Merge branch 'master' of https://github.com/hathach/tinyusb into rx_fb

2025-04-16 05:42:56 +00:00 · 2024-07-28 11:59:52 +02:00 · 2024-07-28 11:59:52 +02:00 · f48a4567a6
commit f48a4567a6
parent b0f5422262 cfbdc44a8d
160 changed files with 4439 additions and 2919 deletions
--- a/.github/actions/setup_toolchain/download/action.yml
+++ b/.github/actions/setup_toolchain/download/action.yml
@ -24,7 +24,13 @@ runs:
      run: |
        mkdir -p ~/cache/${{ inputs.toolchain }}
        wget --progress=dot:giga ${{ inputs.toolchain_url }} -O toolchain.tar.gz
-        tar -C ~/cache/${{ inputs.toolchain }} -xaf toolchain.tar.gz
+        if [[ ${{ inputs.toolchain }} == rx-gcc ]]; then
+          mv toolchain.tar.gz toolchain.run
+          chmod +x toolchain.run
+          ./toolchain.run -p ~/cache/${{ inputs.toolchain }}/gnurx -y
+        else
+          tar -C ~/cache/${{ inputs.toolchain }} -xaf toolchain.tar.gz
+        fi
      shell: bash

    - name: Set Toolchain Path
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -51,14 +51,15 @@ jobs:
  # Build CMake
  # ---------------------------------------
  cmake:
+    # if: false
    needs: set-matrix
    uses: ./.github/workflows/build_util.yml
    strategy:
      fail-fast: false
      matrix:
        toolchain:
+          # - 'arm-clang' is built by circle-ci
          - 'aarch64-gcc'
-          # - 'arm-clang' # clang is built by circle-ci
          - 'arm-gcc'
          - 'msp430-gcc'
          - 'riscv-gcc'
@ -73,18 +74,19 @@ jobs:
  # Build Make
  # ---------------------------------------
  make:
-    #if: github.event_name == 'pull_request'
+    # if: false
    needs: set-matrix
    uses: ./.github/workflows/build_util.yml
    strategy:
      fail-fast: false
      matrix:
        toolchain:
+          # 'arm-clang' is built by circle-ci
          - 'aarch64-gcc'
-          # - 'arm-clang' # clang is built by circle-ci
          - 'arm-gcc'
          - 'msp430-gcc'
          - 'riscv-gcc'
+          - 'rx-gcc'
    with:
      build-system: 'make'
      toolchain: ${{ matrix.toolchain }}
@ -112,6 +114,7 @@ jobs:
  # Build Espressif
  # ---------------------------------------
  espressif:
+    # if: false
    uses: ./.github/workflows/build_util.yml
    strategy:
      fail-fast: false
@ -131,6 +134,7 @@ jobs:
  # Build IAR on HFP self-hosted
  # ---------------------------------------
  arm-iar:
+    # if: false
    if: github.repository_owner == 'hathach'
    needs: set-matrix
    runs-on: [self-hosted, Linux, X64, hifiphile]
--- a/.github/workflows/build_renesas.yml
+++ b/.github/workflows/build_renesas.yml
@ -1,66 +0,0 @@
-name: Build Renesas
-
-on:
-  workflow_dispatch:
-  push:
-    paths:
-      - 'src/**'
-      - 'examples/**'
-      - 'lib/**'
-      - 'hw/**'
-      - 'tools/get_deps.py'
-      - '.github/workflows/build_renesas.yml'
-  pull_request:
-    branches: [ master ]
-    paths:
-      - 'src/**'
-      - 'examples/**'
-      - 'lib/**'
-      - 'hw/**'
-      - 'tools/get_deps.py'
-      - '.github/workflows/build_renesas.yml'
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  build-rx:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        family:
-        # Alphabetical order
-        - 'rx'
-    steps:
-    - name: Checkout TinyUSB
-      uses: actions/checkout@v4
-
-    - name: Set Toolchain URL
-      run: echo >> $GITHUB_ENV TOOLCHAIN_URL=http://gcc-renesas.com/downloads/get.php?f=rx/8.3.0.202004-gnurx/gcc-8.3.0.202004-GNURX-ELF.run
-
-    - name: Cache Toolchain
-      uses: actions/cache@v4
-      id: cache-toolchain
-      with:
-        path: ~/cache/
-        key: ${{ runner.os }}-21-03-30-${{ env.TOOLCHAIN_URL }}
-
-    - name: Install Toolchain
-      if: steps.cache-toolchain.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p ~/cache/toolchain/gnurx
-        wget --progress=dot:mega $TOOLCHAIN_URL -O toolchain.run
-        chmod +x toolchain.run
-        ./toolchain.run -p ~/cache/toolchain/gnurx -y
-
-    - name: Set Toolchain Path
-      run: echo >> $GITHUB_PATH `echo ~/cache/toolchain/*/bin`
-
-    - name: Get Dependencies
-      run: |
-        python3 tools/get_deps.py ${{ matrix.family }}
-
-    - name: Build
-      run: python3 tools/build.py -s make ${{ matrix.family }}
--- a/.github/workflows/ci_set_matrix.py
+++ b/.github/workflows/ci_set_matrix.py
@ -7,14 +7,16 @@ toolchain_list = {
    "arm-iar": "",
    "arm-gcc": "",
    "msp430-gcc": "http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPGCC/9_2_0_0/export/msp430-gcc-9.2.0.50_linux64.tar.bz2",
-    "riscv-gcc": "https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/download/v13.2.0-2/xpack-riscv-none-elf-gcc-13.2.0-2-linux-x64.tar.gz"
+    "riscv-gcc": "https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/download/v13.2.0-2/xpack-riscv-none-elf-gcc-13.2.0-2-linux-x64.tar.gz",
+    "rx-gcc": "http://gcc-renesas.com/downloads/get.php?f=rx/8.3.0.202004-gnurx/gcc-8.3.0.202004-GNURX-ELF.run",
 }

 # family: [supported toolchain]
 family_list = {
    "broadcom_32bit": ["arm-gcc"],
    "broadcom_64bit": ["aarch64-gcc"],
-    "ch32v20x ch32v307 fomu gd32vf103": ["riscv-gcc"],
+    "ch32v10x ch32v20x ch32v307 fomu gd32vf103": ["riscv-gcc"],
+    "da1469x": ["arm-gcc"],
    "imxrt": ["arm-gcc", "arm-clang"],
    "kinetis_k kinetis_kl kinetis_k32l2": ["arm-gcc", "arm-clang"],
    "lpc11 lpc13 lpc15": ["arm-gcc", "arm-clang"],
@ -27,6 +29,7 @@ family_list = {
    "nrf": ["arm-gcc", "arm-clang"],
    "ra": ["arm-gcc"],
    "rp2040": ["arm-gcc"],
+    "rx": ["rx-gcc"],
    "samd11 samd21 saml2x": ["arm-gcc", "arm-clang"],
    "samd5x_e5x samg": ["arm-gcc", "arm-clang"],
    "stm32f0 stm32f1 stm32f2 stm32f3": ["arm-gcc", "arm-clang", "arm-iar"],
@ -34,7 +37,7 @@ family_list = {
    "stm32f7": ["arm-gcc", "arm-clang", "arm-iar"],
    "stm32g0 stm32g4 stm32h5": ["arm-gcc", "arm-clang", "arm-iar"],
    "stm32h7": ["arm-gcc", "arm-clang", "arm-iar"],
-    "stm32l4 stm32u5 stm32wb": ["arm-gcc", "arm-clang", "arm-iar"],
+    "stm32l0 stm32l4 stm32u5 stm32wb": ["arm-gcc", "arm-clang", "arm-iar"],
    "xmc4000": ["arm-gcc"],
 }

--- a/.github/workflows/hil_test.yml
+++ b/.github/workflows/hil_test.yml
@ -17,6 +17,9 @@ concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

+env:
+  HIL_JSON: test/hil/rpi.json
+
 jobs:
  # ---------------------------------------
  # Build Non Espressif
@ -36,7 +39,7 @@ jobs:
          sudo apt install -y jq

          # Non-Espresif boards
-          BOARDS_LIST=$(jq -r '.boards[] | select(.flasher != "esptool") | "-b " + .name' test/hil/pi4.json | tr '\n' ' ')
+          BOARDS_LIST=$(jq -r '.boards[] | select(.flasher != "esptool") | "-b " + .name' ${{ env.HIL_JSON }} | tr '\n' ' ')
          echo "BOARDS_LIST=$BOARDS_LIST"
          echo "BOARDS_LIST=$BOARDS_LIST" >> $GITHUB_ENV
          echo "BOARDS_LIST=$BOARDS_LIST" >> $GITHUB_OUTPUT
@ -57,7 +60,7 @@ jobs:
      - name: Upload Artifacts for Hardware Testing
        uses: actions/upload-artifact@v4
        with:
-          name: hil_pi4
+          name: hil_rpi
          path: |
            cmake-build/cmake-build-*/*/*/*.elf
            cmake-build/cmake-build-*/*/*/*.bin
@ -78,7 +81,7 @@ jobs:
        run: |
          sudo apt install -y jq
          # Espressif boards
-          BOARDS_LIST=$(jq -r '.boards[] | select(.flasher == "esptool") | "-b " + .name' test/hil/pi4.json | tr '\n' ' ')
+          BOARDS_LIST=$(jq -r '.boards[] | select(.flasher == "esptool") | "-b " + .name' ${{ env.HIL_JSON }} | tr '\n' ' ')
          echo "BOARDS_LIST=$BOARDS_LIST"
          echo "BOARDS_LIST=$BOARDS_LIST" >> $GITHUB_ENV
          echo "BOARDS_LIST=$BOARDS_LIST" >> $GITHUB_OUTPUT
@ -102,7 +105,7 @@ jobs:
      - name: Upload Artifacts for Hardware Testing
        uses: actions/upload-artifact@v4
        with:
-          name: hil_pi4_esp
+          name: hil_rpi_esp
          path: |
            cmake-build/cmake-build-*/*/*/*.bin
            cmake-build/cmake-build-*/*/*/bootloader/bootloader.bin
@ -112,14 +115,14 @@ jobs:

  # ---------------------------------------
  # Hardware in the loop (HIL)
-  # Current self-hosted instance is running on an RPI4. For attached hardware checkout test/hil/pi4.json
+  # self-hosted running on an RPI. For attached hardware checkout test/hil/rpi.json
  # ---------------------------------------
-  hil-pi4:
+  hil-rpi:
    if: github.repository_owner == 'hathach'
    needs:
      - build
      - build-esp
-    runs-on: [self-hosted, rp2040, nrf52840, esp32s3, hardware-in-the-loop]
+    runs-on: [self-hosted, ARM64, rpi, hardware-in-the-loop]
    env:
      BOARDS_LIST: "${{ needs.build.outputs.BOARDS_LIST }} ${{ needs.build-esp.outputs.BOARDS_LIST }}"
    steps:
@ -129,12 +132,12 @@ jobs:
          rm -rf "${{ github.workspace }}"
          mkdir -p "${{ github.workspace }}"

-        # USB bus on rpi4 is not stable, reset it before testing
-      - name: Reset USB bus
-        run: |
-          # lsusb -t
-          # reset VIA Labs 2.0 hub
-          sudo usbreset 001/002
+        # USB bus on rpi is not stable, reset it before testing
+#      - name: Reset USB bus
+#        run: |
+#          # reset VIA Labs 2.0 hub
+#          sudo usbreset 001/002
+#          lsusb -t

      - name: Checkout TinyUSB
        uses: actions/checkout@v4
@ -144,13 +147,13 @@ jobs:
      - name: Download Artifacts
        uses: actions/download-artifact@v4
        with:
-          name: hil_pi4
+          name: hil_rpi
          path: cmake-build

      - name: Download Artifacts
        uses: actions/download-artifact@v4
        with:
-          name: hil_pi4_esp
+          name: hil_rpi_esp
          path: cmake-build

      - name: Test on actual hardware
@ -159,4 +162,4 @@ jobs:
          echo "::group::{cmake-build contents}"
          tree cmake-build
          echo "::endgroup::"
-          python3 test/hil/hil_test.py $BOARDS_LIST pi4.json
+          python3 test/hil/hil_test.py $BOARDS_LIST ${{ env.HIL_JSON }}
--- a/.gitignore
+++ b/.gitignore
@ -31,62 +31,4 @@ cov-int
 __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_h5
-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/stm32h5xx_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/ch32v20x
-hw/mcu/wch/ch32v307
-hw/mcu/wch/ch32f20x
-lib/CMSIS_5
-lib/FreeRTOS-Kernel
-lib/lwip
-lib/sct_neopixel
-tools/uf2
+.PVS-Studio
--- a/.idea/cmake.xml
+++ b/.idea/cmake.xml
@ -3,6 +3,7 @@
  <component name="CMakeSharedSettings">
    <configurations>
      <configuration PROFILE_NAME="pico" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberry_pi_pico -DLOG=1" />
+      <configuration PROFILE_NAME="pico pio-host" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberry_pi_pico -DLOG=1 -DCFLAGS_CLI=&quot;-DCFG_TUH_RPI_PIO_USB=1&quot;" />
      <configuration PROFILE_NAME="feather_rp2040" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=pico_sdk -DPICO_BOARD=adafruit_feather_rp2040 -DLOG=2" />
      <configuration PROFILE_NAME="feather_rp2040_max3421" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=feather_rp2040_max3421 -DLOG=2" />
      <configuration PROFILE_NAME="metro_rp2040" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=pico_sdk -DPICO_BOARD=adafruit_metro_rp2040 -DLOG=2 -DMAX3421_HOST=1" />
@ -65,14 +66,14 @@
      <configuration PROFILE_NAME="feather_m0_express" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=feather_m0_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="feather_m4_express" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=feather_m4_express -DLOG=3 -DLOGGER=RTT -DMAX3421_HOST=1" />
-      <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="itsybitsy_m4" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=itsybitsy_m4 -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="metro_m4_express" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=metro_m4_express" />
+      <configuration PROFILE_NAME="itsybitsy_m4" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=itsybitsy_m4" />
      <configuration PROFILE_NAME="same54_xplained" ENABLED="false" GENERATION_OPTIONS="-DBOARD=same54_xplained -DLOG=2 -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="feather_nrf52840_express" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=feather_nrf52840_express -DLOG=1 -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="metro m7 1011 sd" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=metro_m7_1011_sd -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
-      <configuration PROFILE_NAME="metro m7 1011" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=metro_m7_1011 -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="metro_m7_1011" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=metro_m7_1011 -DLOG=3 -DLOGGER=RTT" />
      <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="rt1170 evkb" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=mimxrt1170_evkb -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
@ -105,17 +106,18 @@
      <configuration PROFILE_NAME="stm32u575nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32u575nucleo -DLOG=2 -DLOGGER=RTT" />
      <configuration PROFILE_NAME="stm32u5a5nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32u5a5nucleo -DLOG=3 -DLOGGER=RTT" />
      <configuration PROFILE_NAME="stm32wb55nucleo" ENABLED="false" GENERATION_OPTIONS="-DBOARD=stm32wb55nucleo" />
-      <configuration PROFILE_NAME="ra2a1" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra2a1_ek -DLOG=3 -DLOGGER=RTT" />
-      <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="ra2a1_ek" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra2a1_ek -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="ra4m1_ek" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra4m1_ek -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="ra6m1_ek" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra6m1_ek -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="ra6m5_ek" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ra6m5_ek -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
+      <configuration PROFILE_NAME="ra6m5_ek 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="msp430f5529" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=msp_exp430f5529lp" />
      <configuration PROFILE_NAME="raspberrypi_zero" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberrypi_zero -DLOG=2" />
      <configuration PROFILE_NAME="raspberrypi_cm4" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberrypi_cm4 -DLOG=2" />
      <configuration PROFILE_NAME="raspberrypi_zero2" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberrypi_zero2 -DLOG=2" />
+      <configuration PROFILE_NAME="lpcxpresso11u37" ENABLED="false" GENERATION_OPTIONS="-DBOARD=lpcxpresso11u37" />
      <configuration PROFILE_NAME="lpcxpresso11u68" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=lpcxpresso11u68 -DLOG=2 -DLOGGER=RTT" />
      <configuration PROFILE_NAME="lpcxpresso1347" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=lpcxpresso1347 -DLOG=2 -DLOGGER=RTT" />
      <configuration PROFILE_NAME="lpcxpresso1549" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=lpcxpresso1549 -DLOG=2 -DLOGGER=RTT" />
@ -131,10 +133,12 @@
      <configuration PROFILE_NAME="fomu" ENABLED="false" GENERATION_OPTIONS="-DBOARD=fomu" />
      <configuration PROFILE_NAME="sipeed_longan_nano" ENABLED="false" GENERATION_OPTIONS="-DBOARD=sipeed_longan_nano" />
      <configuration PROFILE_NAME="nanoch32v203" ENABLED="false" GENERATION_OPTIONS="-DBOARD=nanoch32v203" />
-      <configuration PROFILE_NAME="ch32v203_r0_1v0" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203_r0_1v0" />
-      <configuration PROFILE_NAME="ch32v203_r0_1v0 USBFS" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203_r0_1v0 -DPORT=1" />
+      <configuration PROFILE_NAME="ch32v203c_r0_1v0" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203c_r0_1v0" />
+      <configuration PROFILE_NAME="ch32v203c_r0_1v0 USBFS" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203c_r0_1v0 -DPORT=1" />
+      <configuration PROFILE_NAME="ch32v203g_r0_1v0" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=ch32v203g_r0_1v0" />
      <configuration PROFILE_NAME="ch32v307v_r1_1v0" ENABLED="false" GENERATION_OPTIONS="-DBOARD=ch32v307v_r1_1v0 -DLOG=2" />
      <configuration PROFILE_NAME="ch32v307v_r1_1v0 USBFS" ENABLED="false" GENERATION_OPTIONS="-DBOARD=ch32v307v_r1_1v0 -DSPEED=full" />
+      <configuration PROFILE_NAME="da14695_dk_usb" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=da14695_dk_usb" />
    </configurations>
  </component>
 </project>
--- a/README.rst
+++ b/README.rst
@ -151,8 +151,9 @@ Following CPUs are supported, check out `Supported Devices`_ for comprehensive l
 +--------------+------------------------------------------------------------+
 | Sony         | CXD56                                                      |
 +--------------+------------------------------------------------------------+
-| ST STM32     | F0, F1, F2, F3, F4, F7, H5, H7, G0, G4, L0, L1, L4, L4+,   |
-|              | U5, WB                                                     |
+| ST STM32     | F0, F1, F2, F3, F4, F7, G0, G4, H5, H7,                    |
+|              |                                                            |
+|              | L0, L1, L4, L4+, L5, U5, WB                                |
 +--------------+------------------------------------------------------------+
 | TI           | MSP430, MSP432E4, TM4C123                                  |
 +--------------+------------------------------------------------------------+
--- a/docs/reference/supported.rst
+++ b/docs/reference/supported.rst
@ -104,21 +104,33 @@ Supported MCUs
 |              +-----------------------+--------+------+-----------+-------------------+--------------+
 |              | F7                    | ✔      |      | ✔         | dwc2              |              |
 |              +-----------------------+--------+------+-----------+-------------------+--------------+
-|              | H7                    | ✔      |      | ✔         | dwc2              |              |
+|              | G0                    | ✔      |      | ✖         | stm32_fsdev       |              |
 |              +-----------------------+--------+------+-----------+-------------------+--------------+
 |              | G4                    | ✔      | ✖    | ✖         | stm32_fsdev       |              |
 |              +-----------------------+--------+------+-----------+-------------------+--------------+
-|              | L0, L1                | ✔      | ✖    | ✖         | stm32_fsdev       |              |
+|              | H5                    | ✔      |      | ✖         | stm32_fsdev       |              |
+|              +-----------------------+--------+------+-----------+-------------------+--------------+
+|              | H7                    | ✔      |      | ✔         | dwc2              |              |
+|              +-----------------------+--------+------+-----------+-------------------+--------------+
+|              | L0                    | ✔      | ✖    | ✖         | stm32_fsdev       |              |
+|              +-----------------------+--------+------+-----------+-------------------+--------------+
+|              | L1                    | ✔      | ✖    | ✖         | stm32_fsdev       |              |
 |              +----+------------------+--------+------+-----------+-------------------+--------------+
 |              | L4 | 4x2, 4x3         | ✔      | ✖    | ✖         | stm32_fsdev       |              |
 |              |    +------------------+--------+------+-----------+-------------------+--------------+
-|              |    | 4x5, 4x6         | ✔      |      |           | dwc2              |              |
+|              |    | 4x5, 4x6         | ✔      |      | ✖         | dwc2              |              |
 |              +----+------------------+--------+------+-----------+-------------------+--------------+
-|              | L4+                   | ✔      |      |           | dwc2              |              |
+|              | L4+                   | ✔      |      | ✖         | dwc2              |              |
 |              +-----------------------+--------+------+-----------+-------------------+--------------+
-|              | U5                    | ✔      |      | ✔         | dwc2              |              |
-|              +-----------------------+--------+------+-----------+-------------------+--------------+
-|              | WBx5                  | ✔      |      |           | stm32_fsdev       |              |
+|              | L5                    | ✔      | ✖    | ✖         | stm32_fsdev       |              |
+|              +----+------------------+--------+------+-----------+-------------------+--------------+
+|              | U5 | 535, 545         | ✔      |      | ✖         | stm32_fsdev       |              |
+|              |    +------------------+--------+------+-----------+-------------------+--------------+
+|              |    | 575, 585         | ✔      |      | ✖         | dwc2              |              |
+|              |    +------------------+--------+------+-----------+-------------------+--------------+
+|              |    | 59x,5Ax,5Fx,5Gx  | ✔      |      | ✔         | dwc2              |              |
+|              +----+------------------+--------+------+-----------+-------------------+--------------+
+|              | WBx5                  | ✔      | ✖    | ✖         | stm32_fsdev       |              |
 +--------------+-----------------------+--------+------+-----------+-------------------+--------------+
 | TI           | MSP430                | ✔      | ✖    | ✖         | msp430x5xx        |              |
 |              +-----------------------+--------+------+-----------+-------------------+--------------+
@ -129,7 +141,9 @@ Supported MCUs
 | ValentyUSB   | eptri                 | ✔      | ✖    | ✖         | eptri             |              |
 +--------------+-----------------------+--------+------+-----------+-------------------+--------------+
 | WCH          | CH32F20x              | ✔      |      | ✔         | ch32f205          |              |
+|              +-----------------------+--------+------+-----------+-------------------+--------------+
 |              | CH32V20x              | ✔      |      | ✖         | ch32v20x          |              |
+|              +-----------------------+--------+------+-----------+-------------------+--------------+
 |              | CH32V307              | ✔      |      | ✔         | ch32v307          |              |
 +--------------+-----------------------+--------+------+-----------+-------------------+--------------+

