "usb_descriptors.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+
+/* 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;
+
+// Audio controls
+// Current states
+bool mute[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX + 1]; 				          // +1 for master channel 0
+uint16_t volume[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX + 1]; 					// +1 for master channel 0
+uint32_t sampFreq;
+uint8_t bytesPerSample;
+uint8_t clkValid;
+
+// Range states
+// List of supported sample rates
+static const uint32_t sampleRatesList[] =
+{
+    32000, 48000, 96000
+};
+
+#define N_sampleRates  TU_ARRAY_SIZE(sampleRatesList)
+
+// Bytes per format of every Alt settings
+static const uint8_t bytesPerSampleAltList[CFG_TUD_AUDIO_FUNC_1_N_FORMATS] =
+{
+    CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX,
+    CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX,
+};
+
+audio_control_range_2_n_t(1) volumeRng[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX+1]; 			// Volume range state
+
+
+// Audio test data
+CFG_TUSB_MEM_ALIGN uint8_t test_buffer_audio[CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX];
+uint16_t startVal = 0;
+
+void led_blinking_task(void);
+void audio_task(void);
+
+/*------------- MAIN -------------*/
+int main(void)
+{
+  board_init();
+
+  // init device stack on configured roothub port
+  tud_init(BOARD_TUD_RHPORT);
+
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
+  // Init values
+  sampFreq = sampleRatesList[0];
+  clkValid = 1;
+
+  while (1)
+  {
+    tud_task(); // tinyusb device task
+    led_blinking_task();
+    audio_task();
+  }
+
+
+  return 0;
+}
+
+//--------------------------------------------------------------------+
+// 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;
+}
+
+//--------------------------------------------------------------------+
+// AUDIO Task
+//--------------------------------------------------------------------+
+
+void audio_task(void)
+{
+  // Yet to be filled - e.g. put meas data into TX FIFOs etc.
+  // asm("nop");
+}
+
+//--------------------------------------------------------------------+
+// Application Callback API Implementations
+//--------------------------------------------------------------------+
+
+// Invoked when set interface is called, typically on start/stop streaming or format change
+bool tud_audio_set_itf_cb(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  (void)rhport;
+  //uint8_t const itf = tu_u16_low(tu_le16toh(p_request->wIndex));
+  uint8_t const alt = tu_u16_low(tu_le16toh(p_request->wValue));
+
+  // Clear buffer when streaming format is changed
+  if(alt != 0)
+  {
+    bytesPerSample = bytesPerSampleAltList[alt-1];
+  }
+  return true;
+}
+
+// Invoked when audio class specific set request received for an EP
+bool tud_audio_set_req_ep_cb(uint8_t rhport, tusb_control_request_t const * p_request, uint8_t *pBuff)
+{
+  (void) rhport;
+  (void) pBuff;
+
+  // We do not support any set range requests here, only current value requests
+  TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR);
+
+  // Page 91 in UAC2 specification
+  uint8_t channelNum = TU_U16_LOW(p_request->wValue);
+  uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
+  uint8_t ep = TU_U16_LOW(p_request->wIndex);
+
+  (void) channelNum; (void) ctrlSel; (void) ep;
+
+  return false; 	// Yet not implemented
+}
+
+// Invoked when audio class specific set request received for an interface
+bool tud_audio_set_req_itf_cb(uint8_t rhport, tusb_control_request_t const * p_request, uint8_t *pBuff)
+{
+  (void) rhport;
+  (void) pBuff;
+
+  // We do not support any set range requests here, only current value requests
+  TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR);
+
+  // Page 91 in UAC2 specification
+  uint8_t channelNum = TU_U16_LOW(p_request->wValue);
+  uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
+  uint8_t itf = TU_U16_LOW(p_request->wIndex);
+
+  (void) channelNum; (void) ctrlSel; (void) itf;
+
+  return false; 	// Yet not implemented
+}
+
+// Invoked when audio class specific set request received for an entity
+bool tud_audio_set_req_entity_cb(uint8_t rhport, tusb_control_request_t const * p_request, uint8_t *pBuff)
+{
+  (void) rhport;
+
+  // Page 91 in UAC2 specification
+  uint8_t channelNum = TU_U16_LOW(p_request->wValue);
+  uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
+  uint8_t itf = TU_U16_LOW(p_request->wIndex);
+  uint8_t entityID = TU_U16_HIGH(p_request->wIndex);
+
+  (void) itf;
+
+  // We do not support any set range requests here, only current value requests
+  TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR);
+
+  // If request is for our feature unit
+  if ( entityID == UAC2_ENTITY_FEATURE_UNIT )
+  {
+    switch ( ctrlSel )
+    {
+      case AUDIO_FU_CTRL_MUTE:
+        // Request uses format layout 1
+        TU_VERIFY(p_request->wLength == sizeof(audio_control_cur_1_t));
+
+        mute[channelNum] = ((audio_control_cur_1_t*) pBuff)->bCur;
+
+        TU_LOG2("    Set Mute: %d of channel: %u\r\n", mute[channelNum], channelNum);
+      return true;
+
+      case AUDIO_FU_CTRL_VOLUME:
+        // Request uses format layout 2
+        TU_VERIFY(p_request->wLength == sizeof(audio_control_cur_2_t));
+
+        volume[channelNum] = (uint16_t) ((audio_control_cur_2_t*) pBuff)->bCur;
+
+        TU_LOG2("    Set Volume: %d dB of channel: %u\r\n", volume[channelNum], channelNum);
+      return true;
+
+        // Unknown/Unsupported control
+      default:
+        TU_BREAKPOINT();
+      return false;
+    }
+  }
+
+  // Clock Source unit
+  if ( entityID == UAC2_ENTITY_CLOCK )
+  {
+    switch ( ctrlSel )
+    {
+      case AUDIO_CS_CTRL_SAM_FREQ:
+        TU_VERIFY(p_request->wLength == sizeof(audio_control_cur_4_t));
+
+        sampFreq = (uint32_t)((audio_control_cur_4_t *)pBuff)->bCur;
+
+        TU_LOG2("Clock set current freq: %lu\r\n", sampFreq);
+
+        return true;
+      break;
+
+      // Unknown/Unsupported control
+      default:
+        TU_BREAKPOINT();
+        return false;
+    }
+  }
+
+  return false;    // Yet not implemented
+}
+
+// Invoked when audio class specific get request received for an EP
+bool tud_audio_get_req_ep_cb(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  (void) rhport;
+
+  // Page 91 in UAC2 specification
+  uint8_t channelNum = TU_U16_LOW(p_request->wValue);
+  uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
+  uint8_t ep = TU_U16_LOW(p_request->wIndex);
+
+  (void) channelNum; (void) ctrlSel; (void) ep;
+
+  //	return tud_control_xfer(rhport, p_request, &tmp, 1);
+
+  return false; 	// Yet not implemented
+}
+
+// Invoked when audio class specific get request received for an interface
+bool tud_audio_get_req_itf_cb(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  (void) rhport;
+
+  // Page 91 in UAC2 specification
+  uint8_t channelNum = TU_U16_LOW(p_request->wValue);
+  uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
+  uint8_t itf = TU_U16_LOW(p_request->wIndex);
+
+  (void) channelNum; (void) ctrlSel; (void) itf;
+
+  return false; 	// Yet not implemented
+}
+
+// Invoked when audio class specific get request received for an entity
+bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  (void) rhport;
+
+  // Page 91 in UAC2 specification
+  uint8_t channelNum = TU_U16_LOW(p_request->wValue);
+  uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
+  // uint8_t itf = TU_U16_LOW(p_request->wIndex); 			// Since we have only one audio function implemented, we do not need the itf value
+  uint8_t entityID = TU_U16_HIGH(p_request->wIndex);
+
+  // Input terminal (Microphone input)
+  if (entityID == UAC2_ENTITY_INPUT_TERMINAL)
+  {
+    switch ( ctrlSel )
+    {
+      case AUDIO_TE_CTRL_CONNECTOR:
+      {
+        // The terminal connector control only has a get request with only the CUR attribute.
+        audio_desc_channel_cluster_t ret;
+
+        // Those are dummy values for now
+        ret.bNrChannels = 1;
+        ret.bmChannelConfig = 0;
+        ret.iChannelNames = 0;
+
+        TU_LOG2("    Get terminal connector\r\n");
+
+        return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, (void*) &ret, sizeof(ret));
+      }
+      break;
+
+        // Unknown/Unsupported control selector
+      default:
+        TU_BREAKPOINT();
+        return false;
+    }
+  }
+
+  // Feature unit
+  if (entityID == UAC2_ENTITY_FEATURE_UNIT)
+  {
+    switch ( ctrlSel )
+    {
+      case AUDIO_FU_CTRL_MUTE:
+        // Audio control mute cur parameter block consists of only one byte - we thus can send it right away
+        // There does not exist a range parameter block for mute
+        TU_LOG2("    Get Mute of channel: %u\r\n", channelNum);
+        return tud_control_xfer(rhport, p_request, &mute[channelNum], 1);
+
+      case AUDIO_FU_CTRL_VOLUME:
+        switch ( p_request->bRequest )
+        {
+          case AUDIO_CS_REQ_CUR:
+            TU_LOG2("    Get Volume of channel: %u\r\n", channelNum);
+            return tud_control_xfer(rhport, p_request, &volume[channelNum], sizeof(volume[channelNum]));
+
+          case AUDIO_CS_REQ_RANGE:
+            TU_LOG2("    Get Volume range of channel: %u\r\n", channelNum);
+
+            // Copy values - only for testing - better is version below
+            audio_control_range_2_n_t(1)
+            ret;
+
+            ret.wNumSubRanges = 1;
+            ret.subrange[0].bMin = -90;    // -90 dB
+            ret.subrange[0].bMax = 30;		// +30 dB
+            ret.subrange[0].bRes = 1; 		// 1 dB steps
+
+            return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, (void*) &ret, sizeof(ret));
+
+            // Unknown/Unsupported control
+          default:
+            TU_BREAKPOINT();
+            return false;
+        }
+      break;
+
+        // Unknown/Unsupported control
+      default:
+        TU_BREAKPOINT();
+        return false;
+    }
+  }
+
+  // Clock Source unit
+  if ( entityID == UAC2_ENTITY_CLOCK )
+  {
+    switch ( ctrlSel )
+    {
+      case AUDIO_CS_CTRL_SAM_FREQ:
+        // channelNum is always zero in this case
+        switch ( p_request->bRequest )
+        {
+          case AUDIO_CS_REQ_CUR:
+            TU_LOG2("    Get Sample Freq.\r\n");
+            return tud_control_xfer(rhport, p_request, &sampFreq, sizeof(sampFreq));
+
+          case AUDIO_CS_REQ_RANGE:
+          {
+            TU_LOG2("    Get Sample Freq. range\r\n");
+            audio_control_range_4_n_t(N_sampleRates) rangef =
+            {
+                .wNumSubRanges = tu_htole16(N_sampleRates)
+            };
+            TU_LOG1("Clock get %d freq ranges\r\n", N_sampleRates);
+            for(uint8_t i = 0; i < N_sampleRates; i++)
+            {
+                rangef.subrange[i].bMin = (int32_t)sampleRatesList[i];
+                rangef.subrange[i].bMax = (int32_t)sampleRatesList[i];
+                rangef.subrange[i].bRes = 0;
+                TU_LOG1("Range %d (%d, %d, %d)\r\n", i, (int)rangef.subrange[i].bMin, (int)rangef.subrange[i].bMax, (int)rangef.subrange[i].bRes);
+            }
+            return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &rangef, sizeof(rangef));
+          }
+           // Unknown/Unsupported control
+          default:
+            TU_BREAKPOINT();
+            return false;
+        }
+      break;
+
+      case AUDIO_CS_CTRL_CLK_VALID:
+        // Only cur attribute exists for this request
+        TU_LOG2("    Get Sample Freq. valid\r\n");
+        return tud_control_xfer(rhport, p_request, &clkValid, sizeof(clkValid));
+
+      // Unknown/Unsupported control
+      default:
+        TU_BREAKPOINT();
+        return false;
+    }
+  }
+
+  TU_LOG2("  Unsupported entity: %d\r\n", entityID);
+  return false; 	// Yet not implemented
+}
+
+bool tud_audio_tx_done_pre_load_cb(uint8_t rhport, uint8_t itf, uint8_t ep_in, uint8_t cur_alt_setting)
+{
+  (void) rhport;
+  (void) itf;
+  (void) ep_in;
+  (void) cur_alt_setting;
+
+  tud_audio_write((uint8_t *)test_buffer_audio, (uint16_t)(sampFreq / (TUD_OPT_HIGH_SPEED ? 8000 : 1000) * bytesPerSample));
+
+  return true;
+}
+
+bool tud_audio_tx_done_post_load_cb(uint8_t rhport, uint16_t n_bytes_copied, uint8_t itf, uint8_t ep_in, uint8_t cur_alt_setting)
+{
+  (void) rhport;
+  (void) n_bytes_copied;
+  (void) itf;
+  (void) ep_in;
+  (void) cur_alt_setting;
+
+  // 16bit
+  if(bytesPerSample == 2)
+  {
+    uint16_t* pData_16 = (uint16_t*)((void*)test_buffer_audio);
+    for (size_t cnt = 0; cnt < sampFreq / (TUD_OPT_HIGH_SPEED ? 8000 : 1000); cnt++)
+    {
+      pData_16[cnt] = startVal++;
+    }
+  }
+  // 24bit in 32bit slot
+  else if(bytesPerSample == 4)
+  {
+    uint32_t* pData_32 = (uint32_t*)((void*)test_buffer_audio);
+    for (size_t cnt = 0; cnt < sampFreq / (TUD_OPT_HIGH_SPEED ? 8000 : 1000); cnt++)
+    {
+      pData_32[cnt] = (uint32_t)startVal++ << 16U;
+    }
+  }
+
+  return true;
+}
+
+bool tud_audio_set_itf_close_EP_cb(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  (void) rhport;
+  (void) p_request;
+  startVal = 0;
+
+  return true;
+}
+
+//--------------------------------------------------------------------+
+// BLINKING TASK
+//--------------------------------------------------------------------+
+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
+  start_ms += blink_interval_ms;
+
+  board_led_write(led_state);
+  led_state = 1 - led_state; // toggle
+}