@ -137,11 +151,12 @@ Supported MCUs
 Table Legend
 ------------

-= ===================
-✔ Supported
-⚠ WIP/partial support
-✖ Not supported
-= ===================
+========= =========================
+✔         Supported
+⚠         Partial support
+✖         Not supported by hardware
+\[empty\] Unknown
+========= =========================

 Supported Boards
 ================
--- a/examples/build_system/cmake/cpu/cortex-m33-nodsp.cmake
+++ b/examples/build_system/cmake/cpu/cortex-m33-nodsp.cmake
@ -0,0 +1,25 @@
+if (TOOLCHAIN STREQUAL "gcc")
+  set(TOOLCHAIN_COMMON_FLAGS
+    -mthumb
+    -mcpu=cortex-m33+nodsp
+    -mfloat-abi=hard
+    -mfpu=fpv5-sp-d16
+    )
+  set(FREERTOS_PORT GCC_ARM_CM33_NTZ_NONSECURE CACHE INTERNAL "")
+
+elseif (TOOLCHAIN STREQUAL "clang")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --target=arm-none-eabi
+    -mcpu=cortex-m33+nodsp
+    -mfpu=fpv5-sp-d16
+    )
+  set(FREERTOS_PORT GCC_ARM_CM33_NTZ_NONSECURE CACHE INTERNAL "")
+
+elseif (TOOLCHAIN STREQUAL "iar")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --cpu cortex-m33+nodsp
+    --fpu VFPv5-SP
+    )
+  set(FREERTOS_PORT IAR_ARM_CM33_NTZ_NONSECURE CACHE INTERNAL "")
+
+endif ()
--- a/examples/build_system/make/make.mk
+++ b/examples/build_system/make/make.mk
@ -109,6 +109,10 @@ INC += \
 BOARD_UPPER = $(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,$(subst z,Z,$(subst -,_,$(BOARD))))))))))))))))))))))))))))
 CFLAGS += -DBOARD_$(BOARD_UPPER)

+ifdef CFLAGS_CLI
+	CFLAGS += $(CFLAGS_CLI)
+endif
+
 # use max3421 as host controller
 ifeq (${MAX3421_HOST},1)
  SRC_C += src/portable/analog/max3421/hcd_max3421.c
--- a/examples/build_system/make/rules.mk
+++ b/examples/build_system/make/rules.mk
@ -145,6 +145,12 @@ OPENOCD_WCH_OPTION ?=
 flash-openocd-wch: $(BUILD)/$(PROJECT).elf
 	$(OPENOCD_WCH) $(OPENOCD_WCH_OPTION) -c init -c halt -c "flash write_image $<" -c reset -c exit

+# --------------- wlink-rs -----------------
+# flash with https://github.com/ch32-rs/wlink
+WLINK_RS ?= wlink
+flash-wlink-rs: $(BUILD)/$(PROJECT).elf
+	$(WLINK_RS) flash $<
+
 # --------------- dfu-util -----------------
 DFU_UTIL_OPTION ?= -a 0
 flash-dfu-util: $(BUILD)/$(PROJECT).bin
--- a/examples/device/audio_4_channel_mic_freertos/skip.txt
+++ b/examples/device/audio_4_channel_mic_freertos/skip.txt
@ -1,3 +1,4 @@
+mcu:CH32V103
 mcu:CH32V20X
 mcu:CH32V307
 mcu:CXD56
--- a/examples/device/audio_4_channel_mic_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/examples/device/audio_4_channel_mic_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
@ -67,6 +67,7 @@
 #define configENABLE_FPU								        1
 #define configENABLE_TRUSTZONE					        0
 #define configMINIMAL_SECURE_STACK_SIZE					( 1024 )
+#define configRUN_FREERTOS_SECURE_ONLY          1

 #define configUSE_PREEMPTION                    1
 #define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
--- a/examples/device/audio_test_freertos/skip.txt
+++ b/examples/device/audio_test_freertos/skip.txt
@ -1,3 +1,4 @@
+mcu:CH32V103
 mcu:CH32V20X
 mcu:CH32V307
 mcu:CXD56
--- a/examples/device/audio_test_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/examples/device/audio_test_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
@ -67,6 +67,7 @@
 #define configENABLE_FPU								        1
 #define configENABLE_TRUSTZONE					        0
 #define configMINIMAL_SECURE_STACK_SIZE					( 1024 )
+#define configRUN_FREERTOS_SECURE_ONLY          1

 #define configUSE_PREEMPTION                    1
 #define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
--- a/examples/device/cdc_dual_ports/src/main.c
+++ b/examples/device/cdc_dual_ports/src/main.c
@ -119,6 +119,26 @@ static void cdc_task(void) {
  }
 }

+// Invoked when cdc when line state changed e.g connected/disconnected
+// Use to reset to DFU when disconnect with 1200 bps
+void tud_cdc_line_state_cb(uint8_t instance, bool dtr, bool rts) {
+  (void)rts;
+
+  // DTR = false is counted as disconnected
+  if (!dtr) {
+    // touch1200 only with first CDC instance (Serial)
+    if (instance == 0) {
+      cdc_line_coding_t coding;
+      tud_cdc_get_line_coding(&coding);
+      if (coding.bit_rate == 1200) {
+        if (board_reset_to_bootloader) {
+          board_reset_to_bootloader();
+        }
+      }
+    }
+  }
+}
+
 //--------------------------------------------------------------------+
 // BLINKING TASK
 //--------------------------------------------------------------------+
--- a/examples/device/cdc_msc/skip.txt
+++ b/examples/device/cdc_msc/skip.txt
@ -1,2 +1,3 @@
 mcu:SAMD11
 family:espressif
+board:ch32v203g_r0_1v0
--- a/examples/device/cdc_msc_freertos/skip.txt
+++ b/examples/device/cdc_msc_freertos/skip.txt
@ -1,3 +1,4 @@
+mcu:CH32V103
 mcu:CH32V20X
 mcu:CH32V307
 mcu:CXD56
--- a/examples/device/cdc_msc_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/examples/device/cdc_msc_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
@ -67,6 +67,7 @@
 #define configENABLE_FPU								        1
 #define configENABLE_TRUSTZONE					        0
 #define configMINIMAL_SECURE_STACK_SIZE					( 1024 )
+#define configRUN_FREERTOS_SECURE_ONLY          1

 #define configUSE_PREEMPTION                    1
 #define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
--- a/examples/device/cdc_msc_freertos/src/msc_disk.c
+++ b/examples/device/cdc_msc_freertos/src/msc_disk.c
@ -28,6 +28,9 @@

 #if CFG_TUD_MSC

+// whether host does safe-eject
+static bool ejected = false;
+
 // Some MCU doesn't have enough 8KB SRAM to store the whole disk
 // We will use Flash as read-only disk with board that has
 // CFG_EXAMPLE_MSC_READONLY defined
@ -137,7 +140,14 @@ bool tud_msc_test_unit_ready_cb(uint8_t lun)
 {
  (void) lun;

-  return true; // RAM disk is always ready
+  // RAM disk is ready until ejected
+  if (ejected) {
+    // Additional Sense 3A-00 is NOT_FOUND
+    tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x3a, 0x00);
+    return false;
+  }
+
+  return true;
 }

 // Invoked when received SCSI_CMD_READ_CAPACITY_10 and SCSI_CMD_READ_FORMAT_CAPACITY to determine the disk size
@ -166,6 +176,7 @@ bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, boo
    }else
    {
      // unload disk storage
+      ejected = true;
    }
  }

@ -187,6 +198,17 @@ int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buff
  return (int32_t) bufsize;
 }

+bool tud_msc_is_writable_cb (uint8_t lun)
+{
+  (void) lun;
+
+#ifdef CFG_EXAMPLE_MSC_READONLY
+  return false;
+#else
+  return true;
+#endif
+}
+
 // Callback invoked when received WRITE10 command.
 // Process data in buffer to disk's storage and return number of written bytes
 int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t* buffer, uint32_t bufsize)
--- a/examples/device/dynamic_configuration/skip.txt
+++ b/examples/device/dynamic_configuration/skip.txt
@ -1,2 +1,3 @@
 mcu:SAMD11
 family:espressif
+board:ch32v203g_r0_1v0
--- a/examples/device/hid_composite_freertos/skip.txt
+++ b/examples/device/hid_composite_freertos/skip.txt
@ -1,3 +1,4 @@
+mcu:CH32V103
 mcu:CH32V20X
 mcu:CH32V307
 mcu:CXD56
--- a/examples/device/hid_composite_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/examples/device/hid_composite_freertos/src/FreeRTOSConfig/FreeRTOSConfig.h
@ -67,6 +67,7 @@
 #define configENABLE_FPU								        1
 #define configENABLE_TRUSTZONE					        0
 #define configMINIMAL_SECURE_STACK_SIZE					( 1024 )
+#define configRUN_FREERTOS_SECURE_ONLY          1

 #define configUSE_PREEMPTION                    1
 #define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
--- a/examples/device/net_lwip_webserver/CMakeLists.txt
+++ b/examples/device/net_lwip_webserver/CMakeLists.txt
@ -5,7 +5,14 @@ include(${CMAKE_CURRENT_LIST_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})

+# Prefer the tinyusb lwip
 set(LWIP ${TOP}/lib/lwip)
+
+# If we can't find one from tinyusb then check cmake var before giving up
+if (NOT EXISTS ${LWIP}/src)
+  set(LWIP ${TINYUSB_LWIP_PATH})
+endif()
+
 if (NOT EXISTS ${LWIP}/src)
  family_example_missing_dependency(${PROJECT} "lib/lwip")
  return()
--- a/examples/device/net_lwip_webserver/skip.txt
+++ b/examples/device/net_lwip_webserver/skip.txt
@ -1,3 +1,4 @@
+mcu:CH32V103
 mcu:CH32V20X
 mcu:LPC11UXX
 mcu:LPC13XX
--- a/examples/device/video_capture/skip.txt
+++ b/examples/device/video_capture/skip.txt
@ -1,3 +1,4 @@
+mcu:CH32V103
 mcu:CH32V20X
 mcu:MSP430x5xx
 mcu:NUC121
--- a/examples/device/video_capture_2ch/skip.txt
+++ b/examples/device/video_capture_2ch/skip.txt
@ -2,6 +2,7 @@ mcu:MSP430x5xx
 mcu:NUC121
 mcu:SAMD11
 mcu:GD32VF103
+mcu:CH32V103
 mcu:CH32V20X
 mcu:CH32V307
 mcu:STM32L0
--- a/examples/dual/CMakeLists.txt
+++ b/examples/dual/CMakeLists.txt
@ -10,4 +10,5 @@ if (FAMILY STREQUAL "rp2040" AND NOT TARGET tinyusb_pico_pio_usb)
 else ()
  # family_add_subdirectory will filter what to actually add based on selected FAMILY
  family_add_subdirectory(host_hid_to_device_cdc)
+  family_add_subdirectory(host_info_to_device_cdc)
 endif ()
--- a/examples/dual/host_hid_to_device_cdc/src/main.c
+++ b/examples/dual/host_hid_to_device_cdc/src/main.c
@ -55,14 +55,14 @@ const uint8_t colemak[128] = {
 };
 #endif

-static uint8_t const keycode2ascii[128][2] =  { HID_KEYCODE_TO_ASCII };
+static uint8_t const keycode2ascii[128][2] = {HID_KEYCODE_TO_ASCII};

 /* Blink pattern
 * - 250 ms  : device not mounted
 * - 1000 ms : device mounted
 * - 2500 ms : device is suspended
 */
-enum  {
+enum {
  BLINK_NOT_MOUNTED = 250,
  BLINK_MOUNTED = 1000,
  BLINK_SUSPENDED = 2500,
@ -73,8 +73,7 @@ static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
 void led_blinking_task(void);

 /*------------- MAIN -------------*/
-int main(void)
-{
+int main(void) {
  board_init();

  printf("TinyUSB Host HID <-> Device CDC Example\r\n");
@ -87,8 +86,7 @@ int main(void)
    board_init_after_tusb();
  }

-  while (1)
-  {
+  while (1) {
    tud_task(); // tinyusb device task
    tuh_task(); // tinyusb host task
    led_blinking_task();
@ -102,35 +100,30 @@ int main(void)
 //--------------------------------------------------------------------+

 // Invoked when device is mounted
-void tud_mount_cb(void)
-{
+void tud_mount_cb(void) {
  blink_interval_ms = BLINK_MOUNTED;
 }

 // Invoked when device is unmounted
-void tud_umount_cb(void)
-{
+void tud_umount_cb(void) {
  blink_interval_ms = BLINK_NOT_MOUNTED;
 }

 // Invoked when usb bus is suspended
 // remote_wakeup_en : if host allow us  to perform remote wakeup
 // Within 7ms, device must draw an average of current less than 2.5 mA from bus
-void tud_suspend_cb(bool remote_wakeup_en)
-{
+void tud_suspend_cb(bool remote_wakeup_en) {
  (void) remote_wakeup_en;
  blink_interval_ms = BLINK_SUSPENDED;
 }

 // Invoked when usb bus is resumed
-void tud_resume_cb(void)
-{
+void tud_resume_cb(void) {
  blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
 }

 // 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;

  char buf[64];
@ -149,38 +142,36 @@ void tud_cdc_rx_cb(uint8_t itf)
 // can be used to parse common/simple enough descriptor.
 // Note: if report descriptor length > CFG_TUH_ENUMERATION_BUFSIZE, it will be skipped
 // therefore report_desc = NULL, desc_len = 0
-void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_report, uint16_t desc_len)
-{
-  (void)desc_report;
-  (void)desc_len;
+void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_report, uint16_t desc_len) {
+  (void) desc_report;
+  (void) desc_len;

  // Interface protocol (hid_interface_protocol_enum_t)
-  const char* protocol_str[] = { "None", "Keyboard", "Mouse" };
+  const char* protocol_str[] = {"None", "Keyboard", "Mouse"};
  uint8_t const itf_protocol = tuh_hid_interface_protocol(dev_addr, instance);

  uint16_t vid, pid;
  tuh_vid_pid_get(dev_addr, &vid, &pid);

  char tempbuf[256];
-  int count = sprintf(tempbuf, "[%04x:%04x][%u] HID Interface%u, Protocol = %s\r\n", vid, pid, dev_addr, instance, protocol_str[itf_protocol]);
+  int count = sprintf(
+      tempbuf, "[%04x:%04x][%u] HID Interface%u, Protocol = %s\r\n", vid, pid, dev_addr, instance,
+      protocol_str[itf_protocol]);

  tud_cdc_write(tempbuf, (uint32_t) count);
  tud_cdc_write_flush();

  // Receive report from boot keyboard & mouse only
  // tuh_hid_report_received_cb() will be invoked when report is available
-  if (itf_protocol == HID_ITF_PROTOCOL_KEYBOARD || itf_protocol == HID_ITF_PROTOCOL_MOUSE)
-  {
-    if ( !tuh_hid_receive_report(dev_addr, instance) )
-    {
+  if (itf_protocol == HID_ITF_PROTOCOL_KEYBOARD || itf_protocol == HID_ITF_PROTOCOL_MOUSE) {
+    if (!tuh_hid_receive_report(dev_addr, instance)) {
      tud_cdc_write_str("Error: cannot request report\r\n");
    }
  }
 }