examples/device/audio_test_multi_rate/src/plot_audio_samples.py

@@ -0,0 +1,37 @@
+import sounddevice as sd
+import matplotlib.pyplot as plt
+import numpy as np
+import platform
+import csv
+
+if __name__ == '__main__':
+
+    # If you got "ValueError: No input device matching", that is because your PC name example device
+    # differently from tested list below. Uncomment the next line to see full list and try to pick correct one
+    # print(sd.query_devices())
+
+    fs = 96000           # Sample rate
+    duration = 100e-3    # Duration of recording
+
+    if platform.system() == 'Windows':
+        # MME is needed since there are more than one MicNode device APIs (at least in Windows)
+        device = 'Microphone (MicNode) MME'
+    elif platform.system() == 'Darwin':
+        device = 'MicNode'
+    else:
+        device ='default'
+
+    myrecording = sd.rec(int(duration * fs), samplerate=fs, channels=1, dtype='int16', device=device)
+    print('Waiting...')
+    sd.wait()  # Wait until recording is finished
+    print('Done!')
+
+    time = np.arange(0, duration, 1 / fs)  # time vector
+    plt.plot(time, myrecording)
+    plt.xlabel('Time [s]')
+    plt.ylabel('Amplitude')
+    plt.title('MicNode')
+    plt.show()
+
+    samples = np.array(myrecording)
+    np.savetxt('Output.csv', samples, delimiter=",", fmt='%s')

examples/device/audio_test_multi_rate/src/tusb_config.h

@@ -0,0 +1,141 @@
+/*
+ * 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.
+ *
+ */
+
+#ifndef _TUSB_CONFIG_H_
+#define _TUSB_CONFIG_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "usb_descriptors.h"
+
+//--------------------------------------------------------------------+
+// Board Specific Configuration
+//--------------------------------------------------------------------+
+
+// RHPort number used for device can be defined by board.mk, default to port 0
+#ifndef BOARD_TUD_RHPORT
+#define BOARD_TUD_RHPORT      0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUD_MAX_SPEED
+#define BOARD_TUD_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
+#endif
+
+//--------------------------------------------------------------------
+// COMMON CONFIGURATION
+//--------------------------------------------------------------------
+
+// defined by compiler flags for flexibility
+#ifndef CFG_TUSB_MCU
+#error CFG_TUSB_MCU must be defined
+#endif
+
+#ifndef CFG_TUSB_OS
+#define CFG_TUSB_OS                 OPT_OS_NONE
+#endif
+
+#ifndef CFG_TUSB_DEBUG
+#define CFG_TUSB_DEBUG              0
+#endif
+
+// Enable Device stack
+#define CFG_TUD_ENABLED       1
+
+// Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUD_MAX_SPEED     BOARD_TUD_MAX_SPEED
+
+// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
+// #define CFG_TUSB_DEBUG           0
+
+/* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
+ * Tinyusb use follows macros to declare transferring memory so that they can be put
+ * into those specific section.
+ * e.g
+ * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
+ * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
+ */
+#ifndef CFG_TUSB_MEM_SECTION
+#define CFG_TUSB_MEM_SECTION
+#endif
+
+#ifndef CFG_TUSB_MEM_ALIGN
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
+#endif
+
+//--------------------------------------------------------------------
+// DEVICE CONFIGURATION
+//--------------------------------------------------------------------
+
+#ifndef CFG_TUD_ENDPOINT0_SIZE
+#define CFG_TUD_ENDPOINT0_SIZE    64
+#endif
+
+//------------- CLASS -------------//
+#define CFG_TUD_AUDIO             1
+#define CFG_TUD_CDC               0
+#define CFG_TUD_MSC               0
+#define CFG_TUD_HID               0
+#define CFG_TUD_MIDI              0
+#define CFG_TUD_VENDOR            0
+
+//--------------------------------------------------------------------
+// AUDIO CLASS DRIVER CONFIGURATION
+//--------------------------------------------------------------------
+
+#define CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE                         96000
+
+// How many formats are used, need to adjust USB descriptor if changed
+#define CFG_TUD_AUDIO_FUNC_1_N_FORMATS                               2
+
+// 16bit in 16bit slots
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX          2
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX                  16
+
+// 24bit in 32bit slots
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX          4
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX                  24
+
+// Have a look into audio_device.h for all configurations
+
+#define CFG_TUD_AUDIO_FUNC_1_DESC_LEN                                 TUD_AUDIO_MIC_ONE_CH_2_FORMAT_DESC_LEN
+#define CFG_TUD_AUDIO_FUNC_1_N_AS_INT                                 1                                       // 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_CTRL_BUF_SZ                              64                                      // Size of control request buffer
+
+#define CFG_TUD_AUDIO_ENABLE_EP_IN                                    1
+#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX                            1                                       // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below - be aware: for different number of channels you need another descriptor!
+
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN                        TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN                        TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
+
+#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX                             TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN)                  // Maximum EP IN size for all AS alternate settings used
+#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ                          CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _TUSB_CONFIG_H_ */

examples/device/audio_test_multi_rate/src/usb_descriptors.c

@@ -0,0 +1,185 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ * Copyright (c) 2022 HiFiPhile
+ *
+ * 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 "bsp/board_api.h"
+#include "tusb.h"
+#include "usb_descriptors.h"
+
+/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
+ * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
+ *
+ * Auto ProductID layout's Bitmap:
+ *   [MSB]     AUDIO | MIDI | HID | MSC | CDC          [LSB]
+ */
+#define _PID_MAP(itf, n)  ( (CFG_TUD_##itf) << (n) )
+#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(VENDOR, 5) )
+
+//--------------------------------------------------------------------+
+// Device Descriptors
+//--------------------------------------------------------------------+
+tusb_desc_device_t const desc_device =
+{
+    .bLength            = sizeof(tusb_desc_device_t),
+    .bDescriptorType    = TUSB_DESC_DEVICE,
+    .bcdUSB             = 0x0200,
+
+    // Use Interface Association Descriptor (IAD) for Audio
+    // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
+    .bDeviceClass       = TUSB_CLASS_MISC,
+    .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
+    .bDeviceProtocol    = MISC_PROTOCOL_IAD,
+    .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
+
+    .idVendor           = 0xCafe,
+    .idProduct          = USB_PID,
+    .bcdDevice          = 0x0100,
+
+    .iManufacturer      = 0x01,
+    .iProduct           = 0x02,
+    .iSerialNumber      = 0x03,
+
+    .bNumConfigurations = 0x01
+};
+
+// Invoked when received GET DEVICE DESCRIPTOR
+// Application return pointer to descriptor
+uint8_t const * tud_descriptor_device_cb(void)
+{
+  return (uint8_t const *) &desc_device;
+}
+
+//--------------------------------------------------------------------+
+// Configuration Descriptor
+//--------------------------------------------------------------------+
+enum
+{
+  ITF_NUM_AUDIO_CONTROL = 0,
+  ITF_NUM_AUDIO_STREAMING,
+  ITF_NUM_TOTAL
+};
+
+#define CONFIG_TOTAL_LEN    	(TUD_CONFIG_DESC_LEN + CFG_TUD_AUDIO * TUD_AUDIO_MIC_ONE_CH_2_FORMAT_DESC_LEN)
+
+#if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || CFG_TUSB_MCU == OPT_MCU_LPC40XX
+  // LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number
+  // 0 control, 1 In, 2 Bulk, 3 Iso, 4 In etc ...
+  #define EPNUM_AUDIO   0x03
+
+#elif TU_CHECK_MCU(OPT_MCU_NRF5X)
+  // nRF5x ISO can only be endpoint 8
+  #define EPNUM_AUDIO   0x08
+
+#else
+  #define EPNUM_AUDIO   0x01
+#endif
+
+uint8_t const desc_configuration[] =
+{
+    // Config number, interface count, string index, total length, attribute, power in mA
+    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
+
+    // Interface number, string index, EP Out & EP In address, EP size
+    TUD_AUDIO_MIC_ONE_CH_2_FORMAT_DESCRIPTOR(/*_itfnum*/ ITF_NUM_AUDIO_CONTROL, /*_stridx*/ 0, /*_epin*/ 0x80 | EPNUM_AUDIO)
+};
+
+TU_VERIFY_STATIC(sizeof(desc_configuration) == CONFIG_TOTAL_LEN, "Incorrect size");
+
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
+{
+  (void) index; // for multiple configurations
+  return desc_configuration;
+}
+
+//--------------------------------------------------------------------+
+// String Descriptors
+//--------------------------------------------------------------------+
+
+// String Descriptor Index
+enum {
+  STRID_LANGID = 0,
+  STRID_MANUFACTURER,
+  STRID_PRODUCT,
+  STRID_SERIAL,
+};
+
+// array of pointer to string descriptors
+char const* string_desc_arr [] =
+{
+    (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
+    "PaniRCorp",                   // 1: Manufacturer
+    "MicNode",                     // 2: Product
+    NULL,                          // 3: Serials will use unique ID if possible
+    "UAC2",                        // 4: Audio Interface
+
+};
+
+static uint16_t _desc_str[32 + 1];
+
+// Invoked when received GET STRING DESCRIPTOR request
+// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
+uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
+  (void) langid;
+  size_t chr_count;
+
+  switch ( index ) {
+    case STRID_LANGID:
+      memcpy(&_desc_str[1], string_desc_arr[0], 2);
+      chr_count = 1;
+      break;
+
+    case STRID_SERIAL:
+      chr_count = board_usb_get_serial(_desc_str + 1, 32);
+      break;
+
+    default:
+      // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+      // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
+
+      if ( !(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])) ) return NULL;
+
+      const char *str = string_desc_arr[index];
+
+      // Cap at max char
+      chr_count = strlen(str);
+      size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
+      if ( chr_count > max_count ) chr_count = max_count;
+
+      // Convert ASCII string into UTF-16
+      for ( size_t i = 0; i < chr_count; i++ ) {
+        _desc_str[1 + i] = str[i];
+      }
+      break;
+  }
+
+  // first byte is length (including header), second byte is string type
+  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
+
+  return _desc_str;
+}