 // Invoked when device with hid interface is un-mounted
-void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
-{
+void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance) {
  char tempbuf[256];
  int count = sprintf(tempbuf, "[%u] HID Interface%u is unmounted\r\n", dev_addr, instance);
  tud_cdc_write(tempbuf, (uint32_t) count);
@ -188,11 +179,9 @@ void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
 }

 // look up new key in previous keys
-static inline bool find_key_in_report(hid_keyboard_report_t const *report, uint8_t keycode)
-{
-  for(uint8_t i=0; i<6; i++)
-  {
-    if (report->keycode[i] == keycode)  return true;
+static inline bool find_key_in_report(hid_keyboard_report_t const* report, uint8_t keycode) {
+  for (uint8_t i = 0; i < 6; i++) {
+    if (report->keycode[i] == keycode) return true;
  }

  return false;
@ -200,22 +189,17 @@ static inline bool find_key_in_report(hid_keyboard_report_t const *report, uint8


 // convert hid keycode to ascii and print via usb device CDC (ignore non-printable)
-static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const *report)
-{
+static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const* report) {
  (void) dev_addr;
-  static hid_keyboard_report_t prev_report = { 0, 0, {0} }; // previous report to check key released
+  static hid_keyboard_report_t prev_report = {0, 0, {0}}; // previous report to check key released
  bool flush = false;

-  for(uint8_t i=0; i<6; i++)
-  {
+  for (uint8_t i = 0; i < 6; i++) {
    uint8_t keycode = report->keycode[i];
-    if ( keycode )
-    {
-      if ( find_key_in_report(&prev_report, keycode) )
-      {
+    if (keycode) {
+      if (find_key_in_report(&prev_report, keycode)) {
        // exist in previous report means the current key is holding
-      }else
-      {
+      } else {
        // not existed in previous report means the current key is pressed

        // remap the key code for Colemak layout
@ -227,8 +211,7 @@ static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const *re
        bool const is_shift = report->modifier & (KEYBOARD_MODIFIER_LEFTSHIFT | KEYBOARD_MODIFIER_RIGHTSHIFT);
        uint8_t ch = keycode2ascii[keycode][is_shift ? 1 : 0];

-        if (ch)
-        {
+        if (ch) {
          if (ch == '\n') tud_cdc_write("\r", 1);
          tud_cdc_write(&ch, 1);
          flush = true;
@ -244,13 +227,12 @@ static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const *re
 }

 // send mouse report to usb device CDC
-static void process_mouse_report(uint8_t dev_addr, hid_mouse_report_t const * report)
-{
+static void process_mouse_report(uint8_t dev_addr, hid_mouse_report_t const* report) {
  //------------- button state  -------------//
  //uint8_t button_changed_mask = report->buttons ^ prev_report.buttons;
-  char l = report->buttons & MOUSE_BUTTON_LEFT   ? 'L' : '-';
+  char l = report->buttons & MOUSE_BUTTON_LEFT ? 'L' : '-';
  char m = report->buttons & MOUSE_BUTTON_MIDDLE ? 'M' : '-';
-  char r = report->buttons & MOUSE_BUTTON_RIGHT  ? 'R' : '-';
+  char r = report->buttons & MOUSE_BUTTON_RIGHT ? 'R' : '-';

  char tempbuf[32];
  int count = sprintf(tempbuf, "[%u] %c%c%c %d %d %d\r\n", dev_addr, l, m, r, report->x, report->y, report->wheel);
@ -260,27 +242,25 @@ static void process_mouse_report(uint8_t dev_addr, hid_mouse_report_t const * re
 }

 // Invoked when received report from device via interrupt endpoint
-void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len)
-{
+void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len) {
  (void) len;
  uint8_t const itf_protocol = tuh_hid_interface_protocol(dev_addr, instance);

-  switch(itf_protocol)
-  {
+  switch (itf_protocol) {
    case HID_ITF_PROTOCOL_KEYBOARD:
-      process_kbd_report(dev_addr, (hid_keyboard_report_t const*) report );
-    break;
+      process_kbd_report(dev_addr, (hid_keyboard_report_t const*) report);
+      break;

    case HID_ITF_PROTOCOL_MOUSE:
-      process_mouse_report(dev_addr, (hid_mouse_report_t const*) report );
-    break;
+      process_mouse_report(dev_addr, (hid_mouse_report_t const*) report);
+      break;

-    default: break;
+    default:
+      break;
  }

  // continue to request to receive report
-  if ( !tuh_hid_receive_report(dev_addr, instance) )
-  {
+  if (!tuh_hid_receive_report(dev_addr, instance)) {
    tud_cdc_write_str("Error: cannot request report\r\n");
  }
 }
@ -288,13 +268,12 @@ void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t cons
 //--------------------------------------------------------------------+
 // Blinking Task
 //--------------------------------------------------------------------+
-void led_blinking_task(void)
-{
+void led_blinking_task(void) {
  static uint32_t start_ms = 0;
  static bool led_state = false;

  // Blink every interval ms
-  if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
+  if (board_millis() - start_ms < blink_interval_ms) return; // not enough time
  start_ms += blink_interval_ms;

  board_led_write(led_state);
--- a/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
+++ b/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
@ -23,8 +23,8 @@
 *
 */

-#ifndef _TUSB_CONFIG_H_
-#define _TUSB_CONFIG_H_
+#ifndef TUSB_CONFIG_H_
+#define TUSB_CONFIG_H_

 #ifdef __cplusplus
 extern "C" {
@ -144,4 +144,4 @@
 }
 #endif

-#endif /* _TUSB_CONFIG_H_ */
+#endif
--- a/examples/dual/host_hid_to_device_cdc/src/usb_descriptors.c
+++ b/examples/dual/host_hid_to_device_cdc/src/usb_descriptors.c
@ -42,44 +42,41 @@
 //--------------------------------------------------------------------+
 // 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)
-{
-  return (uint8_t const *) &desc_device;
+uint8_t const* tud_descriptor_device_cb(void) {
+  return (uint8_t const*) &desc_device;
 }

 //--------------------------------------------------------------------+
 // Configuration Descriptor
 //--------------------------------------------------------------------+

-enum
-{
+enum {
  ITF_NUM_CDC = 0,
  ITF_NUM_CDC_DATA,
  ITF_NUM_TOTAL
@ -92,7 +89,7 @@ enum
  #define EPNUM_CDC_OUT     0x02
  #define EPNUM_CDC_IN      0x82

-#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
@ -109,7 +106,7 @@ enum
  #define EPNUM_CDC_IN      0x81

 #elif CFG_TUSB_MCU == OPT_MCU_FT90X || CFG_TUSB_MCU == OPT_MCU_FT93X
-  // FT9XX doesn't support a same endpoint number with different direction IN and OUT
+// FT9XX doesn'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
  #define EPNUM_CDC_OUT     0x02
@ -125,21 +122,19 @@ enum
 #define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_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),
 };

 #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[] =
-{
+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),

@ -151,8 +146,7 @@ uint8_t const desc_hs_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 =
-{
+tusb_desc_device_qualifier_t const desc_device_qualifier = {
  .bLength            = sizeof(tusb_desc_device_qualifier_t),
  .bDescriptorType    = TUSB_DESC_DEVICE_QUALIFIER,
  .bcdUSB             = USB_BCD,
@ -170,16 +164,14 @@ tusb_desc_device_qualifier_t const desc_device_qualifier =
 // 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)
-{
+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
@ -199,8 +191,7 @@ 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
@ -224,24 +215,23 @@ enum {
 };

 // 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
+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
 };

 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;

-  switch ( index ) {
+  switch (index) {
    case STRID_LANGID:
      memcpy(&_desc_str[1], string_desc_arr[0], 2);
      chr_count = 1;
@ -255,17 +245,17 @@ uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
      // 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;
+      if (!(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0]))) return NULL;

-      const char *str = string_desc_arr[index];
+      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;
+      if (chr_count > max_count) chr_count = max_count;

      // Convert ASCII string into UTF-16
-      for ( size_t i = 0; i < chr_count; i++ ) {
+      for (size_t i = 0; i < chr_count; i++) {
        _desc_str[1 + i] = str[i];
      }
      break;
--- a/examples/dual/host_info_to_device_cdc/CMakeLists.txt
+++ b/examples/dual/host_info_to_device_cdc/CMakeLists.txt
@ -0,0 +1,40 @@
+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} ${CMAKE_CURRENT_LIST_DIR})
+
+add_executable(${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
+  ${CMAKE_CURRENT_SOURCE_DIR}/src
+  )
+
+# Configure compilation flags and libraries for the example without RTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_dual_usb_example(${PROJECT} noos)
+
+# due to warnings from Pico-PIO-USB
+target_compile_options(${PROJECT} PUBLIC
+  -Wno-error=shadow
+  -Wno-error=cast-align
+  -Wno-error=cast-qual
+  -Wno-error=redundant-decls
+  -Wno-error=sign-conversion
+  -Wno-error=conversion
+  -Wno-error=sign-compare
+  -Wno-error=unused-function
+  )
--- a/examples/dual/host_info_to_device_cdc/Makefile
+++ b/examples/dual/host_info_to_device_cdc/Makefile
@ -0,0 +1,17 @@
+include ../../build_system/make/make.mk
+
+INC += \
+	src \
+	$(TOP)/hw \
+
+# Example source
+EXAMPLE_SOURCE += $(wildcard src/*.c)
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+
+CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference
+
+SRC_C += \
+	src/host/hub.c \
+	src/host/usbh.c
+
+include ../../build_system/make/rules.mk
--- a/examples/dual/host_info_to_device_cdc/only.txt
+++ b/examples/dual/host_info_to_device_cdc/only.txt
@ -0,0 +1,6 @@
+board:mimxrt1060_evk
+board:mimxrt1064_evk
+board:mcb1800
+mcu:RP2040
+mcu:ra6m5
+mcu:MAX3421
--- a/examples/dual/host_info_to_device_cdc/src/main.c
+++ b/examples/dual/host_info_to_device_cdc/src/main.c
@ -0,0 +1,285 @@
+/*
+ * 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.
+ *
+ */
+
+/* Host example will get device descriptors of attached devices and print it out via device cdc as follows:
+ *    Device 1: ID 046d:c52f
+      Device Descriptor:
+        bLength             18
+        bDescriptorType     1
+        bcdUSB              0200
+        bDeviceClass        0
+        bDeviceSubClass     0
+        bDeviceProtocol     0
+        bMaxPacketSize0     8
+        idVendor            0x046d
+        idProduct           0xc52f
+        bcdDevice           2200
+        iManufacturer       1     Logitech
+        iProduct            2     USB Receiver
+        iSerialNumber       0
+        bNumConfigurations  1
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board_api.h"
+#include "tusb.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+// Language ID: English
+#define LANGUAGE_ID 0x0409
+
+/* 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;
+
+static bool is_print[CFG_TUH_DEVICE_MAX+1] = { 0 };
+
+static void print_utf16(uint16_t *temp_buf, size_t buf_len);
+void led_blinking_task(void);
+void cdc_task(void);
+
+/*------------- MAIN -------------*/
+int main(void) {
+  board_init();
+
+  printf("TinyUSB Host Information -> Device CDC Example\r\n");
+
+  // init device and host stack on configured roothub port
+  tud_init(BOARD_TUD_RHPORT);
+  tuh_init(BOARD_TUH_RHPORT);
+
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
+  while (1) {
+    tud_task(); // tinyusb device task
+    tuh_task(); // tinyusb host task
+    cdc_task();
+    led_blinking_task();
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------+
+// Device CDC
+//--------------------------------------------------------------------+
+
+// 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;
+}
+
+#if 1
+#define cdc_printf(...)                          \
+  do {                                           \
+    char _tempbuf[256];                          \
+    int count = sprintf(_tempbuf, __VA_ARGS__);  \
+    tud_cdc_write(_tempbuf, (uint32_t) count);   \
+    tud_cdc_write_flush();                       \
+    tud_task();                                  \
+  } while(0)
+#endif
+
+//#define cdc_printf printf
+
+void print_device_info(uint8_t daddr) {
+  tusb_desc_device_t desc_device;
+  uint8_t xfer_result = tuh_descriptor_get_device_sync(daddr, &desc_device, 18);
+  if (XFER_RESULT_SUCCESS != xfer_result) {
+    tud_cdc_write_str("Failed to get device descriptor\r\n");
+    return;
+  }
+
+  cdc_printf("Device %u: ID %04x:%04x\r\n", daddr, desc_device.idVendor, desc_device.idProduct);
+  cdc_printf("Device Descriptor:\r\n");
+  cdc_printf("  bLength             %u\r\n"     , desc_device.bLength);
+  cdc_printf("  bDescriptorType     %u\r\n"     , desc_device.bDescriptorType);
+  cdc_printf("  bcdUSB              %04x\r\n"   , desc_device.bcdUSB);
+  cdc_printf("  bDeviceClass        %u\r\n"     , desc_device.bDeviceClass);
+  cdc_printf("  bDeviceSubClass     %u\r\n"     , desc_device.bDeviceSubClass);
+  cdc_printf("  bDeviceProtocol     %u\r\n"     , desc_device.bDeviceProtocol);
+  cdc_printf("  bMaxPacketSize0     %u\r\n"     , desc_device.bMaxPacketSize0);
+  cdc_printf("  idVendor            0x%04x\r\n" , desc_device.idVendor);
+  cdc_printf("  idProduct           0x%04x\r\n" , desc_device.idProduct);
+  cdc_printf("  bcdDevice           %04x\r\n"   , desc_device.bcdDevice);
+
+  // Get String descriptor using Sync API
+  uint16_t buf[128];
+
+  cdc_printf("  iManufacturer       %u     "     , desc_device.iManufacturer);
+  xfer_result = tuh_descriptor_get_manufacturer_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result ) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  tud_cdc_write_str("\r\n");
+
+  cdc_printf("  iProduct            %u     "     , desc_device.iProduct);
+  xfer_result = tuh_descriptor_get_product_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  tud_cdc_write_str("\r\n");
+
+  cdc_printf("  iSerialNumber       %u     "     , desc_device.iSerialNumber);
+  xfer_result = tuh_descriptor_get_serial_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  tud_cdc_write_str("\r\n");
+
+  cdc_printf("  bNumConfigurations  %u\r\n"     , desc_device.bNumConfigurations);
+}
+
+void cdc_task(void) {
+  if (tud_cdc_connected()) {
+    for (uint8_t daddr = 1; daddr <= CFG_TUH_DEVICE_MAX; daddr++) {
+      if (tuh_mounted(daddr)) {
+        if (is_print[daddr]) {
+          is_print[daddr] = false;
+          print_device_info(daddr);
+          tud_cdc_write_flush();
+        }
+      }
+    }
+  }
+}
+
+//--------------------------------------------------------------------+
+// Host Get device information
+//--------------------------------------------------------------------+
+void tuh_mount_cb(uint8_t daddr) {
+  printf("mounted device %u\r\n", daddr);
+  is_print[daddr] = true;
+}
+
+void tuh_umount_cb(uint8_t daddr) {
+  printf("unmounted device %u\r\n", daddr);
+  is_print[daddr] = false;
+}
+
+//--------------------------------------------------------------------+
+// 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
+}
+
+//--------------------------------------------------------------------+
+// String Descriptor Helper
+//--------------------------------------------------------------------+
+
+static void _convert_utf16le_to_utf8(const uint16_t *utf16, size_t utf16_len, uint8_t *utf8, size_t utf8_len) {
+  // TODO: Check for runover.
+  (void)utf8_len;
+  // Get the UTF-16 length out of the data itself.
+
+  for (size_t i = 0; i < utf16_len; i++) {
+    uint16_t chr = utf16[i];
+    if (chr < 0x80) {
+      *utf8++ = chr & 0xffu;
+    } else if (chr < 0x800) {
+      *utf8++ = (uint8_t)(0xC0 | (chr >> 6 & 0x1F));
+      *utf8++ = (uint8_t)(0x80 | (chr >> 0 & 0x3F));
+    } else {
+      // TODO: Verify surrogate.
+      *utf8++ = (uint8_t)(0xE0 | (chr >> 12 & 0x0F));
+      *utf8++ = (uint8_t)(0x80 | (chr >> 6 & 0x3F));
+      *utf8++ = (uint8_t)(0x80 | (chr >> 0 & 0x3F));
+    }
+    // TODO: Handle UTF-16 code points that take two entries.
+  }
+}
+
+// Count how many bytes a utf-16-le encoded string will take in utf-8.
+static int _count_utf8_bytes(const uint16_t *buf, size_t len) {
+  size_t total_bytes = 0;
+  for (size_t i = 0; i < len; i++) {
+    uint16_t chr = buf[i];
+    if (chr < 0x80) {
+      total_bytes += 1;
+    } else if (chr < 0x800) {
+      total_bytes += 2;
+    } else {
+      total_bytes += 3;
+    }
+    // TODO: Handle UTF-16 code points that take two entries.
+  }
+  return (int) total_bytes;
+}
+
+static void print_utf16(uint16_t *temp_buf, size_t buf_len) {
+  if ((temp_buf[0] & 0xff) == 0) return;  // empty
+  size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t);
+  size_t utf8_len = (size_t) _count_utf8_bytes(temp_buf + 1, utf16_len);
+  _convert_utf16le_to_utf8(temp_buf + 1, utf16_len, (uint8_t *) temp_buf, sizeof(uint16_t) * buf_len);
+  ((uint8_t*) temp_buf)[utf8_len] = '\0';
+
+  tud_cdc_write(temp_buf, utf8_len);
+  tud_cdc_write_flush();
+  tud_task();
+}
--- a/examples/dual/host_info_to_device_cdc/src/tusb_config.h
+++ b/examples/dual/host_info_to_device_cdc/src/tusb_config.h
@ -0,0 +1,143 @@
+/*
+ * 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
+
+//--------------------------------------------------------------------+
+// 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
+
+// RHPort number used for host can be defined by board.mk, default to port 1
+#ifndef BOARD_TUH_RHPORT
+#define BOARD_TUH_RHPORT      1
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUH_MAX_SPEED
+#define BOARD_TUH_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, Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUD_ENABLED       1
+#define CFG_TUD_MAX_SPEED     BOARD_TUD_MAX_SPEED
+
+// Enable Host stack, Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_ENABLED       1
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
+
+#if CFG_TUSB_MCU == OPT_MCU_RP2040
+// Use pico-pio-usb as host controller for raspberry rp2040
+#define CFG_TUH_RPI_PIO_USB   1
+#endif
+
+/* 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_TUD_MEM_SECTION
+#define CFG_TUD_MEM_SECTION
+#endif
+
+#ifndef CFG_TUD_MEM_ALIGN
+#define CFG_TUD_MEM_ALIGN        __attribute__ ((aligned(4)))
+#endif
+
+//--------------------------------------------------------------------
+// DEVICE CONFIGURATION
+//--------------------------------------------------------------------
+
+#ifndef CFG_TUD_ENDPOINT0_SIZE
+#define CFG_TUD_ENDPOINT0_SIZE    64
+#endif
+
+//------------- CLASS -------------//
+#define CFG_TUD_CDC              1
+
+// CDC FIFO size of TX and RX
+#define CFG_TUD_CDC_RX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+
+// CDC Endpoint transfer buffer size, more is faster
+#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+
+//--------------------------------------------------------------------
+// HOST CONFIGURATION
+//--------------------------------------------------------------------
+
+// Size of buffer to hold descriptors and other data used for enumeration
+#define CFG_TUH_ENUMERATION_BUFSIZE 256
+
+#ifndef CFG_TUH_MEM_SECTION
+#define CFG_TUH_MEM_SECTION
+#endif
+
+#ifndef CFG_TUH_MEM_ALIGN
+#define CFG_TUH_MEM_ALIGN           __attribute__ ((aligned(4)))
+#endif
+
+#define CFG_TUH_HUB                 1
+// max device support (excluding hub device)
+#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif
--- a/examples/dual/host_info_to_device_cdc/src/usb_descriptors.c
+++ b/examples/dual/host_info_to_device_cdc/src/usb_descriptors.c
@ -0,0 +1,268 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#include "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]         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(VENDOR, 4) )
+
+#define USB_VID   0xCafe
+#define USB_BCD   0x0200
+
+//--------------------------------------------------------------------+
+// Device Descriptors
+//--------------------------------------------------------------------+
+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,
+
+    .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
+
+    .idVendor           = USB_VID,
+    .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_CDC = 0,
+  ITF_NUM_CDC_DATA,
+  ITF_NUM_TOTAL
+};
+
+#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, 5 Bulk etc ...
+  #define EPNUM_CDC_NOTIF   0x81
+  #define EPNUM_CDC_OUT     0x02
+  #define EPNUM_CDC_IN      0x82
+
+#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
+  #define EPNUM_CDC_OUT     0x02
+  #define EPNUM_CDC_IN      0x83
+
+#elif CFG_TUSB_MCU == OPT_MCU_CXD56
+  // CXD56 doesn't support a same endpoint number with different direction IN and OUT
+  //    e.g EP1 OUT & EP1 IN cannot exist together
+  // CXD56 USB driver has fixed endpoint type (bulk/interrupt/iso) and direction (IN/OUT) by its number
+  // 0 control (IN/OUT), 1 Bulk (IN), 2 Bulk (OUT), 3 In (IN), 4 Bulk (IN), 5 Bulk (OUT), 6 In (IN)
+  #define EPNUM_CDC_NOTIF   0x83
+  #define EPNUM_CDC_OUT     0x02
+  #define EPNUM_CDC_IN      0x81
+
+#elif CFG_TUSB_MCU == OPT_MCU_FT90X || CFG_TUSB_MCU == OPT_MCU_FT93X
+// FT9XX doesn'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
+  #define EPNUM_CDC_OUT     0x02
+  #define EPNUM_CDC_IN      0x83
+
+#else
+  #define EPNUM_CDC_NOTIF   0x81
+  #define EPNUM_CDC_OUT     0x02
+  #define EPNUM_CDC_IN      0x82
+
+#endif
+
+#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_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),
+
+    // 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),
+};
+
+#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),
+
+  // 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),
+};
+
+// 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,
+
+  .bDeviceClass       = TUSB_CLASS_MISC,
+  .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
+  .bDeviceProtocol    = MISC_PROTOCOL_IAD,
+
+  .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
+  .bNumConfigurations = 0x01,
+  .bReserved          = 0x00
+};
+
+// Invoked when received GET DEVICE QUALIFIER DESCRIPTOR request
+// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete.
+// device_qualifier descriptor describes information about a high-speed capable device that would
+// change if the device were operating at the other speed. If not highspeed capable stall this request.
+uint8_t const* tud_descriptor_device_qualifier_cb(void) {
+  return (uint8_t const*) &desc_device_qualifier;
+}
+
+// Invoked when received GET OTHER SEED CONFIGURATION DESCRIPTOR request
+// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
+// Configuration descriptor in the other speed e.g if high speed then this is for full speed and vice versa
+uint8_t const* tud_descriptor_other_speed_configuration_cb(uint8_t index) {
+  (void) index; // for multiple configurations
+
+  // if link speed is high return fullspeed config, and vice versa
+  // Note: the descriptor type is OHER_SPEED_CONFIG instead of CONFIG
+  memcpy(desc_other_speed_config,
+         (tud_speed_get() == TUSB_SPEED_HIGH) ? desc_fs_configuration : desc_hs_configuration,
+         CONFIG_TOTAL_LEN);
+
+  desc_other_speed_config[1] = TUSB_DESC_OTHER_SPEED_CONFIG;
+
+  return desc_other_speed_config;
+}
+
+#endif // highspeed
+
+
+// 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
+
+#if TUD_OPT_HIGH_SPEED
+  // Although we are highspeed, host may be fullspeed.
+  return (tud_speed_get() == TUSB_SPEED_HIGH) ?  desc_hs_configuration : desc_fs_configuration;
+#else
+  return desc_fs_configuration;
+#endif
+}
+
+//--------------------------------------------------------------------+
+// 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)
+    "TinyUSB",                     // 1: Manufacturer
+    "TinyUSB Device",              // 2: Product
+    NULL,                          // 3: Serials will use unique ID if possible
+    "TinyUSB CDC",                 // 4: CDC 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;
+}
--- a/examples/host/CMakeLists.txt
+++ b/examples/host/CMakeLists.txt
@ -9,5 +9,6 @@ family_initialize_project(tinyusb_host_examples ${CMAKE_CURRENT_LIST_DIR})
 family_add_subdirectory(bare_api)
 family_add_subdirectory(cdc_msc_hid)
 family_add_subdirectory(cdc_msc_hid_freertos)
+family_add_subdirectory(device_info)
 family_add_subdirectory(hid_controller)
 family_add_subdirectory(msc_file_explorer)
--- a/examples/host/bare_api/src/main.c
+++ b/examples/host/bare_api/src/main.c
@ -23,10 +23,6 @@
 *
 */

-/* This example current worked and tested with following controller
- * - Sony DualShock 4 [CUH-ZCT2x] VID = 0x054c, PID = 0x09cc
- */
-

 #include <stdlib.h>
 #include <stdio.h>
--- a/examples/host/bare_api/src/tusb_config.h
+++ b/examples/host/bare_api/src/tusb_config.h
@ -23,8 +23,8 @@
 *
 */

-#ifndef _TUSB_CONFIG_H_
-#define _TUSB_CONFIG_H_
+#ifndef TUSB_CONFIG_H_
+#define TUSB_CONFIG_H_

 #ifdef __cplusplus
 extern "C" {
@ -118,4 +118,4 @@
 }
 #endif

-#endif /* _TUSB_CONFIG_H_ */
+#endif
--- a/examples/host/cdc_msc_hid/src/hid_app.c
+++ b/examples/host/cdc_msc_hid/src/hid_app.c
@ -235,6 +235,7 @@ static void process_mouse_report(hid_mouse_report_t const * report)
 static void process_generic_report(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len)
 {
  (void) dev_addr;
+  (void) len;

  uint8_t const rpt_count = hid_info[instance].report_count;
  tuh_hid_report_info_t* rpt_info_arr = hid_info[instance].report_info;
--- a/examples/host/device_info/CMakeLists.txt
+++ b/examples/host/device_info/CMakeLists.txt
@ -0,0 +1,32 @@
+cmake_minimum_required(VERSION 3.17)
+
+include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
+
+# gets PROJECT name for the example
+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
+        ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
+        )
+
+# Example include
+target_include_directories(${PROJECT} PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}/src
+        )
+
+# Configure compilation flags and libraries for the example without RTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_host_example(${PROJECT} noos)
--- a/examples/host/device_info/Makefile
+++ b/examples/host/device_info/Makefile
@ -0,0 +1,13 @@
+include ../../build_system/make/make.mk
+
+INC += \
+	src \
+	$(TOP)/hw \
+
+# Example source
+EXAMPLE_SOURCE += \
+	src/main.c
+
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+
+include ../../build_system/make/rules.mk
--- a/examples/host/device_info/only.txt
+++ b/examples/host/device_info/only.txt
@ -0,0 +1,14 @@
+mcu:KINETIS_KL
+mcu:LPC175X_6X
+mcu:LPC177X_8X
+mcu:LPC18XX
+mcu:LPC40XX
+mcu:LPC43XX
+mcu:MIMXRT1XXX
+mcu:MIMXRT10XX
+mcu:MIMXRT11XX
+mcu:RP2040
+mcu:MSP432E4
+mcu:RX65X
+mcu:RAXXX
+mcu:MAX3421
--- a/examples/host/device_info/src/main.c
+++ b/examples/host/device_info/src/main.c
@ -0,0 +1,210 @@
+/*
+ * 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.
+ *
+ */
+
+/* Host example will get device descriptors of attached devices and print it out via uart/rtt (logger) as follows:
+ *    Device 1: ID 046d:c52f
+      Device Descriptor:
+        bLength             18
+        bDescriptorType     1
+        bcdUSB              0200
+        bDeviceClass        0
+        bDeviceSubClass     0
+        bDeviceProtocol     0
+        bMaxPacketSize0     8
+        idVendor            0x046d
+        idProduct           0xc52f
+        bcdDevice           2200
+        iManufacturer       1     Logitech
+        iProduct            2     USB Receiver
+        iSerialNumber       0
+        bNumConfigurations  1
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board_api.h"
+#include "tusb.h"
+
+// English
+#define LANGUAGE_ID 0x0409
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+void led_blinking_task(void);
+static void print_utf16(uint16_t* temp_buf, size_t buf_len);
+
+/*------------- MAIN -------------*/
+int main(void) {
+  board_init();
+
+  printf("TinyUSB Device Info Example\r\n");
+
+  // init host stack on configured roothub port
+  tuh_init(BOARD_TUH_RHPORT);
+
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
+  while (1) {
+    // tinyusb host task
+    tuh_task();
+    led_blinking_task();
+  }
+
+  return 0;
+}
+
+/*------------- TinyUSB Callbacks -------------*/
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb(uint8_t daddr) {
+  // Get Device Descriptor
+  tusb_desc_device_t desc_device;
+  uint8_t xfer_result = tuh_descriptor_get_device_sync(daddr, &desc_device, 18);
+  if (XFER_RESULT_SUCCESS != xfer_result) {
+    printf("Failed to get device descriptor\r\n");
+    return;
+  }
+
+  uint16_t buf[256];
+
+  printf("Device %u: ID %04x:%04x\r\n", daddr, desc_device.idVendor, desc_device.idProduct);
+  printf("Device Descriptor:\r\n");
+  printf("  bLength             %u\r\n", desc_device.bLength);
+  printf("  bDescriptorType     %u\r\n", desc_device.bDescriptorType);
+  printf("  bcdUSB              %04x\r\n", desc_device.bcdUSB);
+  printf("  bDeviceClass        %u\r\n", desc_device.bDeviceClass);
+  printf("  bDeviceSubClass     %u\r\n", desc_device.bDeviceSubClass);
+  printf("  bDeviceProtocol     %u\r\n", desc_device.bDeviceProtocol);
+  printf("  bMaxPacketSize0     %u\r\n", desc_device.bMaxPacketSize0);
+  printf("  idVendor            0x%04x\r\n", desc_device.idVendor);
+  printf("  idProduct           0x%04x\r\n", desc_device.idProduct);
+  printf("  bcdDevice           %04x\r\n", desc_device.bcdDevice);
+
+  // Get String descriptor using Sync API
+
+  printf("  iManufacturer       %u     ", desc_device.iManufacturer);
+  xfer_result = tuh_descriptor_get_manufacturer_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  printf("\r\n");
+
+  printf("  iProduct            %u     ", desc_device.iProduct);
+  xfer_result = tuh_descriptor_get_product_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  printf("\r\n");
+
+  printf("  iSerialNumber       %u     ", desc_device.iSerialNumber);
+  xfer_result = tuh_descriptor_get_serial_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  printf("\r\n");
+
+  printf("  bNumConfigurations  %u\r\n", desc_device.bNumConfigurations);
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t daddr) {
+  printf("Device removed, address = %d\r\n", daddr);
+}
+
+//--------------------------------------------------------------------+
+// Blinking Task
+//--------------------------------------------------------------------+
+void led_blinking_task(void) {
+  const uint32_t interval_ms = 1000;
+  static uint32_t start_ms = 0;
+
+  static bool led_state = false;
+
+  // Blink every interval ms
+  if (board_millis() - start_ms < interval_ms) return; // not enough time
+  start_ms += interval_ms;
+
+  board_led_write(led_state);
+  led_state = 1 - led_state; // toggle
+}
+
+//--------------------------------------------------------------------+
+// String Descriptor Helper
+//--------------------------------------------------------------------+
+
+static void _convert_utf16le_to_utf8(const uint16_t* utf16, size_t utf16_len, uint8_t* utf8, size_t utf8_len) {
+  // TODO: Check for runover.
+  (void) utf8_len;
+  // Get the UTF-16 length out of the data itself.
+
+  for (size_t i = 0; i < utf16_len; i++) {
+    uint16_t chr = utf16[i];
+    if (chr < 0x80) {
+      *utf8++ = chr & 0xffu;
+    } else if (chr < 0x800) {
+      *utf8++ = (uint8_t) (0xC0 | (chr >> 6 & 0x1F));
+      *utf8++ = (uint8_t) (0x80 | (chr >> 0 & 0x3F));
+    } else {
+      // TODO: Verify surrogate.
+      *utf8++ = (uint8_t) (0xE0 | (chr >> 12 & 0x0F));
+      *utf8++ = (uint8_t) (0x80 | (chr >> 6 & 0x3F));
+      *utf8++ = (uint8_t) (0x80 | (chr >> 0 & 0x3F));
+    }
+    // TODO: Handle UTF-16 code points that take two entries.
+  }
+}
+
+// Count how many bytes a utf-16-le encoded string will take in utf-8.
+static int _count_utf8_bytes(const uint16_t* buf, size_t len) {
+  size_t total_bytes = 0;
+  for (size_t i = 0; i < len; i++) {
+    uint16_t chr = buf[i];
+    if (chr < 0x80) {
+      total_bytes += 1;
+    } else if (chr < 0x800) {
+      total_bytes += 2;
+    } else {
+      total_bytes += 3;
+    }
+    // TODO: Handle UTF-16 code points that take two entries.
+  }
+  return (int) total_bytes;
+}
+
+static void print_utf16(uint16_t* temp_buf, size_t buf_len) {
+  if ((temp_buf[0] & 0xff) == 0) return;  // empty
+  size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t);
+  size_t utf8_len = (size_t) _count_utf8_bytes(temp_buf + 1, utf16_len);
+  _convert_utf16le_to_utf8(temp_buf + 1, utf16_len, (uint8_t*) temp_buf, sizeof(uint16_t) * buf_len);
+  ((uint8_t*) temp_buf)[utf8_len] = '\0';
+
+  printf("%s", (char*) temp_buf);
+}
--- a/examples/host/device_info/src/tusb_config.h
+++ b/examples/host/device_info/src/tusb_config.h
@ -0,0 +1,115 @@
+/*
+ * 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
+
+//--------------------------------------------------------------------
+// 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
+
+/* 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_TUH_MEM_SECTION
+#define CFG_TUH_MEM_SECTION
+#endif
+
+#ifndef CFG_TUH_MEM_ALIGN
+#define CFG_TUH_MEM_ALIGN     __attribute__ ((aligned(4)))
+#endif
+
+//--------------------------------------------------------------------
+// Host Configuration
+//--------------------------------------------------------------------
+
+// Enable Host stack
+#define CFG_TUH_ENABLED       1
+
+#if CFG_TUSB_MCU == OPT_MCU_RP2040
+  // #define CFG_TUH_RPI_PIO_USB   1 // use pio-usb as host controller
+  // #define CFG_TUH_MAX3421       1 // use max3421 as host controller
+
+  // host roothub port is 1 if using either pio-usb or max3421
+  #if (defined(CFG_TUH_RPI_PIO_USB) && CFG_TUH_RPI_PIO_USB) || (defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421)
+    #define BOARD_TUH_RHPORT      1
+  #endif
+#endif
+
+// Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
+
+//------------------------- Board Specific --------------------------
+
+// RHPort number used for host can be defined by board.mk, default to port 0
+#ifndef BOARD_TUH_RHPORT
+#define BOARD_TUH_RHPORT      0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUH_MAX_SPEED
+#define BOARD_TUH_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
+#endif
+
+//--------------------------------------------------------------------
+// Driver Configuration
+//--------------------------------------------------------------------
+
+// Size of buffer to hold descriptors and other data used for enumeration
+#define CFG_TUH_ENUMERATION_BUFSIZE 256
+
+// only hub class is enabled
+#define CFG_TUH_HUB                 1
+
+// max device support (excluding hub device)
+// 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif
--- a/examples/host/hid_controller/src/hid_app.c
+++ b/examples/host/hid_controller/src/hid_app.c
@ -253,6 +253,7 @@ bool diff_report(sony_ds4_report_t const* rpt1, sony_ds4_report_t const* rpt2)

 void process_sony_ds4(uint8_t const* report, uint16_t len)
 {
+  (void)len;
  const char* dpad_str[] = { "N", "NE", "E", "SE", "S", "SW", "W", "NW", "none" };

  // previous report used to compare for changes
--- a/hw/bsp/board_api.h
+++ b/hw/bsp/board_api.h
@ -24,8 +24,8 @@
 * This file is part of the TinyUSB stack.
 */

-#ifndef _BOARD_API_H_
-#define _BOARD_API_H_
+#ifndef BOARD_API_H_
+#define BOARD_API_H_

 #ifdef __cplusplus
 extern "C" {
@ -72,6 +72,9 @@ void board_init(void);
 // Init board after tinyusb is initialized
 void board_init_after_tusb(void) TU_ATTR_WEAK;

+// Jump to bootloader
+void board_reset_to_bootloader(void) TU_ATTR_WEAK;
+
 // Turn LED on or off
 void board_led_write(bool state);

--- a/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.cmake
+++ b/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.cmake
@ -1,5 +1,3 @@
-set(MCU_VARIANT D6)
-
 set(LD_FLASH_SIZE 64K)
 set(LD_RAM_SIZE 20K)

--- a/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.h
+++ b/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.h
@ -6,9 +6,13 @@ extern "C" {
 #endif

 #define LED_PORT       GPIOA
-#define LED_PIN        GPIO_Pin_15
+#define LED_PIN        GPIO_Pin_10
 #define LED_STATE_ON   0