examples/device/audio_test_multi_rate/src/usb_descriptors.h

@@ -0,0 +1,102 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2022 HiFiPhile
+ *
+ * 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.
+ *
+ */
+
+#ifndef _USB_DESCRIPTORS_H_
+#define _USB_DESCRIPTORS_H_
+
+// #include "tusb.h"
+
+// Unit numbers are arbitrary selected
+#define UAC2_ENTITY_CLOCK                   0x04
+#define UAC2_ENTITY_INPUT_TERMINAL          0x01
+#define UAC2_ENTITY_OUTPUT_TERMINAL         0x03
+#define UAC2_ENTITY_FEATURE_UNIT            0x02
+
+
+#define TUD_AUDIO_MIC_ONE_CH_2_FORMAT_DESC_LEN (TUD_AUDIO_DESC_IAD_LEN\
+    + TUD_AUDIO_DESC_STD_AC_LEN\
+    + TUD_AUDIO_DESC_CS_AC_LEN\
+    + TUD_AUDIO_DESC_CLK_SRC_LEN\
+    + TUD_AUDIO_DESC_INPUT_TERM_LEN\
+    + TUD_AUDIO_DESC_OUTPUT_TERM_LEN\
+    + TUD_AUDIO_DESC_FEATURE_UNIT_ONE_CHANNEL_LEN\
+    /* Interface 1, Alternate 0 */\
+    + TUD_AUDIO_DESC_STD_AS_INT_LEN\
+    /* Interface 1, Alternate 1 */\
+    + TUD_AUDIO_DESC_STD_AS_INT_LEN\
+    + TUD_AUDIO_DESC_CS_AS_INT_LEN\
+    + TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
+    + TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+    + TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN\
+    /* Interface 1, Alternate 2 */\
+    + TUD_AUDIO_DESC_STD_AS_INT_LEN\
+    + TUD_AUDIO_DESC_CS_AS_INT_LEN\
+    + TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
+    + TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+    + TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN)
+
+
+#define TUD_AUDIO_MIC_ONE_CH_2_FORMAT_DESCRIPTOR(_itfnum, _stridx, _epin) \
+  /* Standard Interface Association Descriptor (IAD) */\
+  TUD_AUDIO_DESC_IAD(/*_firstitf*/ _itfnum, /*_nitfs*/ 0x02, /*_stridx*/ 0x00),\
+  /* Standard AC Interface Descriptor(4.7.1) */\
+  TUD_AUDIO_DESC_STD_AC(/*_itfnum*/ _itfnum, /*_nEPs*/ 0x00, /*_stridx*/ _stridx),\
+  /* Class-Specific AC Interface Header Descriptor(4.7.2) */\
+  TUD_AUDIO_DESC_CS_AC(/*_bcdADC*/ 0x0200, /*_category*/ AUDIO_FUNC_MICROPHONE, /*_totallen*/ TUD_AUDIO_DESC_CLK_SRC_LEN+TUD_AUDIO_DESC_INPUT_TERM_LEN+TUD_AUDIO_DESC_OUTPUT_TERM_LEN+TUD_AUDIO_DESC_FEATURE_UNIT_ONE_CHANNEL_LEN, /*_ctrl*/ AUDIO_CS_AS_INTERFACE_CTRL_LATENCY_POS),\
+  /* Clock Source Descriptor(4.7.2.1) */\
+  TUD_AUDIO_DESC_CLK_SRC(/*_clkid*/ UAC2_ENTITY_CLOCK, /*_attr*/ AUDIO_CLOCK_SOURCE_ATT_INT_PRO_CLK, /*_ctrl*/ AUDIO_CTRL_RW << AUDIO_CLOCK_SOURCE_CTRL_CLK_FRQ_POS | AUDIO_CTRL_R << AUDIO_CLOCK_SOURCE_CTRL_CLK_VAL_POS, /*_assocTerm*/ 0x01,  /*_stridx*/ 0x00),\
+  /* Input Terminal Descriptor(4.7.2.4) */\
+  TUD_AUDIO_DESC_INPUT_TERM(/*_termid*/ UAC2_ENTITY_INPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_IN_GENERIC_MIC, /*_assocTerm*/ UAC2_ENTITY_OUTPUT_TERMINAL, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_nchannelslogical*/ 0x01, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_idxchannelnames*/ 0x00, /*_ctrl*/ AUDIO_CTRL_R << AUDIO_IN_TERM_CTRL_CONNECTOR_POS, /*_stridx*/ 0x00),\
+  /* Output Terminal Descriptor(4.7.2.5) */\
+  TUD_AUDIO_DESC_OUTPUT_TERM(/*_termid*/ UAC2_ENTITY_OUTPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_USB_STREAMING, /*_assocTerm*/ UAC2_ENTITY_INPUT_TERMINAL, /*_srcid*/ UAC2_ENTITY_FEATURE_UNIT, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_ctrl*/ 0x0000, /*_stridx*/ 0x00),\
+  /* Feature Unit Descriptor(4.7.2.8) */\
+  TUD_AUDIO_DESC_FEATURE_UNIT_ONE_CHANNEL(/*_unitid*/ UAC2_ENTITY_FEATURE_UNIT, /*_srcid*/ 0x01, /*_ctrlch0master*/ AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS, /*_ctrlch1*/ AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS, /*_stridx*/ 0x00),\
+  /* Standard AS Interface Descriptor(4.9.1) */\
+  /* Interface 1, Alternate 0 - default alternate setting with 0 bandwidth */\
+  TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)((_itfnum)+1), /*_altset*/ 0x00, /*_nEPs*/ 0x00, /*_stridx*/ 0x00),\
+  /* Standard AS Interface Descriptor(4.9.1) */\
+  /* Interface 1, Alternate 1 - alternate interface for data streaming */\
+  TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)((_itfnum)+1), /*_altset*/ 0x01, /*_nEPs*/ 0x01, /*_stridx*/ 0x00),\
+  /* Class-Specific AS Interface Descriptor(4.9.2) */\
+  TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ 0x01, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
+  /* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
+  TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX),\
+  /* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
+  TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN, /*_interval*/ 0x01),\
+  /* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
+  TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000),\
+  /* Interface 1, Alternate 2 - alternate interface for data streaming */\
+  TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)((_itfnum)+1), /*_altset*/ 0x02, /*_nEPs*/ 0x01, /*_stridx*/ 0x00),\
+  /* Class-Specific AS Interface Descriptor(4.9.2) */\
+  TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ 0x01, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
+  /* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
+  TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX),\
+  /* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
+  TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN, /*_interval*/ 0x01),\
+  /* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
+  TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000)
+
+
+#endif

examples/device/board_test/CMakeLists.txt

@@ -1,42 +1,32 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.17)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
-# Check for -DFAMILY=
-if(FAMILY MATCHES "^esp32s[2-3]")
-  # use BOARD-Directory name for project id
-  get_filename_component(PROJECT ${CMAKE_CURRENT_SOURCE_DIR} NAME)
-  set(PROJECT ${BOARD}-${PROJECT})
+# gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
+family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
 
-  # TOP is absolute path to root directory of TinyUSB git repo
-  set(TOP "../../..")
-  get_filename_component(TOP "${TOP}" REALPATH)
+project(${PROJECT} C CXX ASM)
 
-  project(${PROJECT})
+# Checks this example is valid for the family and initializes the project
+family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
 