+#define BUTTON_PORT           GPIOA
+#define BUTTON_PIN            GPIO_Pin_1
+#define BUTTON_STATE_ACTIVE   0
+
 #ifdef __cplusplus
 }
 #endif
--- a/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.mk
+++ b/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.mk
@ -0,0 +1,5 @@
+CFLAGS += -DCFG_EXAMPLE_MSC_DUAL_READONLY
+
+LDFLAGS += \
+  -Wl,--defsym=__FLASH_SIZE=64K \
+  -Wl,--defsym=__RAM_SIZE=20K \
--- a/hw/bsp/ch32v10x/ch32v10x_conf.h
+++ b/hw/bsp/ch32v10x/ch32v10x_conf.h
@ -0,0 +1,37 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : ch32v10x_conf.h
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2020/04/30
+ * Description        : Library configuration file.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+#ifndef __CH32V10x_CONF_H
+#define __CH32V10x_CONF_H
+
+#include "ch32v10x_adc.h"
+#include "ch32v10x_bkp.h"
+#include "ch32v10x_crc.h"
+#include "ch32v10x_dbgmcu.h"
+#include "ch32v10x_dma.h"
+#include "ch32v10x_exti.h"
+#include "ch32v10x_flash.h"
+#include "ch32v10x_gpio.h"
+#include "ch32v10x_i2c.h"
+#include "ch32v10x_iwdg.h"
+#include "ch32v10x_pwr.h"
+#include "ch32v10x_rcc.h"
+#include "ch32v10x_rtc.h"
+#include "ch32v10x_spi.h"
+#include "ch32v10x_tim.h"
+#include "ch32v10x_usart.h"
+#include "ch32v10x_wwdg.h"
+#include "ch32v10x_usb.h"
+#include "ch32v10x_usb_host.h"
+#include "ch32v10x_it.h"
+#include "ch32v10x_misc.h"
+
+#endif /* __CH32V10x_CONF_H */
--- a/hw/bsp/ch32v10x/ch32v10x_it.h
+++ b/hw/bsp/ch32v10x/ch32v10x_it.h
@ -0,0 +1,15 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : ch32v10x_it.h
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2022/08/20
+ * Description        : This file contains the headers of the interrupt handlers.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+#ifndef __CH32V10x_IT_H
+#define __CH32V10x_IT_H
+
+#endif /* __CH32V10x_IT_H */
--- a/hw/bsp/ch32v10x/family.c
+++ b/hw/bsp/ch32v10x/family.c
@ -0,0 +1,148 @@
+#include <stdio.h>
+
+// https://github.com/openwch/ch32v307/pull/90
+// https://github.com/openwch/ch32v20x/pull/12
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#endif
+
+#include "ch32v10x.h"
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+#include "bsp/board_api.h"
+#include "board.h"
+
+__attribute__((interrupt)) __attribute__((used))
+void USBHD_IRQHandler(void) {
+  #if CFG_TUD_WCH_USBIP_USBFS
+  tud_int_handler(0);
+  #endif
+}
+
+__attribute__((interrupt)) __attribute__((used))
+void USBWakeUp_IRQHandler(void) {
+  #if CFG_TUD_WCH_USBIP_USBFS
+  tud_int_handler(0);
+  #endif
+}
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+
+__attribute__((interrupt)) __attribute__((used))
+void SysTick_Handler(void) {
+  SysTick->CNTL0 = SysTick->CNTL1 = SysTick->CNTL2 = SysTick->CNTL3 = 0;
+  SysTick->CNTH0 = SysTick->CNTH1 = SysTick->CNTH2 = SysTick->CNTH3 = 0;
+  system_ticks++;
+}
+
+uint32_t SysTick_Config(uint32_t ticks) {
+  NVIC_EnableIRQ(SysTicK_IRQn);
+  SysTick->CTLR = 0;
+  SysTick->CNTL0 = SysTick->CNTL1 = SysTick->CNTL2 = SysTick->CNTL3 = 0;
+  SysTick->CNTH0 = SysTick->CNTH1 = SysTick->CNTH2 = SysTick->CNTH3 = 0;
+
+  SysTick->CMPLR0 = (u8)(ticks & 0xFF);
+  SysTick->CMPLR1 = (u8)(ticks >> 8);
+  SysTick->CMPLR2 = (u8)(ticks >> 16);
+  SysTick->CMPLR3 = (u8)(ticks >> 24);
+
+  SysTick->CMPHR0 = SysTick->CMPHR1 = SysTick->CMPHR2 =   SysTick->CMPHR3 = 0;
+  SysTick->CTLR = 1;
+  return 0;
+}
+
+uint32_t board_millis(void) {
+  return system_ticks;
+}
+#endif
+
+void board_init(void) {
+  __disable_irq();
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  SysTick_Config(SystemCoreClock / 1000);
+#endif
+
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
+
+  EXTEN->EXTEN_CTR |= EXTEN_USBFS_IO_EN;
+  uint8_t usb_div;
+  switch (SystemCoreClock) {
+    case 48000000: usb_div = RCC_USBCLKSource_PLLCLK_Div1; break;
+    case 72000000: usb_div = RCC_USBCLKSource_PLLCLK_1Div5; break;
+    default: TU_ASSERT(0,); break;
+  }
+  RCC_USBCLKConfig(usb_div);
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_USBFS, ENABLE);
+
+  #ifdef LED_PIN
+  GPIO_InitTypeDef led_init = {
+      .GPIO_Pin = LED_PIN,
+      .GPIO_Mode = GPIO_Mode_Out_OD,
+      .GPIO_Speed = GPIO_Speed_50MHz,
+  };
+  GPIO_Init(LED_PORT, &led_init);
+  #endif
+
+  #ifdef BUTTON_PIN
+  GPIO_InitTypeDef button_init = {
+      .GPIO_Pin = BUTTON_PIN,
+      .GPIO_Mode = GPIO_Mode_IPU,
+      .GPIO_Speed = GPIO_Speed_50MHz,
+  };
+  GPIO_Init(BUTTON_PORT, &button_init);
+  #endif
+
+  // UART TX is PA9
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
+  GPIO_InitTypeDef usart_init = {
+    .GPIO_Pin = GPIO_Pin_9,
+    .GPIO_Speed = GPIO_Speed_50MHz,
+    .GPIO_Mode = GPIO_Mode_AF_PP,
+  };
+  GPIO_Init(GPIOA, &usart_init);
+
+  USART_InitTypeDef usart = {
+    .USART_BaudRate = 115200,
+    .USART_WordLength = USART_WordLength_8b,
+    .USART_StopBits = USART_StopBits_1,
+    .USART_Parity = USART_Parity_No,
+    .USART_Mode = USART_Mode_Tx,
+    .USART_HardwareFlowControl = USART_HardwareFlowControl_None,
+  };
+  USART_Init(USART1, &usart);
+  USART_Cmd(USART1, ENABLE);
+
+  __enable_irq();
+
+  board_led_write(true);
+}
+
+void board_led_write(bool state) {
+  GPIO_WriteBit(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void) {
+  return BUTTON_STATE_ACTIVE == GPIO_ReadInputDataBit(BUTTON_PORT, BUTTON_PIN);
+}
+
+int board_uart_read(uint8_t *buf, int len) {
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+int board_uart_write(void const *buf, int len) {
+  const char *bufc = (const char *) buf;
+  for (int i = 0; i < len; i++) {
+    while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
+    USART_SendData(USART1, *bufc++);
+  }
+
+  return len;
+}
--- a/hw/bsp/ch32v10x/family.cmake
+++ b/hw/bsp/ch32v10x/family.cmake
@ -0,0 +1,117 @@
+include_guard()
+
+#set(UF2_FAMILY_ID 0x699b62ec)
+set(CH32_FAMILY ch32v10x)
+set(SDK_DIR ${TOP}/hw/mcu/wch/ch32v103)
+set(SDK_SRC_DIR ${SDK_DIR}/EVT/EXAM/SRC)
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+# toolchain set up
+set(CMAKE_SYSTEM_PROCESSOR rv32imac-ilp32 CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/riscv_${TOOLCHAIN}.cmake)
+
+set(FAMILY_MCUS CH32V103 CACHE INTERNAL "")
+set(OPENOCD_OPTION "-f ${CMAKE_CURRENT_LIST_DIR}/wch-riscv.cfg")
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+function(add_board_target BOARD_TARGET)
+  if (TARGET ${BOARD_TARGET})
+    return()
+  endif()
+
+  if (NOT DEFINED LD_FILE_GNU)
+    set(LD_FILE_GNU ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/linker/${CH32_FAMILY}.ld)
+  endif ()
+  set(LD_FILE_Clang ${LD_FILE_GNU})
+
+  if (NOT DEFINED STARTUP_FILE_GNU)
+    set(STARTUP_FILE_GNU ${SDK_SRC_DIR}/Startup/startup_${CH32_FAMILY}.S)
+  endif ()
+  set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
+
+  add_library(${BOARD_TARGET} STATIC
+    ${SDK_SRC_DIR}/Core/core_riscv.c
+    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_gpio.c
+    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_misc.c
+    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_rcc.c
+    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_usart.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/system_${CH32_FAMILY}.c
+    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${SDK_SRC_DIR}/Core
+    ${SDK_SRC_DIR}/Peripheral/inc
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    )
+  target_compile_definitions(${BOARD_TARGET} PUBLIC
+    )
+
+  update_board(${BOARD_TARGET})
+
+  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    target_compile_options(${BOARD_TARGET} PUBLIC
+      -mcmodel=medany
+      )
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -Wl,--defsym=__FLASH_SIZE=${LD_FLASH_SIZE}
+      -Wl,--defsym=__RAM_SIZE=${LD_RAM_SIZE}
+      -nostartfiles
+      --specs=nosys.specs --specs=nano.specs
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    message(FATAL_ERROR "Clang is not supported for MSP432E4")
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_IAR}"
+      )
+  endif ()
+endfunction()
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+function(family_configure_example TARGET RTOS)
+  family_configure_common(${TARGET} ${RTOS})
+
+  # Board target
+  add_board_target(board_${BOARD})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  # Add TinyUSB target and port source
+  family_add_tinyusb(${TARGET} OPT_MCU_CH32V103 ${RTOS})
+
+  target_sources(${TARGET}-tinyusb PUBLIC
+    ${TOP}/src/portable/wch/dcd_ch32_usbfs.c
+    )
+  target_link_libraries(${TARGET}-tinyusb PUBLIC board_${BOARD})
+
+  # Link dependencies
+  target_link_libraries(${TARGET} PUBLIC board_${BOARD} ${TARGET}-tinyusb)
+
+  # Flashing
+  family_add_bin_hex(${TARGET})
+  family_flash_openocd_wch(${TARGET})
+
+  #family_add_uf2(${TARGET} ${UF2_FAMILY_ID})
+  #family_flash_uf2(${TARGET} ${UF2_FAMILY_ID})
+endfunction()
--- a/hw/bsp/ch32v10x/family.mk
+++ b/hw/bsp/ch32v10x/family.mk
@ -0,0 +1,53 @@
+# https://www.embecosm.com/resources/tool-chain-downloads/#riscv-stable
+#CROSS_COMPILE ?= riscv32-unknown-elf-
+
+# Toolchain from https://nucleisys.com/download.php
+#CROSS_COMPILE ?= riscv-nuclei-elf-
+
+# Toolchain from https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack
+CROSS_COMPILE ?= riscv-none-elf-
+
+CH32_FAMILY = ch32v10x
+SDK_DIR = hw/mcu/wch/ch32v103
+SDK_SRC_DIR = $(SDK_DIR)/EVT/EXAM/SRC
+
+include $(TOP)/$(BOARD_PATH)/board.mk
+CPU_CORE ?= rv32imac-ilp32
+
+# Port0 use FSDev, Port1 use USBFS
+PORT ?= 0
+
+CFLAGS += \
+	-mcmodel=medany \
+	-ffat-lto-objects \
+	-flto \
+	-DCFG_TUSB_MCU=OPT_MCU_CH32V103
+
+# https://github.com/openwch/ch32v20x/pull/12
+CFLAGS += -Wno-error=strict-prototypes
+
+LDFLAGS_GCC += \
+	-nostdlib -nostartfiles \
+	--specs=nosys.specs --specs=nano.specs \
+
+LD_FILE = $(FAMILY_PATH)/linker/${CH32_FAMILY}.ld
+
+SRC_C += \
+	src/portable/wch/dcd_ch32_usbfs.c \
+	$(SDK_SRC_DIR)/Core/core_riscv.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_gpio.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_misc.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_rcc.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_usart.c \
+
+SRC_S += $(SDK_SRC_DIR)/Startup/startup_${CH32_FAMILY}.S
+
+INC += \
+	$(TOP)/$(BOARD_PATH) \
+	$(TOP)/$(SDK_SRC_DIR)/Core \
+	$(TOP)/$(SDK_SRC_DIR)/Peripheral/inc \
+
+FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/RISC-V
+
+OPENOCD_WCH_OPTION=-f $(TOP)/$(FAMILY_PATH)/wch-riscv.cfg
+flash: flash-openocd-wch
--- a/hw/bsp/ch32v10x/linker/ch32v10x.ld
+++ b/hw/bsp/ch32v10x/linker/ch32v10x.ld
@ -0,0 +1,165 @@
+/* Define default values if not already defined */
+__FLASH_SIZE = DEFINED(__flash_size) ? __flash_size : 64K;
+__RAM_SIZE = DEFINED(__ram_size) ? __ram_size : 20K;
+
+MEMORY
+{
+	FLASH (rx) : ORIGIN = 0x00000000, LENGTH = __FLASH_SIZE
+	RAM (xrw) : ORIGIN = 0x20000000, LENGTH = __RAM_SIZE
+}
+
+ENTRY( _start )
+
+__stack_size = 2048;
+
+PROVIDE( _stack_size = __stack_size );
+
+SECTIONS
+{
+	.init :
+	{
+		_sinit = .;
+		. = ALIGN(4);
+		KEEP(*(SORT_NONE(.init)))
+		. = ALIGN(4);
+		_einit = .;
+	} >FLASH AT>FLASH
+
+  .vector :
+  {
+      *(.vector);
+	  . = ALIGN(64);
+  } >FLASH AT>FLASH
+
+	.text :
+	{
+		. = ALIGN(4);
+		*(.text)
+		*(.text.*)
+		*(.rodata)
+		*(.rodata*)
+		*(.gnu.linkonce.t.*)
+		. = ALIGN(4);
+	} >FLASH AT>FLASH
+
+	.fini :
+	{
+		KEEP(*(SORT_NONE(.fini)))
+		. = ALIGN(4);
+	} >FLASH AT>FLASH
+
+	PROVIDE( _etext = . );
+	PROVIDE( _eitcm = . );
+
+	.preinit_array  :
+	{
+	  PROVIDE_HIDDEN (__preinit_array_start = .);
+	  KEEP (*(.preinit_array))
+	  PROVIDE_HIDDEN (__preinit_array_end = .);
+	} >FLASH AT>FLASH
+
+	.init_array     :
+	{
+	  PROVIDE_HIDDEN (__init_array_start = .);
+	  KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+	  KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
+	  PROVIDE_HIDDEN (__init_array_end = .);
+	} >FLASH AT>FLASH
+
+	.fini_array     :
+	{
+	  PROVIDE_HIDDEN (__fini_array_start = .);
+	  KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
+	  KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
+	  PROVIDE_HIDDEN (__fini_array_end = .);
+	} >FLASH AT>FLASH
+
+	.ctors          :
+	{
+	  /* gcc uses crtbegin.o to find the start of
+	     the constructors, so we make sure it is
+	     first.  Because this is a wildcard, it
+	     doesn't matter if the user does not
+	     actually link against crtbegin.o; the
+	     linker won't look for a file to match a
+	     wildcard.  The wildcard also means that it
+	     doesn't matter which directory crtbegin.o
+	     is in.  */
+	  KEEP (*crtbegin.o(.ctors))
+	  KEEP (*crtbegin?.o(.ctors))
+	  /* We don't want to include the .ctor section from
+	     the crtend.o file until after the sorted ctors.
+	     The .ctor section from the crtend file contains the
+	     end of ctors marker and it must be last */
+	  KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+	  KEEP (*(SORT(.ctors.*)))
+	  KEEP (*(.ctors))
+	} >FLASH AT>FLASH
+
+	.dtors          :
+	{
+	  KEEP (*crtbegin.o(.dtors))
+	  KEEP (*crtbegin?.o(.dtors))
+	  KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+	  KEEP (*(SORT(.dtors.*)))
+	  KEEP (*(.dtors))
+	} >FLASH AT>FLASH
+
+	.dalign :
+	{
+		. = ALIGN(4);
+		PROVIDE(_data_vma = .);
+	} >RAM AT>FLASH
+
+	.dlalign :
+	{
+		. = ALIGN(4);
+		PROVIDE(_data_lma = .);
+	} >FLASH AT>FLASH
+
+	.data :
+	{
+    	*(.gnu.linkonce.r.*)
+    	*(.data .data.*)
+    	*(.gnu.linkonce.d.*)
+		. = ALIGN(8);
+    	PROVIDE( __global_pointer$ = . + 0x800 );
+    	*(.sdata .sdata.*)
+		*(.sdata2.*)
+    	*(.gnu.linkonce.s.*)
+    	. = ALIGN(8);
+    	*(.srodata.cst16)
+    	*(.srodata.cst8)
+    	*(.srodata.cst4)
+    	*(.srodata.cst2)
+    	*(.srodata .srodata.*)
+    	. = ALIGN(4);
+		PROVIDE( _edata = .);
+	} >RAM AT>FLASH
+
+	.bss :
+	{
+		. = ALIGN(4);
+		PROVIDE( _sbss = .);
+  	    *(.sbss*)
+        *(.gnu.linkonce.sb.*)
+		*(.bss*)
+     	*(.gnu.linkonce.b.*)
+		*(COMMON*)
+		. = ALIGN(4);
+		PROVIDE( _ebss = .);
+	} >RAM AT>FLASH
+
+	PROVIDE( _end = _ebss);
+	PROVIDE( end = . );
+
+    .stack ORIGIN(RAM) + LENGTH(RAM) - __stack_size :
+    {
+        PROVIDE( _heap_end = . );
+        . = ALIGN(4);
+        PROVIDE(_susrstack = . );
+        . = . + __stack_size;
+        PROVIDE( _eusrstack = .);
+    } >RAM
+
+}
--- a/hw/bsp/ch32v10x/system_ch32v10x.c
+++ b/hw/bsp/ch32v10x/system_ch32v10x.c
@ -0,0 +1,600 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : system_ch32v10x.c
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2020/04/30
+ * Description        : CH32V10x Device Peripheral Access Layer System Source File.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+#include "ch32v10x.h"
+
+/*
+ * Uncomment the line corresponding to the desired System clock (SYSCLK) frequency (after
+ * reset the HSI is used as SYSCLK source).
+ * If none of the define below is enabled, the HSI is used as System clock source.
+ */
+//#define SYSCLK_FREQ_HSE    HSE_VALUE
+//#define SYSCLK_FREQ_48MHz_HSE  48000000
+//#define SYSCLK_FREQ_56MHz_HSE  56000000
+#define SYSCLK_FREQ_72MHz_HSE  72000000
+//#define SYSCLK_FREQ_HSI    HSI_VALUE
+//#define SYSCLK_FREQ_48MHz_HSI  48000000
+//#define SYSCLK_FREQ_56MHz_HSI  56000000
+//#define SYSCLK_FREQ_72MHz_HSI  72000000
+
+/* Clock Definitions */
+#ifdef SYSCLK_FREQ_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_HSE;              /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_48MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_48MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_56MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_56MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_72MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_72MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_48MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_48MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_56MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_56MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_72MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_72MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#else
+uint32_t SystemCoreClock         = HSI_VALUE;                    /* System Clock Frequency (Core Clock) */
+
+#endif
+
+__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+
+/* ch32v10x_system_private_function_proto_types */
+static void SetSysClock(void);
+
+#ifdef SYSCLK_FREQ_HSE
+static void SetSysClockToHSE( void );
+#elif defined SYSCLK_FREQ_48MHz_HSE
+static void SetSysClockTo48_HSE( void );
+#elif defined SYSCLK_FREQ_56MHz_HSE
+static void SetSysClockTo56_HSE( void );
+#elif defined SYSCLK_FREQ_72MHz_HSE
+static void SetSysClockTo72_HSE( void );
+#elif defined SYSCLK_FREQ_48MHz_HSI
+static void SetSysClockTo48_HSI( void );
+#elif defined SYSCLK_FREQ_56MHz_HSI
+static void SetSysClockTo56_HSI( void );
+#elif defined SYSCLK_FREQ_72MHz_HSI
+static void SetSysClockTo72_HSI( void );
+
+#endif
+
+/*********************************************************************
+ * @fn      SystemInit
+ *
+ * @brief   Setup the microcontroller system Initialize the Embedded Flash Interface,
+ *        the PLL and update the SystemCoreClock variable.
+ *
+ * @return  none
+ */
+void SystemInit(void)
+{
+    RCC->CTLR |= (uint32_t)0x00000001;
+    RCC->CFGR0 &= (uint32_t)0xF8FF0000;
+    RCC->CTLR &= (uint32_t)0xFEF6FFFF;
+    RCC->CTLR &= (uint32_t)0xFFFBFFFF;
+    RCC->CFGR0 &= (uint32_t)0xFF80FFFF;
+    RCC->INTR = 0x009F0000;
+    SetSysClock();
+}
+
+/*********************************************************************
+ * @fn      SystemCoreClockUpdate
+ *
+ * @brief   Update SystemCoreClock variable according to Clock Register Values.
+ *
+ * @return  none
+ */
+void SystemCoreClockUpdate(void)
+{
+    uint32_t tmp = 0, pllmull = 0, pllsource = 0;
+
+    tmp = RCC->CFGR0 & RCC_SWS;
+
+    switch(tmp)
+    {
+        case 0x00:
+            SystemCoreClock = HSI_VALUE;
+            break;
+        case 0x04:
+            SystemCoreClock = HSE_VALUE;
+            break;
+        case 0x08:
+            pllmull = RCC->CFGR0 & RCC_PLLMULL;
+            pllsource = RCC->CFGR0 & RCC_PLLSRC;
+            pllmull = (pllmull >> 18) + 2;
+            if(pllsource == 0x00)
+            {
+                if( EXTEN->EXTEN_CTR & EXTEN_PLL_HSI_PRE )
+                {
+                    SystemCoreClock = ( HSI_VALUE ) * pllmull;
+                }
+                else
+                {
+                    SystemCoreClock = ( HSI_VALUE >> 1 ) * pllmull;
+                }
+            }
+            else
+            {
+                if((RCC->CFGR0 & RCC_PLLXTPRE) != (uint32_t)RESET)
+                {
+                    SystemCoreClock = (HSE_VALUE >> 1) * pllmull;
+                }
+                else
+                {
+                    SystemCoreClock = HSE_VALUE * pllmull;
+                }
+            }
+            break;
+        default:
+            SystemCoreClock = HSI_VALUE;
+            break;
+    }
+
+    tmp = AHBPrescTable[((RCC->CFGR0 & RCC_HPRE) >> 4)];
+    SystemCoreClock >>= tmp;
+}
+
+/*********************************************************************
+ * @fn      SetSysClock
+ *
+ * @brief   Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClock(void)
+{
+    //GPIO_IPD_Unused();
+#ifdef SYSCLK_FREQ_HSE
+    SetSysClockToHSE();
+#elif defined SYSCLK_FREQ_48MHz_HSE
+    SetSysClockTo48_HSE();
+#elif defined SYSCLK_FREQ_56MHz_HSE
+    SetSysClockTo56_HSE();
+#elif defined SYSCLK_FREQ_72MHz_HSE
+    SetSysClockTo72_HSE();
+#elif defined SYSCLK_FREQ_48MHz_HSI
+    SetSysClockTo48_HSI();
+#elif defined SYSCLK_FREQ_56MHz_HSI
+    SetSysClockTo56_HSI();
+#elif defined SYSCLK_FREQ_72MHz_HSI
+    SetSysClockTo72_HSI();
+
+#endif
+
+    /* If none of the define above is enabled, the HSI is used as System clock
+     * source (default after reset)
+     */
+}
+
+#ifdef SYSCLK_FREQ_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockToHSE
+ *
+ * @brief   Sets HSE as System clock source and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockToHSE(void)
+{
+    __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+
+    RCC->CTLR |= ((uint32_t)RCC_HSEON);
+
+    /* Wait till HSE is ready and if Time out is reached exit */
+    do
+    {
+        HSEStatus = RCC->CTLR & RCC_HSERDY;
+        StartUpCounter++;
+    } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+    if((RCC->CTLR & RCC_HSERDY) != RESET)
+    {
+        HSEStatus = (uint32_t)0x01;
+    }
+    else
+    {
+        HSEStatus = (uint32_t)0x00;
+    }
+
+    if(HSEStatus == (uint32_t)0x01)
+    {
+        FLASH->ACTLR |= FLASH_ACTLR_PRFTBE;
+        /* Flash 0 wait state */
+        FLASH->ACTLR &= (uint32_t)((uint32_t)~FLASH_ACTLR_LATENCY);
+        FLASH->ACTLR |= (uint32_t)FLASH_ACTLR_LATENCY_0;
+
+        /* HCLK = SYSCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+        /* PCLK2 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+        /* PCLK1 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV1;
+
+        /* Select HSE as system clock source */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+        RCC->CFGR0 |= (uint32_t)RCC_SW_HSE;
+
+        /* Wait till HSE is used as system clock source */
+        while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x04)
+        {
+        }
+    }
+    else
+    {
+        /* If HSE fails to start-up, the application will have wrong clock
+         * configuration. User can add here some code to deal with this error
+         */
+    }
+}
+
+
+#elif defined SYSCLK_FREQ_48MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo48_HSE
+ *
+ * @brief   Sets System clock frequency to 48MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo48_HSE(void)
+{
+    __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+
+    RCC->CTLR |= ((uint32_t)RCC_HSEON);
+    /* Wait till HSE is ready and if Time out is reached exit */
+    do
+    {
+        HSEStatus = RCC->CTLR & RCC_HSERDY;
+        StartUpCounter++;
+    } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+    if((RCC->CTLR & RCC_HSERDY) != RESET)
+    {
+        HSEStatus = (uint32_t)0x01;
+    }
+    else
+    {
+        HSEStatus = (uint32_t)0x00;
+    }
+
+    if(HSEStatus == (uint32_t)0x01)
+    {
+        /* Enable Prefetch Buffer */
+        FLASH->ACTLR |= FLASH_ACTLR_PRFTBE;
+
+        /* Flash 1 wait state */
+        FLASH->ACTLR &= (uint32_t)((uint32_t)~FLASH_ACTLR_LATENCY);
+        FLASH->ACTLR |= (uint32_t)FLASH_ACTLR_LATENCY_1;
+
+        /* HCLK = SYSCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+        /* PCLK2 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+        /* PCLK1 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+        /*  PLL configuration: PLLCLK = HSE * 6 = 48 MHz */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+        RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLMULL6);
+
+        /* Enable PLL */
+        RCC->CTLR |= RCC_PLLON;
+        /* Wait till PLL is ready */
+        while((RCC->CTLR & RCC_PLLRDY) == 0)
+        {
+        }
+        /* Select PLL as system clock source */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+        RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+        /* Wait till PLL is used as system clock source */
+        while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+        {
+        }
+    }
+    else
+    {
+        /*
+         * If HSE fails to start-up, the application will have wrong clock
+         * configuration. User can add here some code to deal with this error
+         */
+    }
+}
+
+#elif defined SYSCLK_FREQ_56MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo56_HSE
+ *
+ * @brief   Sets System clock frequency to 56MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo56_HSE(void)
+{
+    __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+
+    RCC->CTLR |= ((uint32_t)RCC_HSEON);
+
+    /* Wait till HSE is ready and if Time out is reached exit */
+    do
+    {
+        HSEStatus = RCC->CTLR & RCC_HSERDY;
+        StartUpCounter++;
+    } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+    if((RCC->CTLR & RCC_HSERDY) != RESET)
+    {
+        HSEStatus = (uint32_t)0x01;
+    }
+    else
+    {
+        HSEStatus = (uint32_t)0x00;
+    }
+
+    if(HSEStatus == (uint32_t)0x01)
+    {
+        /* Enable Prefetch Buffer */
+        FLASH->ACTLR |= FLASH_ACTLR_PRFTBE;
+
+        /* Flash 2 wait state */
+        FLASH->ACTLR &= (uint32_t)((uint32_t)~FLASH_ACTLR_LATENCY);
+        FLASH->ACTLR |= (uint32_t)FLASH_ACTLR_LATENCY_2;
+
+        /* HCLK = SYSCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+        /* PCLK2 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+        /* PCLK1 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+        /* PLL configuration: PLLCLK = HSE * 7 = 56 MHz */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+        RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLMULL7);
+        /* Enable PLL */
+        RCC->CTLR |= RCC_PLLON;
+        /* Wait till PLL is ready */
+        while((RCC->CTLR & RCC_PLLRDY) == 0)
+        {
+        }
+
+        /* Select PLL as system clock source */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+        RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+        /* Wait till PLL is used as system clock source */
+        while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+        {
+        }
+    }
+    else
+    {
+        /*
+         * If HSE fails to start-up, the application will have wrong clock
+         * configuration. User can add here some code to deal with this error
+         */
+    }
+}
+
+#elif defined SYSCLK_FREQ_72MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo72_HSE
+ *
+ * @brief   Sets System clock frequency to 72MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo72_HSE(void)
+{
+    __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+
+    RCC->CTLR |= ((uint32_t)RCC_HSEON);
+
+    /* Wait till HSE is ready and if Time out is reached exit */
+    do
+    {
+        HSEStatus = RCC->CTLR & RCC_HSERDY;
+        StartUpCounter++;
+    } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+    if((RCC->CTLR & RCC_HSERDY) != RESET)
+    {
+        HSEStatus = (uint32_t)0x01;
+    }
+    else
+    {
+        HSEStatus = (uint32_t)0x00;
+    }
+
+    if(HSEStatus == (uint32_t)0x01)
+    {
+        /* Enable Prefetch Buffer */
+        FLASH->ACTLR |= FLASH_ACTLR_PRFTBE;
+
+        /* Flash 2 wait state */
+        FLASH->ACTLR &= (uint32_t)((uint32_t)~FLASH_ACTLR_LATENCY);
+        FLASH->ACTLR |= (uint32_t)FLASH_ACTLR_LATENCY_2;
+
+        /* HCLK = SYSCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+        /* PCLK2 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+        /* PCLK1 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+        /*  PLL configuration: PLLCLK = HSE * 9 = 72 MHz */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE |
+                                              RCC_PLLMULL));
+        RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLMULL9);
+        /* Enable PLL */
+        RCC->CTLR |= RCC_PLLON;
+        /* Wait till PLL is ready */
+        while((RCC->CTLR & RCC_PLLRDY) == 0)
+        {
+        }
+        /* Select PLL as system clock source */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+        RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+        /* Wait till PLL is used as system clock source */
+        while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+        {
+        }
+    }
+    else
+    {
+        /*
+         * If HSE fails to start-up, the application will have wrong clock
+         * configuration. User can add here some code to deal with this error
+         */
+    }
+}
+
+#elif defined SYSCLK_FREQ_48MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo48_HSI
+ *
+ * @brief   Sets System clock frequency to 48MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo48_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* Enable Prefetch Buffer */
+    FLASH->ACTLR |= FLASH_ACTLR_PRFTBE;
+
+    /* Flash 1 wait state */
+    FLASH->ACTLR &= (uint32_t)((uint32_t)~FLASH_ACTLR_LATENCY);
+    FLASH->ACTLR |= (uint32_t)FLASH_ACTLR_LATENCY_1;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 6 = 48 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL6);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+#elif defined SYSCLK_FREQ_56MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo56_HSI
+ *
+ * @brief   Sets System clock frequency to 56MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo56_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* Enable Prefetch Buffer */
+    FLASH->ACTLR |= FLASH_ACTLR_PRFTBE;
+
+    /* Flash 1 wait state */
+    FLASH->ACTLR &= (uint32_t)((uint32_t)~FLASH_ACTLR_LATENCY);
+    FLASH->ACTLR |= (uint32_t)FLASH_ACTLR_LATENCY_1;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 7 = 56 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL7);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+#elif defined SYSCLK_FREQ_72MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo72_HSI
+ *
+ * @brief   Sets System clock frequency to 72MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo72_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* Enable Prefetch Buffer */
+    FLASH->ACTLR |= FLASH_ACTLR_PRFTBE;
+
+    /* Flash 1 wait state */
+    FLASH->ACTLR &= (uint32_t)((uint32_t)~FLASH_ACTLR_LATENCY);
+    FLASH->ACTLR |= (uint32_t)FLASH_ACTLR_LATENCY_1;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 9 = 72 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL9);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+#endif
--- a/hw/bsp/ch32v10x/system_ch32v10x.h
+++ b/hw/bsp/ch32v10x/system_ch32v10x.h
@ -0,0 +1,29 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : system_ch32v10x.h
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2020/04/30
+ * Description        : CH32V10x Device Peripheral Access Layer System Header File.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+#ifndef __SYSTEM_CH32V10x_H
+#define __SYSTEM_CH32V10x_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern uint32_t SystemCoreClock; /* System Clock Frequency (Core Clock) */
+
+/* System_Exported_Functions */
+extern void SystemInit(void);
+extern void SystemCoreClockUpdate(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*__CH32V10x_SYSTEM_H */
--- a/hw/bsp/ch32v10x/wch-riscv.cfg
+++ b/hw/bsp/ch32v10x/wch-riscv.cfg
@ -0,0 +1,17 @@
+adapter driver wlinke
+adapter speed 6000
+transport select sdi
+
+wlink_set_address 0x00000000
+set _CHIPNAME wch_riscv
+sdi newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x00001
+
+set _TARGETNAME $_CHIPNAME.cpu
+
+target create $_TARGETNAME.0 wch_riscv -chain-position $_TARGETNAME
+$_TARGETNAME.0 configure  -work-area-phys 0x20000000 -work-area-size 10000 -work-area-backup 1
+set _FLASHNAME $_CHIPNAME.flash
+
+flash bank $_FLASHNAME wch_riscv 0x00000000 0 0 0 $_TARGETNAME.0
+
+echo "Ready for Remote Connections"
--- a/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.mk
+++ b/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.mk
@ -1,7 +0,0 @@
-MCU_VARIANT = D6
-
-CFLAGS += -DCFG_EXAMPLE_MSC_DUAL_READONLY
-
-LDFLAGS += \
-  -Wl,--defsym=__flash_size=64K \
-  -Wl,--defsym=__ram_size=20K \
--- a/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.cmake
+++ b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.cmake
@ -0,0 +1,15 @@
+set(MCU_VARIANT D6)
+
+# 64KB zero-wait, 224KB total flash
+#set(LD_FLASH_SIZE 64K)
+set(LD_FLASH_SIZE 224K)
+set(LD_RAM_SIZE 20K)
+
+# set(LD_FILE_GNU ${CMAKE_CURRENT_LIST_DIR}/../../linker/${CH32_FAMILY}_tinyuf2.ld)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    SYSCLK_FREQ_144MHz_HSE=144000000
+    CFG_EXAMPLE_MSC_DUAL_READONLY
+    )
+endfunction()
--- a/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.h
+++ b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.h
@ -0,0 +1,21 @@
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LED_PORT       GPIOA
+#define LED_PIN        GPIO_Pin_0
+#define LED_STATE_ON   0
+
+#define UART_DEV        USART1
+#define UART_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE)
+#define UART_TX_PIN     GPIO_Pin_9
+#define UART_RX_PIN     GPIO_Pin_10
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- a/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.mk
+++ b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.mk
@ -0,0 +1,11 @@
+MCU_VARIANT = D6
+
+CFLAGS += \
+  -DSYSCLK_FREQ_144MHz_HSE=144000000 \
+  -DCH32_FLASH_ENHANCE_READ_MODE=1 \
+  -DCFG_EXAMPLE_MSC_DUAL_READONLY \
+
+# 64KB zero-wait, 224KB total flash
+LDFLAGS += \
+  -Wl,--defsym=__FLASH_SIZE=224K \
+  -Wl,--defsym=__RAM_SIZE=20K \
--- a/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.cmake
+++ b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.cmake
@ -0,0 +1,13 @@
+set(MCU_VARIANT D6)
+
+# 32KB zero-wait, 224KB total flash
+#set(LD_FLASH_SIZE 32K)
+set(LD_FLASH_SIZE 224K)
+set(LD_RAM_SIZE 10K)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    SYSCLK_FREQ_144MHz_HSI=144000000
+    CFG_EXAMPLE_MSC_DUAL_READONLY
+    )
+endfunction()
--- a/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.h
+++ b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.h
@ -0,0 +1,21 @@
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LED_PORT       GPIOA
+#define LED_PIN        GPIO_Pin_0
+#define LED_STATE_ON   0
+
+#define UART_DEV        USART2
+#define UART_CLOCK_EN() RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE)
+#define UART_TX_PIN     GPIO_Pin_2
+#define UART_RX_PIN     GPIO_Pin_3
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- a/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.mk
+++ b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.mk
@ -0,0 +1,11 @@
+MCU_VARIANT = D6
+
+CFLAGS += \
+  -DSYSCLK_FREQ_144MHz_HSI=144000000 \
+  -DCH32_FLASH_ENHANCE_READ_MODE=1 \
+  -DCFG_EXAMPLE_MSC_DUAL_READONLY \
+
+# 32KB zero-wait, 224KB total flash
+LDFLAGS += \
+  -Wl,--defsym=__FLASH_SIZE=224K \
+  -Wl,--defsym=__RAM_SIZE=10K \
--- a/hw/bsp/ch32v20x/boards/nanoch32v203/board.cmake
+++ b/hw/bsp/ch32v20x/boards/nanoch32v203/board.cmake
@ -1,10 +1,13 @@
 set(MCU_VARIANT D6)