-else()
-
-  # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
-  family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
-
-  project(${PROJECT})
-
-  # Checks this example is valid for the family and initializes the project
-  family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
-
-  add_executable(${PROJECT})
-
-  # Example source
-  target_sources(${PROJECT} PUBLIC
-          ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
-          )
-
-  # Example include
-  target_include_directories(${PROJECT} 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})
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
 endif()
+
+add_executable(${PROJECT})
+
+# Example source
+target_sources(${PROJECT} PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
+  )
+
+# Example include
+target_include_directories(${PROJECT} 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)

examples/device/board_test/Makefile

@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \

examples/device/board_test/src/CMakeLists.txt

@@ -1,17 +1,3 @@
-# FAMILY = esp32sx
 idf_component_register(SRCS "main.c"
                     INCLUDE_DIRS "."
-                    REQUIRES freertos soc)
-                    
-file(TO_NATIVE_PATH "${TOP}/hw/bsp/${FAMILY}/boards/${BOARD}/board.cmake" board_cmake)
-
-if(EXISTS ${board_cmake})
-    include(${board_cmake})
-endif()
-
-idf_component_get_property( FREERTOS_ORIG_INCLUDE_PATH freertos ORIG_INCLUDE_PATH)
-target_include_directories(${COMPONENT_TARGET} PUBLIC
-  "${FREERTOS_ORIG_INCLUDE_PATH}"
-  "${TOP}/hw"
-  "${TOP}/src"
-)
+                    REQUIRES boards tinyusb_src)

examples/device/board_test/src/main.c

@@ -27,10 +27,10 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "bsp/board.h"
+#include "bsp/board_api.h"
 
 //--------------------------------------------------------------------+
-// MACRO CONSTANT TYPEDEF PROTYPES
+// MACRO CONSTANT TYPEDEF PROTOTYPES
 //--------------------------------------------------------------------+
 
 /* Blink pattern
@@ -74,8 +74,6 @@ int main(void)
       board_uart_write(&ch, 1);
     }
   }
-
-  return 0;
 }
 
 #if CFG_TUSB_MCU == OPT_MCU_ESP32S2 || CFG_TUSB_MCU == OPT_MCU_ESP32S3

examples/device/cdc_dual_ports/CMakeLists.txt

@@ -1,28 +1,33 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.17)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
 # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
 family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
 
-project(${PROJECT})
+project(${PROJECT} C CXX ASM)
 
 # Checks this example is valid for the family and initializes the project
 family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
 
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
+endif()
+
 add_executable(${PROJECT})
 
 # Example source
 target_sources(${PROJECT} PUBLIC
-        ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
-        ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
-        )
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
+  )
 
 # Example include
 target_include_directories(${PROJECT} PUBLIC
-        ${CMAKE_CURRENT_SOURCE_DIR}/src
-        )
+  ${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(${PROJECT})
+# Configure compilation flags and libraries for the example without RTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_device_example(${PROJECT} noos)

examples/device/cdc_dual_ports/Makefile

@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \

examples/device/cdc_dual_ports/src/main.c

@@ -28,7 +28,7 @@
 #include <string.h>
 #include <ctype.h>
 
-#include "bsp/board.h"
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 //------------- prototypes -------------//
@@ -42,13 +42,15 @@ int main(void)
   // init device stack on configured roothub port
   tud_init(BOARD_TUD_RHPORT);
 
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
   while (1)
   {
     tud_task(); // tinyusb device task
     cdc_task();
   }
-
-  return 0;
 }
 
 // echo to either Serial0 or Serial1

examples/device/cdc_dual_ports/src/usb_descriptors.c

@@ -23,13 +23,14 @@
  *
  */
 
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 /* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
  * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
  *
  * Auto ProductID layout's Bitmap:
- *   [MSB]       MIDI | HID | MSC | CDC          [LSB]
+ *   [MSB]         HID | MSC | CDC          [LSB]
  */
 #define _PID_MAP(itf, n)  ( (CFG_TUD_##itf) << (n) )
 #define USB_PID           (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
@@ -213,52 +214,64 @@ uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
 // String Descriptors
 //--------------------------------------------------------------------+
 
+// String Descriptor Index
+enum {
+  STRID_LANGID = 0,
+  STRID_MANUFACTURER,
+  STRID_PRODUCT,
+  STRID_SERIAL,
+};
+
 // array of pointer to string descriptors
-char const* string_desc_arr [] =
+char const *string_desc_arr[] =
 {
   (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
   "TinyUSB",                     // 1: Manufacturer
   "TinyUSB Device",              // 2: Product
-  "123456",                      // 3: Serials, should use chip ID
+  NULL,                          // 3: Serials will use unique ID if possible
   "TinyUSB CDC",                 // 4: CDC Interface
 };
 
-static uint16_t _desc_str[32];
+static uint16_t _desc_str[32 + 1];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
-{
+uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
   (void) langid;
+  size_t chr_count;
 
-  uint8_t chr_count;
+  switch ( index ) {
+    case STRID_LANGID:
+      memcpy(&_desc_str[1], string_desc_arr[0], 2);
+      chr_count = 1;
+      break;
 
-  if ( index == 0)
-  {
-    memcpy(&_desc_str[1], string_desc_arr[0], 2);
-    chr_count = 1;
-  }else
-  {
-    // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
-    // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
+    case STRID_SERIAL:
+      chr_count = board_usb_get_serial(_desc_str + 1, 32);
+      break;
 
-    if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
+    default:
+      // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+      // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
 
-    const char* str = string_desc_arr[index];
+      if ( !(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])) ) return NULL;
 
-    // Cap at max char
-    chr_count = (uint8_t) strlen(str);
-    if ( chr_count > 31 ) chr_count = 31;
+      const char *str = string_desc_arr[index];
 
-    // Convert ASCII string into UTF-16
-    for(uint8_t i=0; i<chr_count; i++)
-    {
-      _desc_str[1+i] = str[i];
-    }
+      // Cap at max char
+      chr_count = strlen(str);
+      size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
+      if ( chr_count > max_count ) chr_count = max_count;
+
+      // Convert ASCII string into UTF-16
+      for ( size_t i = 0; i < chr_count; i++ ) {
+        _desc_str[1 + i] = str[i];
+      }
+      break;
   }
 
   // first byte is length (including header), second byte is string type
-  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8 ) | (2*chr_count + 2));
+  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
 
   return _desc_str;
 }

examples/device/cdc_msc/CMakeLists.txt

@@ -1,29 +1,35 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.17)
+set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
 # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
 family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
 
-project(${PROJECT})
+project(${PROJECT} C CXX ASM)
 
 # Checks this example is valid for the family and initializes the project
 family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
 
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
+endif()
+
 add_executable(${PROJECT})
 
 # Example source
 target_sources(${PROJECT} PUBLIC
-        ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
-        ${CMAKE_CURRENT_SOURCE_DIR}/src/msc_disk.c
-        ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
-        )
+  ${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
-        ${CMAKE_CURRENT_SOURCE_DIR}/src
-        )
+  ${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(${PROJECT})
+family_configure_device_example(${PROJECT} noos)

examples/device/cdc_msc/Makefile

@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \
@@ -6,7 +5,11 @@ INC += \
 	$(TOP)/hw \
 
 # Example source
-EXAMPLE_SOURCE += $(wildcard src/*.c)
+EXAMPLE_SOURCE += \
+  src/main.c \
+  src/msc_disk.c \
+  src/usb_descriptors.c \
+
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
 include ../../rules.mk

examples/device/cdc_msc/src/main.c

@@ -27,7 +27,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "bsp/board.h"
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 //--------------------------------------------------------------------+
@@ -58,6 +58,10 @@ int main(void)
   // init device stack on configured roothub port
   tud_init(BOARD_TUD_RHPORT);
 