-set(LD_FLASH_SIZE 64K)
+# 64KB zero-wait, 224KB total flash
+#set(LD_FLASH_SIZE 64K)
+set(LD_FLASH_SIZE 224K)
 set(LD_RAM_SIZE 20K)

 function(update_board TARGET)
  target_compile_definitions(${TARGET} PUBLIC
+    SYSCLK_FREQ_144MHz_HSE=144000000
    CFG_EXAMPLE_MSC_DUAL_READONLY
    )
 endfunction()
--- a/hw/bsp/ch32v20x/boards/nanoch32v203/board.h
+++ b/hw/bsp/ch32v20x/boards/nanoch32v203/board.h
@ -8,7 +8,11 @@ extern "C" {
 #define LED_PORT       GPIOA
 #define LED_PIN        GPIO_Pin_15
 #define LED_STATE_ON   0
-#define LED_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE)
+
+#define UART_DEV        USART1
+#define UART_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE)
+#define UART_TX_PIN     GPIO_Pin_9
+#define UART_RX_PIN     GPIO_Pin_10

 #ifdef __cplusplus
 }
--- a/hw/bsp/ch32v20x/boards/nanoch32v203/board.mk
+++ b/hw/bsp/ch32v20x/boards/nanoch32v203/board.mk
@ -1,7 +1,11 @@
 MCU_VARIANT = D6

-CFLAGS += -DCFG_EXAMPLE_MSC_DUAL_READONLY
+CFLAGS += \
+  -DSYSCLK_FREQ_144MHz_HSE=144000000 \
+	-DCH32_FLASH_ENHANCE_READ_MODE=1 \
+  -DCFG_EXAMPLE_MSC_DUAL_READONLY \

+# 64KB zero-wait , 224KB total flash
 LDFLAGS += \
-  -Wl,--defsym=__flash_size=64K \
-  -Wl,--defsym=__ram_size=20K \
+  -Wl,--defsym=__FLASH_SIZE=224K \
+  -Wl,--defsym=__RAM_SIZE=20K \
--- a/hw/bsp/ch32v20x/core_riscv.h
+++ b/hw/bsp/ch32v20x/core_riscv.h
@ -1,572 +0,0 @@
-/********************************** (C) COPYRIGHT  *******************************
- * File Name          : core_riscv.h
- * Author             : WCH
- * Version            : V1.0.0
- * Date               : 2021/06/06
- * Description        : RISC-V Core Peripheral Access Layer Header File for CH32V20x
-*********************************************************************************
-* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
-* Attention: This software (modified or not) and binary are used for
-* microcontroller manufactured by Nanjing Qinheng Microelectronics.
-*******************************************************************************/
-#ifndef __CORE_RISCV_H__
-#define __CORE_RISCV_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* IO definitions */
-#ifdef __cplusplus
-  #define     __I     volatile                /*  defines 'read only' permissions      */
-#else
-  #define     __I     volatile const          /*  defines 'read only' permissions     */
-#endif
-#define       __O     volatile                /*  defines 'write only' permissions     */
-#define       __IO    volatile                /*  defines 'read / write' permissions   */
-
-/* Standard Peripheral Library old types (maintained for legacy purpose) */
-typedef __I uint64_t vuc64;   /* Read Only */
-typedef __I uint32_t vuc32;   /* Read Only */
-typedef __I uint16_t vuc16;   /* Read Only */
-typedef __I uint8_t  vuc8;    /* Read Only */
-
-typedef const uint64_t uc64;  /* Read Only */
-typedef const uint32_t uc32;  /* Read Only */
-typedef const uint16_t uc16;  /* Read Only */
-typedef const uint8_t  uc8;   /* Read Only */
-
-typedef __I int64_t vsc64;    /* Read Only */
-typedef __I int32_t vsc32;    /* Read Only */
-typedef __I int16_t vsc16;    /* Read Only */
-typedef __I int8_t  vsc8;     /* Read Only */
-
-typedef const int64_t sc64;   /* Read Only */
-typedef const int32_t sc32;   /* Read Only */
-typedef const int16_t sc16;   /* Read Only */
-typedef const int8_t  sc8;    /* Read Only */
-
-typedef __IO uint64_t  vu64;
-typedef __IO uint32_t  vu32;
-typedef __IO uint16_t  vu16;
-typedef __IO uint8_t   vu8;
-
-typedef uint64_t  u64;
-typedef uint32_t  u32;
-typedef uint16_t  u16;
-typedef uint8_t   u8;
-
-typedef __IO int64_t  vs64;
-typedef __IO int32_t  vs32;
-typedef __IO int16_t  vs16;
-typedef __IO int8_t   vs8;
-
-typedef int64_t  s64;
-typedef int32_t  s32;
-typedef int16_t  s16;
-typedef int8_t   s8;
-
-typedef enum {NoREADY = 0, READY = !NoREADY} ErrorStatus;
-
-typedef enum {DISABLE = 0, ENABLE = !DISABLE} FunctionalState;
-
-typedef enum {RESET = 0, SET = !RESET} FlagStatus, ITStatus;
-
-#define   RV_STATIC_INLINE  static  inline
-
-/* memory mapped structure for Program Fast Interrupt Controller (PFIC) */
-typedef struct{
-  __I  uint32_t ISR[8];
-  __I  uint32_t IPR[8];
-  __IO uint32_t ITHRESDR;
-  __IO uint32_t RESERVED;
-  __IO uint32_t CFGR;
-  __I  uint32_t GISR;
-  __IO uint8_t VTFIDR[4];
-  uint8_t RESERVED0[12];
-  __IO uint32_t VTFADDR[4];
-  uint8_t RESERVED1[0x90];
-  __O  uint32_t IENR[8];
-  uint8_t RESERVED2[0x60];
-  __O  uint32_t IRER[8];
-  uint8_t RESERVED3[0x60];
-  __O  uint32_t IPSR[8];
-  uint8_t RESERVED4[0x60];
-  __O  uint32_t IPRR[8];
-  uint8_t RESERVED5[0x60];
-  __IO uint32_t IACTR[8];
-  uint8_t RESERVED6[0xE0];
-  __IO uint8_t IPRIOR[256];
-  uint8_t RESERVED7[0x810];
-  __IO uint32_t SCTLR;
-}PFIC_Type;
-
-/* memory mapped structure for SysTick */
-typedef struct
-{
-    __IO uint32_t CTLR;
-    __IO uint32_t SR;
-    __IO uint64_t CNT;
-    __IO uint64_t CMP;
-}SysTick_Type;
-
-#define PFIC            ((PFIC_Type *) 0xE000E000 )
-#define NVIC            PFIC
-#define NVIC_KEY1       ((uint32_t)0xFA050000)
-#define	NVIC_KEY2		((uint32_t)0xBCAF0000)
-#define	NVIC_KEY3		((uint32_t)0xBEEF0000)
-
-#define SysTick         ((SysTick_Type *) 0xE000F000)
-
-/*********************************************************************
- * @fn      __enable_irq
- *
- * @brief   Enable Global Interrupt
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __enable_irq(void)
-{
-  __asm volatile ("csrw 0x800, %0" : : "r" (0x6088) );
-}
-
-/*********************************************************************
- * @fn      __disable_irq
- *
- * @brief   Disable Global Interrupt
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __disable_irq(void)
-{
-  __asm volatile ("csrw 0x800, %0" : : "r" (0x6000) );
-}
-
-/*********************************************************************
- * @fn      __NOP
- *
- * @brief   nop
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __NOP(void)
-{
-  __asm volatile ("nop");
-}
-
-/*********************************************************************
- * @fn      NVIC_EnableIRQ
- *
- * @brief   Disable Interrupt
- *
- * @param   IRQn - Interrupt Numbers
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
-{
-  NVIC->IENR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_DisableIRQ
- *
- * @brief   Disable Interrupt
- *
- * @param   IRQn - Interrupt Numbers
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
-{
-  NVIC->IRER[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_GetStatusIRQ
- *
- * @brief   Get Interrupt Enable State
- *
- * @param   IRQn - Interrupt Numbers
- *
- * @return  1 - Interrupt Pending Enable
- *          0 - Interrupt Pending Disable
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t NVIC_GetStatusIRQ(IRQn_Type IRQn)
-{
-  return((uint32_t) ((NVIC->ISR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
-}
-
-/*********************************************************************
- * @fn      NVIC_GetPendingIRQ
- *
- * @brief   Get Interrupt Pending State
- *
- * @param   IRQn - Interrupt Numbers
- *
- * @return  1 - Interrupt Pending Enable
- *          0 - Interrupt Pending Disable
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
-{
-  return((uint32_t) ((NVIC->IPR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
-}
-
-/*********************************************************************
- * @fn      NVIC_SetPendingIRQ
- *
- * @brief   Set Interrupt Pending
- *
- * @param   IRQn - Interrupt Numbers
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
-{
-  NVIC->IPSR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_ClearPendingIRQ
- *
- * @brief   Clear Interrupt Pending
- *
- * @param   IRQn - Interrupt Numbers
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
-{
-  NVIC->IPRR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_GetActive
- *
- * @brief   Get Interrupt Active State
- *
- * @param   IRQn - Interrupt Numbers
- *
- * @return  1 - Interrupt Active
- *          0 - Interrupt No Active
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn)
-{
-  return((uint32_t)((NVIC->IACTR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
-}
-
-/*********************************************************************
- * @fn      NVIC_SetPriority
- *
- * @brief   Set Interrupt Priority
- *
- * @param   IRQn - Interrupt Numbers
- *          priority - bit7 - Pre-emption Priority
- *                     bit[6:5] - Subpriority
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint8_t priority)
-{
-  NVIC->IPRIOR[(uint32_t)(IRQn)] = priority;
-}
-
-/*********************************************************************
- * @fn      __WFI
- *
- * @brief   Wait for Interrupt
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __WFI(void)
-{
-  NVIC->SCTLR &= ~(1<<3);	// wfi
-  asm volatile ("wfi");
-}
-
-/*********************************************************************
- * @fn      _SEV
- *
- * @brief   Set Event
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void _SEV(void)
-{
-  uint32_t t;
-
-  t = NVIC->SCTLR;
-  NVIC->SCTLR |= (1<<3)|(1<<5);
-  NVIC->SCTLR = (NVIC->SCTLR & ~(1<<5)) | ( t & (1<<5));
-}
-
-/*********************************************************************
- * @fn      _WFE
- *
- * @brief   Wait for Events
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void _WFE(void)
-{
-  NVIC->SCTLR |= (1<<3);
-  asm volatile ("wfi");
-}
-
-/*********************************************************************
- * @fn      __WFE
- *
- * @brief   Wait for Events
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __WFE(void)
-{
-  _SEV();
-  _WFE();
-  _WFE();
-}
-
-/*********************************************************************
- * @fn      SetVTFIRQ
- *
- * @brief   Set VTF Interrupt
- *
- * @param   addr - VTF interrupt service function base address.
- *          IRQn - Interrupt Numbers
- *          num - VTF Interrupt Numbers
- *          NewState - DISABLE or ENABLE
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void SetVTFIRQ(uint32_t addr, IRQn_Type IRQn, uint8_t num, FunctionalState NewState){
-  if(num > 3)  return ;
-
-  if (NewState != DISABLE)
-  {
-      NVIC->VTFIDR[num] = IRQn;
-      NVIC->VTFADDR[num] = ((addr&0xFFFFFFFE)|0x1);
-  }
-  else{
-      NVIC->VTFIDR[num] = IRQn;
-      NVIC->VTFADDR[num] = ((addr&0xFFFFFFFE)&(~0x1));
-  }
-}
-
-/*********************************************************************
- * @fn      NVIC_SystemReset
- *
- * @brief   Initiate a system reset request
- *
- * @return  none
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_SystemReset(void)
-{
-  NVIC->CFGR = NVIC_KEY3|(1<<7);
-}
-
-/*********************************************************************
- * @fn      __AMOADD_W
- *
- * @brief   Atomic Add with 32bit value
- *          Atomically ADD 32bit value with value in memory using amoadd.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be ADDed
- *
- * @return  return memory value + add value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOADD_W(volatile int32_t *addr, int32_t value)
-{
-    int32_t result;
-
-    __asm volatile ("amoadd.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/*********************************************************************
- * @fn      __AMOAND_W
- *
- * @brief   Atomic And with 32bit value
- *          Atomically AND 32bit value with value in memory using amoand.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be ANDed
- *
- * @return  return memory value & and value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOAND_W(volatile int32_t *addr, int32_t value)
-{
-    int32_t result;
-
-    __asm volatile ("amoand.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/*********************************************************************
- * @fn      __AMOMAX_W
- *
- * @brief   Atomic signed MAX with 32bit value
- *          Atomically signed max compare 32bit value with value in memory using amomax.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be compared
- *
- * @return  the bigger value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOMAX_W(volatile int32_t *addr, int32_t value)
-{
-    int32_t result;
-
-    __asm volatile ("amomax.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/*********************************************************************
- * @fn      __AMOMAXU_W
- *
- * @brief   Atomic unsigned MAX with 32bit value
- *          Atomically unsigned max compare 32bit value with value in memory using amomaxu.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be compared
- *
- * @return  return the bigger value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t __AMOMAXU_W(volatile uint32_t *addr, uint32_t value)
-{
-    uint32_t result;
-
-    __asm volatile ("amomaxu.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/*********************************************************************
- * @fn      __AMOMIN_W
- *
- * @brief   Atomic signed MIN with 32bit value
- *          Atomically signed min compare 32bit value with value in memory using amomin.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be compared
- *
- * @return  the smaller value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOMIN_W(volatile int32_t *addr, int32_t value)
-{
-    int32_t result;
-
-    __asm volatile ("amomin.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/*********************************************************************
- * @fn      __AMOMINU_W
- *
- * @brief   Atomic unsigned MIN with 32bit value
- *          Atomically unsigned min compare 32bit value with value in memory using amominu.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be compared
- *
- * @return  the smaller value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t __AMOMINU_W(volatile uint32_t *addr, uint32_t value)
-{
-    uint32_t result;
-
-    __asm volatile ("amominu.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/*********************************************************************
- * @fn      __AMOOR_W
- *
- * @brief   Atomic OR with 32bit value
- *          Atomically OR 32bit value with value in memory using amoor.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be ORed
- *
- * @return  return memory value | and value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOOR_W(volatile int32_t *addr, int32_t value)
-{
-    int32_t result;
-
-    __asm volatile ("amoor.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/*********************************************************************
- * @fn      __AMOSWAP_W
- *
- * @brief   Atomically swap new 32bit value into memory using amoswap.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          newval - New value to be stored into the address
- *
- * @return  return the original value in memory
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t __AMOSWAP_W(volatile uint32_t *addr, uint32_t newval)
-{
-    uint32_t result;
-
-    __asm volatile ("amoswap.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(newval) : "memory");
-    return result;
-}
-
-/*********************************************************************
- * @fn      __AMOXOR_W
- *
- * @brief   Atomic XOR with 32bit value
- *          Atomically XOR 32bit value with value in memory using amoxor.d.
- *
- * @param   addr - Address pointer to data, address need to be 4byte aligned
- *          value - value to be XORed
- *
- * @return  return memory value ^ and value
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOXOR_W(volatile int32_t *addr, int32_t value)
-{
-    int32_t result;
-
-    __asm volatile ("amoxor.w %0, %2, %1" : \
-            "=r"(result), "+A"(*addr) : "r"(value) : "memory");
-    return *addr;
-}
-
-/* Core_Exported_Functions */
-extern uint32_t __get_MSTATUS(void);
-extern void __set_MSTATUS(uint32_t value);
-extern uint32_t __get_MISA(void);
-extern void __set_MISA(uint32_t value);
-extern uint32_t __get_MTVEC(void);
-extern void __set_MTVEC(uint32_t value);
-extern uint32_t __get_MSCRATCH(void);
-extern void __set_MSCRATCH(uint32_t value);
-extern uint32_t __get_MEPC(void);
-extern void __set_MEPC(uint32_t value);
-extern uint32_t __get_MCAUSE(void);
-extern void __set_MCAUSE(uint32_t value);
-extern uint32_t __get_MTVAL(void);
-extern void __set_MTVAL(uint32_t value);
-extern uint32_t __get_MVENDORID(void);
-extern uint32_t __get_MARCHID(void);
-extern uint32_t __get_MIMPID(void);
-extern uint32_t __get_MHARTID(void);
-extern uint32_t __get_SP(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
--- a/hw/bsp/ch32v20x/family.c
+++ b/hw/bsp/ch32v20x/family.c
@ -1,6 +1,18 @@
 #include <stdio.h>
+
+// https://github.com/openwch/ch32v307/pull/90
+// https://github.com/openwch/ch32v20x/pull/12
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#endif
+
 #include "ch32v20x.h"

+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
 #include "bsp/board_api.h"
 #include "board.h"

@ -50,7 +62,6 @@ void USBWakeUp_IRQHandler(void) {


 #if CFG_TUSB_OS == OPT_OS_NONE
-
 volatile uint32_t system_ticks = 0;

 __attribute__((interrupt))
@ -72,7 +83,6 @@ uint32_t SysTick_Config(uint32_t ticks) {
 uint32_t board_millis(void) {
  return system_ticks;
 }
-
 #endif

 void board_init(void) {
@ -84,28 +94,17 @@ void board_init(void) {

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

-  uint8_t usb_div;
-  switch (SystemCoreClock) {
-    case 48000000: usb_div = RCC_USBCLKSource_PLLCLK_Div1; break;
-    case 96000000: usb_div = RCC_USBCLKSource_PLLCLK_Div2; break;
-    case 144000000: usb_div = RCC_USBCLKSource_PLLCLK_Div3; break;
-    default: TU_ASSERT(0,); break;
-  }
-  RCC_USBCLKConfig(usb_div);
-  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);  // FSDEV
-  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE); // USB FS
-
  GPIO_InitTypeDef GPIO_InitStructure = {
    .GPIO_Pin = LED_PIN,
    .GPIO_Mode = GPIO_Mode_Out_OD,
-    .GPIO_Speed = GPIO_Speed_50MHz,
+    .GPIO_Speed = GPIO_Speed_10MHz,
  };
  GPIO_Init(LED_PORT, &GPIO_InitStructure);

-  // UART TX is PA9
-  RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
+#ifdef UART_DEV
+  UART_CLOCK_EN();
  GPIO_InitTypeDef usart_init = {
-    .GPIO_Pin = GPIO_Pin_9,
+    .GPIO_Pin = UART_TX_PIN,
    .GPIO_Speed = GPIO_Speed_50MHz,
    .GPIO_Mode = GPIO_Mode_AF_PP,
  };
@ -119,15 +118,55 @@ void board_init(void) {
    .USART_Mode = USART_Mode_Tx,
    .USART_HardwareFlowControl = USART_HardwareFlowControl_None,
  };
-  USART_Init(USART1, &usart);
-  USART_Cmd(USART1, ENABLE);
+  USART_Init(UART_DEV, &usart);
+  USART_Cmd(UART_DEV, ENABLE);
+#endif
+
+  // USB init
+  uint8_t usb_div;
+  switch (SystemCoreClock) {
+    case 48000000: usb_div = RCC_USBCLKSource_PLLCLK_Div1; break;
+    case 96000000: usb_div = RCC_USBCLKSource_PLLCLK_Div2; break;
+    case 144000000: usb_div = RCC_USBCLKSource_PLLCLK_Div3; break;
+    default: TU_ASSERT(0,); break;
+  }
+  RCC_USBCLKConfig(usb_div);
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);  // FSDEV
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE); // USB FS