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
   while (1)
   {
     tud_task(); // tinyusb device task
@@ -65,8 +69,6 @@ int main(void)
 
     cdc_task();
   }
-
-  return 0;
 }
 
 //--------------------------------------------------------------------+
@@ -97,7 +99,7 @@ void tud_suspend_cb(bool remote_wakeup_en)
 // Invoked when usb bus is resumed
 void tud_resume_cb(void)
 {
-  blink_interval_ms = BLINK_MOUNTED;
+  blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
 }
 
 

examples/device/cdc_msc/src/msc_disk.c

@@ -23,7 +23,7 @@
  *
  */
 
-#include "bsp/board.h"
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 #if CFG_TUD_MSC

examples/device/cdc_msc/src/usb_descriptors.c

@@ -23,6 +23,7 @@
  *
  */
 
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 /* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
@@ -41,35 +42,33 @@
 //--------------------------------------------------------------------+
 // Device Descriptors
 //--------------------------------------------------------------------+
-tusb_desc_device_t const desc_device =
-{
-  .bLength            = sizeof(tusb_desc_device_t),
-  .bDescriptorType    = TUSB_DESC_DEVICE,
-  .bcdUSB             = USB_BCD,
+tusb_desc_device_t const desc_device = {
+    .bLength            = sizeof(tusb_desc_device_t),
+    .bDescriptorType    = TUSB_DESC_DEVICE,
+    .bcdUSB             = USB_BCD,
 
-  // Use Interface Association Descriptor (IAD) for CDC
-  // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
-  .bDeviceClass       = TUSB_CLASS_MISC,
-  .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
-  .bDeviceProtocol    = MISC_PROTOCOL_IAD,
+    // Use Interface Association Descriptor (IAD) for CDC
+    // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
+    .bDeviceClass       = TUSB_CLASS_MISC,
+    .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
+    .bDeviceProtocol    = MISC_PROTOCOL_IAD,
 
-  .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
+    .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-  .idVendor           = USB_VID,
-  .idProduct          = USB_PID,
-  .bcdDevice          = 0x0100,
+    .idVendor           = USB_VID,
+    .idProduct          = USB_PID,
+    .bcdDevice          = 0x0100,
 
-  .iManufacturer      = 0x01,
-  .iProduct           = 0x02,
-  .iSerialNumber      = 0x03,
+    .iManufacturer      = 0x01,
+    .iProduct           = 0x02,
+    .iSerialNumber      = 0x03,
 
-  .bNumConfigurations = 0x01
+    .bNumConfigurations = 0x01
 };
 
 // Invoked when received GET DEVICE DESCRIPTOR
 // Application return pointer to descriptor
-uint8_t const * tud_descriptor_device_cb(void)
-{
+uint8_t const *tud_descriptor_device_cb(void) {
   return (uint8_t const *) &desc_device;
 }
 
@@ -77,8 +76,7 @@ uint8_t const * tud_descriptor_device_cb(void)
 // Configuration Descriptor
 //--------------------------------------------------------------------+
 
-enum
-{
+enum {
   ITF_NUM_CDC = 0,
   ITF_NUM_CDC_DATA,
   ITF_NUM_MSC,
@@ -95,7 +93,7 @@ enum
   #define EPNUM_MSC_OUT     0x05
   #define EPNUM_MSC_IN      0x85
 
-#elif CFG_TUSB_MCU == OPT_MCU_SAMG  || CFG_TUSB_MCU ==  OPT_MCU_SAMX7X
+#elif CFG_TUSB_MCU == OPT_MCU_SAMG || CFG_TUSB_MCU == OPT_MCU_SAMX7X
   // SAMG & SAME70 don't support a same endpoint number with different direction IN and OUT
   //    e.g EP1 OUT & EP1 IN cannot exist together
   #define EPNUM_CDC_NOTIF   0x81
@@ -140,67 +138,62 @@ enum
 #define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MSC_DESC_LEN)
 
 // full speed configuration
-uint8_t const desc_fs_configuration[] =
-{
-  // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
+uint8_t const desc_fs_configuration[] = {
+    // Config number, interface count, string index, total length, attribute, power in mA
+    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
-  // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64),
+    // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
+    TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64),
 
-  // Interface number, string index, EP Out & EP In address, EP size
-  TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC_OUT, EPNUM_MSC_IN, 64),
+    // Interface number, string index, EP Out & EP In address, EP size
+    TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC_OUT, EPNUM_MSC_IN, 64),
 };
 
 #if TUD_OPT_HIGH_SPEED
 // Per USB specs: high speed capable device must report device_qualifier and other_speed_configuration
 
 // high 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, 0x00, 100),
+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, 0x00, 100),
 
-  // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 512),
+    // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
+    TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 512),
 
-  // Interface number, string index, EP Out & EP In address, EP size
-  TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC_OUT, EPNUM_MSC_IN, 512),
+    // Interface number, string index, EP Out & EP In address, EP size
+    TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC_OUT, EPNUM_MSC_IN, 512),
 };
 
 // other speed configuration
 uint8_t desc_other_speed_config[CONFIG_TOTAL_LEN];
 
 // 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_qualifier_t),
-  .bDescriptorType    = TUSB_DESC_DEVICE_QUALIFIER,
-  .bcdUSB             = USB_BCD,
+tusb_desc_device_qualifier_t const desc_device_qualifier = {
+    .bLength            = sizeof(tusb_desc_device_qualifier_t),
+    .bDescriptorType    = TUSB_DESC_DEVICE_QUALIFIER,
+    .bcdUSB             = USB_BCD,
 
-  .bDeviceClass       = TUSB_CLASS_MISC,
-  .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
-  .bDeviceProtocol    = MISC_PROTOCOL_IAD,
+    .bDeviceClass       = TUSB_CLASS_MISC,
+    .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
+    .bDeviceProtocol    = MISC_PROTOCOL_IAD,
 
-  .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
-  .bNumConfigurations = 0x01,
-  .bReserved          = 0x00
+    .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;
+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)
-{
+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
@@ -220,13 +213,12 @@ uint8_t const* tud_descriptor_other_speed_configuration_cb(uint8_t index)
 // Invoked when received GET CONFIGURATION DESCRIPTOR
 // Application return pointer to descriptor
 // Descriptor contents must exist long enough for transfer to complete
-uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
-{
+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;
+  return (tud_speed_get() == TUSB_SPEED_HIGH) ? desc_hs_configuration : desc_fs_configuration;
 #else
   return desc_fs_configuration;
 #endif
@@ -236,53 +228,64 @@ uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
 // String Descriptors
 //--------------------------------------------------------------------+
 
-// array of pointer to string descriptors
-char const* string_desc_arr [] =
-{
-  (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
-  "TinyUSB",                     // 1: Manufacturer
-  "TinyUSB Device",              // 2: Product
-  "123456789012",                // 3: Serials, should use chip ID
-  "TinyUSB CDC",                 // 4: CDC Interface
-  "TinyUSB MSC",                 // 5: MSC Interface
+// String Descriptor Index
+enum {
+  STRID_LANGID = 0,
+  STRID_MANUFACTURER,
+  STRID_PRODUCT,
+  STRID_SERIAL,
 };
 
-static uint16_t _desc_str[32];
+// array of pointer to string descriptors
+char const *string_desc_arr[] = {
+    (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
+    "TinyUSB",                     // 1: Manufacturer
+    "TinyUSB Device",              // 2: Product
+    NULL,                          // 3: Serials will use unique ID if possible
+    "TinyUSB CDC",                 // 4: CDC Interface
+    "TinyUSB MSC",                 // 5: MSC Interface
+};
+
+static uint16_t _desc_str[32 + 1];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
-{
+uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
   (void) langid;
+  size_t chr_count;
 
-  uint8_t chr_count;
+  switch ( index ) {
+    case STRID_LANGID:
+      memcpy(&_desc_str[1], string_desc_arr[0], 2);
+      chr_count = 1;
+      break;
 
-  if ( index == 0)
-  {
-    memcpy(&_desc_str[1], string_desc_arr[0], 2);
-    chr_count = 1;
-  }else
-  {
-    // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
-    // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
+    case STRID_SERIAL:
+      chr_count = board_usb_get_serial(_desc_str + 1, 32);
+      break;
 
-    if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
+    default:
+      // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+      // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
 
-    const char* str = string_desc_arr[index];
+      if ( !(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])) ) return NULL;
 
-    // Cap at max char
-    chr_count = (uint8_t) strlen(str);
-    if ( chr_count > 31 ) chr_count = 31;
+      const char *str = string_desc_arr[index];
 
-    // Convert ASCII string into UTF-16
-    for(uint8_t i=0; i<chr_count; i++)
-    {
-      _desc_str[1+i] = str[i];
-    }
+      // Cap at max char
+      chr_count = strlen(str);
+      size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
+      if ( chr_count > max_count ) chr_count = max_count;
+
+      // Convert ASCII string into UTF-16
+      for ( size_t i = 0; i < chr_count; i++ ) {
+        _desc_str[1 + i] = str[i];
+      }
+      break;
   }
 
   // first byte is length (including header), second byte is string type
-  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8 ) | (2*chr_count + 2));
+  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
 
   return _desc_str;
 }

examples/device/cdc_msc_freertos/CMakeLists.txt

@@ -1,22 +1,35 @@
-cmake_minimum_required(VERSION 3.5)
-
-# TOP is absolute path to root directory of TinyUSB git repo
-# needed for esp32sx build. TODO could be removed later on
-set(TOP "../../..")
-get_filename_component(TOP "${TOP}" REALPATH)
+cmake_minimum_required(VERSION 3.17)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
 # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
 family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
 
-project(${PROJECT})
+project(${PROJECT} C CXX ASM)
 
 # Checks this example is valid for the family and initializes the project
 family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
 
-# Check for -DFAMILY=
-if(FAMILY MATCHES "^esp32s[2-3]")
-else()
-  message(FATAL_ERROR "Invalid FAMILY specified: ${FAMILY}")
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
 endif()
+
+add_executable(${PROJECT})
+
+# Example source
+target_sources(${PROJECT} PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/freertos_hook.c
+  ${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
+  ${CMAKE_CURRENT_SOURCE_DIR}/src
+  )
+
+# Configure compilation flags and libraries for the example with FreeRTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_device_example(${PROJECT} freertos)

examples/device/cdc_msc_freertos/Makefile

@@ -1,17 +1,14 @@
-DEPS_SUBMODULES += lib/FreeRTOS-Kernel
-
-include ../../../tools/top.mk
 include ../../make.mk
 
 FREERTOS_SRC = lib/FreeRTOS-Kernel
-FREERTOS_PORTABLE_SRC= $(FREERTOS_SRC)/portable/$(if $(USE_IAR),IAR,GCC)/$(FREERTOS_PORT)
+FREERTOS_PORTABLE_PATH= $(FREERTOS_SRC)/portable/$(if $(USE_IAR),IAR,GCC)
 
 INC += \
 	src \
 	src/FreeRTOSConfig \
 	$(TOP)/hw \
 	$(TOP)/$(FREERTOS_SRC)/include \
-	$(TOP)/$(FREERTOS_PORTABLE_SRC)
+	$(TOP)/$(FREERTOS_PORTABLE_SRC) \
 
 # Example source
 EXAMPLE_SOURCE = \
@@ -28,22 +25,22 @@ SRC_C += \
 	$(FREERTOS_SRC)/queue.c \
 	$(FREERTOS_SRC)/tasks.c \
 	$(FREERTOS_SRC)/timers.c \
-	$(subst ../../../,,$(wildcard ../../../$(FREERTOS_PORTABLE_SRC)/*.c))
+	$(subst $(TOP)/,,$(wildcard $(TOP)/$(FREERTOS_PORTABLE_SRC)/*.c))
 
 SRC_S += \
-	$(subst ../../../,,$(wildcard ../../../$(FREERTOS_PORTABLE_SRC)/*.s))
+	$(subst $(TOP)/,,$(wildcard $(TOP)/$(FREERTOS_PORTABLE_SRC)/*.s))
 
 # include heap manage if configSUPPORT_DYNAMIC_ALLOCATION = 1
 # SRC_C += $(FREERTOS_SRC)/portable/MemMang/heap_1.c
 # CFLAGS += -Wno-error=sign-compare
 
 # Suppress FreeRTOSConfig.h warnings
-GCC_CFLAGS += -Wno-error=redundant-decls
+CFLAGS_GCC += -Wno-error=redundant-decls
 
 # Suppress FreeRTOS source warnings
-GCC_CFLAGS += -Wno-error=cast-qual
+CFLAGS_GCC += -Wno-error=cast-qual
 
 # FreeRTOS (lto + Os) linker issue
-LDFLAGS += -Wl,--undefined=vTaskSwitchContext
+LDFLAGS_GCC += -Wl,--undefined=vTaskSwitchContext
 
 include ../../rules.mk

examples/device/cdc_msc_freertos/skip.txt

@@ -8,5 +8,6 @@ mcu:RP2040
 mcu:SAMD11
 mcu:SAMX7X
 mcu:VALENTYUSB_EPTRI
+mcu:RAXXX
 family:broadcom_32bit
 family:broadcom_64bit

examples/device/cdc_msc_freertos/src/CMakeLists.txt

@@ -1,35 +1,4 @@
+# This file is for ESP-IDF only
 idf_component_register(SRCS "main.c" "usb_descriptors.c" "msc_disk.c"
                     INCLUDE_DIRS "."
-                    REQUIRES freertos soc)
-
-file(TO_NATIVE_PATH "${TOP}/hw/bsp/${FAMILY}/boards/${BOARD}/board.cmake" board_cmake)
-
-if(EXISTS ${board_cmake})
-    include(${board_cmake})
-endif()
-
-target_include_directories(${COMPONENT_TARGET} PUBLIC
-  "${TOP}/hw"
-  "${TOP}/src"
-)
-
-target_compile_definitions(${COMPONENT_TARGET} PUBLIC
-  ESP_PLATFORM
-)
-
-target_sources(${COMPONENT_TARGET} PUBLIC
-  "${TOP}/src/tusb.c"
-  "${TOP}/src/common/tusb_fifo.c"
-  "${TOP}/src/device/usbd.c"
-  "${TOP}/src/device/usbd_control.c"
-  "${TOP}/src/class/cdc/cdc_device.c"
-  "${TOP}/src/class/dfu/dfu_rt_device.c"
-  "${TOP}/src/class/hid/hid_device.c"
-  "${TOP}/src/class/midi/midi_device.c"
-  "${TOP}/src/class/msc/msc_device.c"
-  "${TOP}/src/class/net/ecm_rndis_device.c"
-  "${TOP}/src/class/net/ncm_device.c"
-  "${TOP}/src/class/usbtmc/usbtmc_device.c"
-  "${TOP}/src/class/vendor/vendor_device.c"
-  "${TOP}/src/portable/synopsys/dwc2/dcd_dwc2.c"
-)
+                    REQUIRES boards tinyusb_src)

examples/device/cdc_msc_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h

@@ -81,7 +81,7 @@
 #define configUSE_MUTEXES                       1
 #define configUSE_RECURSIVE_MUTEXES             1
 #define configUSE_COUNTING_SEMAPHORES           1
-#define configQUEUE_REGISTRY_SIZE               2
+#define configQUEUE_REGISTRY_SIZE               4
 #define configUSE_QUEUE_SETS                    0
 #define configUSE_TIME_SLICING                  0
 #define configUSE_NEWLIB_REENTRANT              0

examples/device/cdc_msc_freertos/src/main.c

@@ -27,7 +27,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "bsp/board.h"
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 #if TU_CHECK_MCU(OPT_MCU_ESP32S2, OPT_MCU_ESP32S3)
@@ -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
@@ -136,9 +134,12 @@ void usb_device_task(void* param)
   // Otherwise it could cause kernel issue since USB IRQ handler does use RTOS queue API.
   tud_init(BOARD_TUD_RHPORT);
 
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
   // RTOS forever loop
-  while (1)
-  {
+  while (1) {
     // put this thread to waiting state until there is new events
     tud_task();
 
@@ -152,49 +153,46 @@ 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)
-{
-  xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
+void tud_resume_cb(void) {
+  if (tud_mounted()) {
+    xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
+  } else {
+    xTimerChangePeriod(blinky_tm, pdMS_TO_TICKS(BLINK_NOT_MOUNTED), 0);
+  }
 }
 
 //--------------------------------------------------------------------+
 // 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
@@ -217,32 +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;
 

examples/device/cdc_msc_freertos/src/msc_disk.c

@@ -23,7 +23,7 @@
  *
  */
 
-#include "bsp/board.h"
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 #if CFG_TUD_MSC

examples/device/cdc_msc_freertos/src/tusb_config.h

@@ -54,7 +54,9 @@
 #endif
 
 // This examples use FreeRTOS
+#ifndef CFG_TUSB_OS
 #define CFG_TUSB_OS           OPT_OS_FREERTOS
+#endif
 
 // Espressif IDF requires "freertos/" prefix in include path
 #if TU_CHECK_MCU(OPT_MCU_ESP32S2, OPT_MCU_ESP32S3)

examples/device/cdc_msc_freertos/src/usb_descriptors.c

@@ -23,6 +23,7 @@
  *
  */
 
+#include "bsp/board_api.h"
 #include "tusb.h"
 
 /* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
@@ -212,53 +213,65 @@ uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
 // String Descriptors
 //--------------------------------------------------------------------+
 
+// String Descriptor Index
+enum {
+  STRID_LANGID = 0,
+  STRID_MANUFACTURER,
+  STRID_PRODUCT,
+  STRID_SERIAL,
+};
+
 // array of pointer to string descriptors
-char const* string_desc_arr [] =
+char const *string_desc_arr[] =
 {
   (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
   "TinyUSB",                     // 1: Manufacturer
   "TinyUSB Device",              // 2: Product
-  "123456789012",                // 3: Serials, should use chip ID
+  NULL,                          // 3: Serials will use unique ID if possible
   "TinyUSB CDC",                 // 4: CDC Interface
   "TinyUSB MSC",                 // 5: MSC Interface
 };
 
-static uint16_t _desc_str[32];
+static uint16_t _desc_str[32 + 1];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
-{
+uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
   (void) langid;
+  size_t chr_count;
 
-  uint8_t chr_count;
+  switch ( index ) {
+    case STRID_LANGID:
+      memcpy(&_desc_str[1], string_desc_arr[0], 2);
+      chr_count = 1;
+      break;
 
-  if ( index == 0)
-  {
-    memcpy(&_desc_str[1], string_desc_arr[0], 2);
-    chr_count = 1;
-  }else
-  {
-    // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
-    // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
+    case STRID_SERIAL:
+      chr_count = board_usb_get_serial(_desc_str + 1, 32);
+      break;
 
-    if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
+    default:
+      // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+      // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
 
-    const char* str = string_desc_arr[index];
+      if ( !(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])) ) return NULL;
 
-    // Cap at max char
-    chr_count = (uint8_t) strlen(str);
-    if ( chr_count > 31 ) chr_count = 31;
+      const char *str = string_desc_arr[index];
 
-    // Convert ASCII string into UTF-16
-    for(uint8_t i=0; i<chr_count; i++)
-    {
-      _desc_str[1+i] = str[i];
-    }
+      // Cap at max char
+      chr_count = strlen(str);
+      size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
+      if ( chr_count > max_count ) chr_count = max_count;
+
+      // Convert ASCII string into UTF-16
+      for ( size_t i = 0; i < chr_count; i++ ) {
+        _desc_str[1 + i] = str[i];
+      }
+      break;
   }
 
   // first byte is length (including header), second byte is string type
-  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8 ) | (2*chr_count + 2));
+  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
 
   return _desc_str;
 }

examples/device/cdc_uac2/CMakeLists.txt

@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 3.17)
+
+include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
+
+# gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
+family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
+
+project(${PROJECT} C CXX ASM)
+
+# Checks this example is valid for the family and initializes the project
+family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
+
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
+endif()
+
+add_executable(${PROJECT})
+
+# Example source
+target_sources(${PROJECT} PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/cdc_app.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/uac2_app.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
+  )
+
+# Example include
+target_include_directories(${PROJECT} 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)
+
+# Uncomment me to enable UART based debugging
+# pico_enable_stdio_uart(${PROJECT} 1)

examples/device/cdc_uac2/Makefile

@@ -0,0 +1,16 @@
+include ../../make.mk
+
+INC += \
+	src \
+	$(TOP)/hw \
+
+# Example source
+EXAMPLE_SOURCE += \
+  src/cdc_app.c \
+  src/main.c \
+  src/uac2_app.c \
+  src/usb_descriptors.c \
+
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+
+include ../../rules.mk

examples/device/cdc_uac2/README.md

@@ -0,0 +1,52 @@
+#### Composite CDC + UAC2 on Pico
+
+This example provides a composite CDC + UAC2 device on top of a Raspberry Pi
+Pico board.
+
+
+#### Use Cases
+
+- The CDC + UAC2 composite device happens to be important, especially in the
+  amateur radio community.
+
+  Modern radios (`rigs`) like Icom IC-7300 + IC-705 expose a sound card and a
+  serial device (`composite device`) to the computer over a single USB cable.
+  This allows for Audio I/O and CAT control over a single USB cable which is
+  very convenient.
+
+  By including and maintaining this example in TinyUSB repository, we enable
+  the amateur radio community to build (`homebrew`) radios with similar
+  functionality as the (expensive) commercial rigs.
+
+  This PR is important in bridging this specific gap between the commercial
+  rigs and homebrew equipment.
+
+- https://digirig.net/digirig-mobile-rev-1-9/ is a digital interface for
+  interfacing radios (that lack an inbuilt digital interface) with computers.
+  Digirig Mobile works brilliantly (is OSS!) and is a big improvement over
+  traditional digital interfaces (like the SignaLink USB Interface). By using a
+  Raspberry Pi Pico powered CDC + UAC2 composite device, we can simplify the
+  Digirig Mobile schematic, drastically reduce the manufacturing cost, and
+  (again) enable the homebrewers community to homebrew a modern digital interface
+  with ease themselves.
+
+
+#### Build Steps
+
+```
+cd examples/device/cdc_uac2
+
+export PICO_SDK_PATH=$HOME/pico-sdk
+
+cmake -DFAMILY=rp2040 pico .
+
+cmake -DFAMILY=rp2040 -DCMAKE_BUILD_TYPE=Debug # use this for debugging
+
+make BOARD=raspberry_pi_pico all
+```
+
+
+#### Development Notes
+
+Please try to keep this code synchronized with the `uac2_headset` example
+included in this repository.

examples/device/cdc_uac2/src/cdc_app.c

@@ -0,0 +1,72 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ * Copyright (c) 2022 Angel Molina (angelmolinu@gmail.com)
+ *
+ * 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 "bsp/board_api.h"
+#include "tusb.h"
+#include "common.h"
+
+// 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) itf;
+  (void) rts;
+
+  if (dtr)
+  {
+    // Terminal connected
+  }
+  else
+  {
+    // Terminal disconnected
+  }
+}
+
+// Invoked when CDC interface received data from host
+void tud_cdc_rx_cb(uint8_t itf)
+{
+  uint8_t buf[64];
+  uint32_t count;
+
+  // connected() check for DTR bit
+  // Most but not all terminal client set this when making connection
+  if (tud_cdc_connected())
+  {
+    if (tud_cdc_available()) // data is available
+    {
+      count = tud_cdc_n_read(itf, buf, sizeof(buf));
+      (void) count;
+
+      tud_cdc_n_write(itf, buf, count);
+      tud_cdc_n_write_flush(itf);
+      // dummy code to check that cdc serial is responding
+      board_led_write(0);
+      board_delay(50);
+      board_led_write(1);
+      board_delay(50);
+      board_led_write(0);
+    }
+  }
+}