  __enable_irq();
-  board_delay(2);
+}
+
+void board_reset_to_bootloader(void) {
+//   board_led_write(true);
+//
+//   __disable_irq();
+//
+// #if CFG_TUD_ENABLED
+//   tud_deinit(0);
+//   RCC_APB1PeriphResetCmd(RCC_APB1Periph_USB, ENABLE);
+//   RCC_APB1PeriphResetCmd(RCC_APB1Periph_USB, DISABLE);
+// #endif
+//
+//   SysTick->CTLR = 0;
+//   for (int i = WWDG_IRQn; i< DMA1_Channel8_IRQn; i++) {
+//     NVIC_DisableIRQ(i);
+//   }
+//
+//   __enable_irq();
+//
+//   // define function pointer to BOOT ROM address
+//   void (*bootloader_entry)(void) = (void (*)(void))0x1FFF8000;
+//
+//   bootloader_entry();
+//
+//   board_led_write(false);
+
+  // while(1) { }
 }

 void board_led_write(bool state) {
-  GPIO_WriteBit(LED_PORT, LED_PIN, state);
+  GPIO_WriteBit(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
 }

 uint32_t board_button_read(void) {
@ -141,11 +180,19 @@ int board_uart_read(uint8_t *buf, int len) {
 }

 int board_uart_write(void const *buf, int len) {
+#ifdef UART_DEV
  const char *bufc = (const char *) buf;
  for (int i = 0; i < len; i++) {
-    while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
-    USART_SendData(USART1, *bufc++);
+    while (USART_GetFlagStatus(UART_DEV, USART_FLAG_TC) == RESET);
+    USART_SendData(UART_DEV, *bufc++);
  }
+#else
+  (void) buf; (void) len;
+#endif

  return len;
 }
+
+//--------------------------------------------------------------------
+// Neopixel
+//--------------------------------------------------------------------
--- a/hw/bsp/ch32v20x/family.cmake
+++ b/hw/bsp/ch32v20x/family.cmake
@ -1,5 +1,6 @@
 include_guard()

+set(UF2_FAMILY_ID 0x699b62ec)
 set(CH32_FAMILY ch32v20x)
 set(SDK_DIR ${TOP}/hw/mcu/wch/${CH32_FAMILY})
 set(SDK_SRC_DIR ${SDK_DIR}/EVT/EXAM/SRC)
@ -40,6 +41,7 @@ function(add_board_target BOARD_TARGET)

  add_library(${BOARD_TARGET} STATIC
    ${SDK_SRC_DIR}/Core/core_riscv.c
+    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_flash.c
    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_gpio.c
    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_misc.c
    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_rcc.c
@ -48,6 +50,7 @@ function(add_board_target BOARD_TARGET)
    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
    )
  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${SDK_SRC_DIR}/Core
    ${SDK_SRC_DIR}/Peripheral/inc
    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
    )
@ -69,19 +72,25 @@ function(add_board_target BOARD_TARGET)

  update_board(${BOARD_TARGET})

+  if (LD_FLASH_SIZE STREQUAL 224K)
+    target_compile_definitions(${BOARD_TARGET} PUBLIC
+      CH32_FLASH_ENHANCE_READ_MODE=1
+      )
+  endif()
+
  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
    target_compile_options(${BOARD_TARGET} PUBLIC
      -mcmodel=medany
      )
    target_link_options(${BOARD_TARGET} PUBLIC
-      "LINKER:--script=${LD_FILE_GNU}"
-      -Wl,--defsym=__flash_size=${LD_FLASH_SIZE}
-      -Wl,--defsym=__ram_size=${LD_RAM_SIZE}
      -nostartfiles
      --specs=nosys.specs --specs=nano.specs
+      -Wl,--defsym=__FLASH_SIZE=${LD_FLASH_SIZE}
+      -Wl,--defsym=__RAM_SIZE=${LD_RAM_SIZE}
+      "LINKER:--script=${LD_FILE_GNU}"
      )
  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
-    message(FATAL_ERROR "Clang is not supported for MSP432E4")
+    message(FATAL_ERROR "Clang is not supported for CH32v")
  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
    target_link_options(${BOARD_TARGET} PUBLIC
      "LINKER:--config=${LD_FILE_IAR}"
@ -128,4 +137,8 @@ function(family_configure_example TARGET RTOS)
  # Flashing
  family_add_bin_hex(${TARGET})
  family_flash_openocd_wch(${TARGET})
+  family_flash_wlink_rs(${TARGET})
+
+  #family_add_uf2(${TARGET} ${UF2_FAMILY_ID})
+  #family_flash_uf2(${TARGET} ${UF2_FAMILY_ID})
 endfunction()
--- a/hw/bsp/ch32v20x/family.mk
+++ b/hw/bsp/ch32v20x/family.mk
@ -24,6 +24,9 @@ CFLAGS += \
 	-DCH32V20x_${MCU_VARIANT} \
 	-DCFG_TUSB_MCU=OPT_MCU_CH32V20X

+# https://github.com/openwch/ch32v20x/pull/12
+CFLAGS += -Wno-error=strict-prototypes
+
 ifeq ($(PORT),0)
  $(info "Using FSDEV driver")
  CFLAGS += -DCFG_TUD_WCH_USBIP_FSDEV=1
@ -42,18 +45,20 @@ SRC_C += \
 	src/portable/wch/dcd_ch32_usbfs.c \
 	src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c \
 	$(SDK_SRC_DIR)/Core/core_riscv.c \
-	$(SDK_SRC_DIR)/Peripheral/src/ch32v20x_gpio.c \
-	$(SDK_SRC_DIR)/Peripheral/src/ch32v20x_misc.c \
-	$(SDK_SRC_DIR)/Peripheral/src/ch32v20x_rcc.c \
-	$(SDK_SRC_DIR)/Peripheral/src/ch32v20x_usart.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_gpio.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_misc.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_rcc.c \
+	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_usart.c \

-SRC_S += $(SDK_SRC_DIR)/Startup/startup_ch32v20x_${MCU_VARIANT}.S
+SRC_S += $(SDK_SRC_DIR)/Startup/startup_${CH32_FAMILY}_${MCU_VARIANT}.S

 INC += \
 	$(TOP)/$(BOARD_PATH) \
+	$(TOP)/$(SDK_SRC_DIR)/Core \
 	$(TOP)/$(SDK_SRC_DIR)/Peripheral/inc \

 FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/RISC-V

 OPENOCD_WCH_OPTION=-f $(TOP)/$(FAMILY_PATH)/wch-riscv.cfg
-flash: flash-openocd-wch
+flash: flash-wlink-rs
+#flash: flash-openocd-wch
--- a/hw/bsp/ch32v20x/linker/ch32v20x.ld
+++ b/hw/bsp/ch32v20x/linker/ch32v20x.ld
@ -1,17 +1,16 @@
 /* Define default values if not already defined */
-__FLASH_SIZE = DEFINED(__flash_size) ? __flash_size : 64K;
-__RAM_SIZE = DEFINED(__ram_size) ? __ram_size : 20K;
+__flash_size = DEFINED(__FLASH_SIZE) ? __FLASH_SIZE : 64K;
+__ram_size = DEFINED(__RAM_SIZE) ? __RAM_SIZE : 20K;
+__stack_size = DEFINED(__STACK_SIZE) ? __STACK_SIZE : 2048;

 MEMORY
 {
-	FLASH (rx) : ORIGIN = 0x00000000, LENGTH = __FLASH_SIZE
-	RAM (xrw) : ORIGIN = 0x20000000, LENGTH = __RAM_SIZE
+	FLASH (rx) : ORIGIN = 0x00000000, LENGTH = __flash_size
+	RAM (xrw) : ORIGIN = 0x20000000, LENGTH = __ram_size
 }

 ENTRY( _start )

-__stack_size = 2048;
-
 PROVIDE( _stack_size = __stack_size );

 SECTIONS
--- a/hw/bsp/ch32v20x/system_ch32v20x.c
+++ b/hw/bsp/ch32v20x/system_ch32v20x.c
@ -19,12 +19,12 @@
 * If none of the define below is enabled, the HSI is used as System clock source.
 */
 //#define SYSCLK_FREQ_HSE    HSE_VALUE
-//#define SYSCLK_FREQ_48MHz_HSE  48000000
+// #define SYSCLK_FREQ_48MHz_HSE  48000000
 //#define SYSCLK_FREQ_56MHz_HSE  56000000
-//#define SYSCLK_FREQ_72MHz_HSE  72000000
+// #define SYSCLK_FREQ_72MHz_HSE  72000000
 // #define SYSCLK_FREQ_96MHz_HSE  96000000
 //#define SYSCLK_FREQ_120MHz_HSE  120000000
-#define SYSCLK_FREQ_144MHz_HSE  144000000
+//#define SYSCLK_FREQ_144MHz_HSE  144000000
 //#define SYSCLK_FREQ_HSI    HSI_VALUE
 //#define SYSCLK_FREQ_48MHz_HSI  48000000
 //#define SYSCLK_FREQ_56MHz_HSI  56000000
@ -109,6 +109,16 @@ static void SetSysClockTo144_HSI( void );
 */
 void SystemInit (void)
 {
+  // Enable Flash enhance read mode for full 224KB
+#if defined(CH32_FLASH_ENHANCE_READ_MODE) && CH32_FLASH_ENHANCE_READ_MODE == 1
+  FLASH->KEYR = 0x45670123; // FLASH_Unlock_Fast();
+  FLASH->KEYR = 0xCDEF89AB;
+
+  FLASH->CTLR |= (1 << 24); // Enhanced Read Mode
+
+  FLASH->CTLR |= (1 << 15); // FLASH_Lock_Fast();
+#endif
+
  RCC->CTLR |= (uint32_t)0x00000001;
  RCC->CFGR0 &= (uint32_t)0xF8FF0000;
  RCC->CTLR &= (uint32_t)0xFEF6FFFF;
--- a/hw/bsp/ch32v307/core_riscv.h
+++ b/hw/bsp/ch32v307/core_riscv.h
@ -1,379 +0,0 @@
-/********************************** (C) COPYRIGHT  *******************************
-* File Name          : core_riscv.h
-* Author             : WCH
-* Version            : V1.0.0
-* Date               : 2021/06/06
-* Description        : RISC-V Core Peripheral Access Layer Header File for CH32V30x
-* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
-* SPDX-License-Identifier: Apache-2.0
-*******************************************************************************/
-#ifndef __CORE_RISCV_H__
-#define __CORE_RISCV_H__
-
-/* IO definitions */
-#ifdef __cplusplus
-  #define     __I     volatile                /* defines 'read only' permissions */
-#else
-  #define     __I     volatile const          /* defines 'read only' permissions */
-#endif
-#define     __O     volatile                  /* defines 'write only' permissions */
-#define     __IO    volatile                  /* defines 'read / write' permissions */
-
-/* Standard Peripheral Library old types (maintained for legacy purpose) */
-typedef __I uint64_t vuc64;  /* Read Only */
-typedef __I uint32_t vuc32;  /* Read Only */
-typedef __I uint16_t vuc16;  /* Read Only */
-typedef __I uint8_t vuc8;   /* Read Only */
-
-typedef const uint64_t uc64;  /* Read Only */
-typedef const uint32_t uc32;  /* Read Only */
-typedef const uint16_t uc16;  /* Read Only */
-typedef const uint8_t uc8;   /* Read Only */
-
-typedef __I int64_t vsc64;  /* Read Only */
-typedef __I int32_t vsc32;  /* Read Only */
-typedef __I int16_t vsc16;  /* Read Only */
-typedef __I int8_t vsc8;   /* Read Only */
-
-typedef const int64_t sc64;  /* Read Only */
-typedef const int32_t sc32;  /* Read Only */
-typedef const int16_t sc16;  /* Read Only */
-typedef const int8_t sc8;   /* Read Only */
-
-typedef __IO uint64_t  vu64;
-typedef __IO uint32_t  vu32;
-typedef __IO uint16_t vu16;
-typedef __IO uint8_t  vu8;
-
-typedef uint64_t  u64;
-typedef uint32_t  u32;
-typedef uint16_t u16;
-typedef uint8_t  u8;
-
-typedef __IO int64_t  vs64;
-typedef __IO int32_t  vs32;
-typedef __IO int16_t  vs16;
-typedef __IO int8_t   vs8;
-
-typedef int64_t  s64;
-typedef int32_t  s32;
-typedef int16_t s16;
-typedef int8_t  s8;
-
-typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrorStatus;
-
-typedef enum {DISABLE = 0, ENABLE = !DISABLE} FunctionalState;
-
-typedef enum {RESET = 0, SET = !RESET} FlagStatus, ITStatus;
-
-#define   RV_STATIC_INLINE  static  inline
-
-/* memory mapped structure for Program Fast Interrupt Controller (PFIC) */
-typedef struct{
-  __I  uint32_t ISR[8];
-  __I  uint32_t IPR[8];
-  __IO uint32_t ITHRESDR;
-  __IO uint32_t RESERVED;
-  __IO uint32_t CFGR;
-  __I  uint32_t GISR;
-  uint8_t VTFIDR[4];
-  uint8_t RESERVED0[12];
-  __IO uint32_t VTFADDR[4];
-  uint8_t RESERVED1[0x90];
-  __O  uint32_t IENR[8];
-  uint8_t RESERVED2[0x60];
-  __O  uint32_t IRER[8];
-  uint8_t RESERVED3[0x60];
-  __O  uint32_t IPSR[8];
-  uint8_t RESERVED4[0x60];
-  __O  uint32_t IPRR[8];
-  uint8_t RESERVED5[0x60];
-  __IO uint32_t IACTR[8];
-  uint8_t RESERVED6[0xE0];
-  __IO uint8_t IPRIOR[256];
-  uint8_t RESERVED7[0x810];
-  __IO uint32_t SCTLR;
-}PFIC_Type;
-
-/* memory mapped structure for SysTick */
-typedef struct
-{
-    __IO u32 CTLR;
-    __IO u32 SR;
-    __IO u64 CNT;
-    __IO u64 CMP;
-}SysTick_Type;
-
-
-#define PFIC            ((PFIC_Type *) 0xE000E000 )
-#define NVIC            PFIC
-#define NVIC_KEY1       ((uint32_t)0xFA050000)
-#define	NVIC_KEY2				((uint32_t)0xBCAF0000)
-#define	NVIC_KEY3				((uint32_t)0xBEEF0000)
-
-#define SysTick         ((SysTick_Type *) 0xE000F000)
-
-
-/*********************************************************************
- * @fn      __enable_irq
- *
- * @brief   Enable Global Interrupt
- *
- * @return  none
- */
-RV_STATIC_INLINE void __enable_irq(void)
-{
-  __asm volatile ("csrw 0x800, %0" : : "r" (0x6088) );
-}
-
-/*********************************************************************
- * @fn      __disable_irq
- *
- * @brief   Disable Global Interrupt
- *
- * @return  none
- */
-RV_STATIC_INLINE void __disable_irq(void)
-{
-  __asm volatile ("csrw 0x800, %0" : : "r" (0x6000) );
-}
-
-/*********************************************************************
- * @fn      __NOP
- *
- * @brief   nop
- *
- * @return  none
- */
-RV_STATIC_INLINE void __NOP(void)
-{
-  __asm volatile ("nop");
-}
-
-/*********************************************************************
- * @fn      NVIC_EnableIRQ
- *
- * @brief   Enable Interrupt
- *
- * @param   IRQn: Interrupt Numbers
- *
- * @return  none
- */
-RV_STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
-{
-  NVIC->IENR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_DisableIRQ
- *
- * @brief   Disable Interrupt
- *
- * @param   IRQn: Interrupt Numbers
- *
- * @return  none
- */
-RV_STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
-{
-  NVIC->IRER[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_GetStatusIRQ
- *
- * @brief   Get Interrupt Enable State
- *
- * @param   IRQn: Interrupt Numbers
- *
- * @return  1 - Interrupt Enable
- *          0 - Interrupt Disable
- */
-RV_STATIC_INLINE uint32_t NVIC_GetStatusIRQ(IRQn_Type IRQn)
-{
-  return((uint32_t) ((NVIC->ISR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
-}
-
-/*********************************************************************
- * @fn      NVIC_GetPendingIRQ
- *
- * @brief   Get Interrupt Pending State
- *
- * @param   IRQn: Interrupt Numbers
- *
- * @return  1 - Interrupt Pending Enable
- *          0 - Interrupt Pending Disable
- */
-RV_STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
-{
-  return((uint32_t) ((NVIC->IPR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
-}
-
-/*********************************************************************
- * @fn      NVIC_SetPendingIRQ
- *
- * @brief   Set Interrupt Pending
- *
- * @param   IRQn: Interrupt Numbers
- *
- * @return  None
- */
-RV_STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
-{
-  NVIC->IPSR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_ClearPendingIRQ
- *
- * @brief   Clear Interrupt Pending
- *
- * @param   IRQn: Interrupt Numbers
- *
- * @return  None
- */
-RV_STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
-{
-  NVIC->IPRR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
-}
-
-/*********************************************************************
- * @fn      NVIC_GetActive
- *
- * @brief   Get Interrupt Active State
- *
- * @param   IRQn: Interrupt Numbers
- *
- * @return  1 - Interrupt Active
- *          0 - Interrupt No Active
- */
-RV_STATIC_INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn)
-{
-  return((uint32_t)((NVIC->IACTR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
-}
-
-/*********************************************************************
- * @fn      NVIC_SetPriority
- *
- * @brief   Set Interrupt Priority
- *
- * @param   IRQn - Interrupt Numbers
- *          priority -
- *              bit7 - pre-emption priority
- *              bit6~bit4 - subpriority
- * @return  None
- */
-RV_STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint8_t priority)
-{
-  NVIC->IPRIOR[(uint32_t)(IRQn)] = priority;
-}
-
-/*********************************************************************
- * @fn      __WFI
- *
- * @brief   Wait for Interrupt
- *
- * @return  None
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __WFI(void)
-{
-  NVIC->SCTLR &= ~(1<<3);	// wfi
-  asm volatile ("wfi");
-}
-
-/*********************************************************************
- * @fn      __WFE
- *
- * @brief   Wait for Events
- *
- * @return  None
- */
-__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __WFE(void)
-{
-  uint32_t t;
-
-  t = NVIC->SCTLR;
-  NVIC->SCTLR |= (1<<3)|(1<<5);		// (wfi->wfe)+(__sev)
-  NVIC->SCTLR = (NVIC->SCTLR & ~(1<<5)) | ( t & (1<<5));
-  asm volatile ("wfi");
-  asm volatile ("wfi");
-}
-
-/*********************************************************************
- * @fn      SetVTFIRQ
- *
- * @brief   Set VTF Interrupt
- *
- * @param   add - VTF interrupt service function base address.
- *          IRQn -Interrupt Numbers
- *          num - VTF Interrupt Numbers
- *          NewState - DISABLE or ENABLE
- * @return  None
- */
-RV_STATIC_INLINE void SetVTFIRQ(uint32_t addr, IRQn_Type IRQn, uint8_t num, FunctionalState NewState){
-  if(num > 3)  return ;
-
-  if (NewState != DISABLE)
-  {
-      NVIC->VTFIDR[num] = IRQn;
-      NVIC->VTFADDR[num] = ((addr&0xFFFFFFFE)|0x1);
-  }
-  else{
-      NVIC->VTFIDR[num] = IRQn;
-      NVIC->VTFADDR[num] = ((addr&0xFFFFFFFE)&(~0x1));
-  }
-}
-
-/*********************************************************************
- * @fn      NVIC_SystemReset
- *
- * @brief   Initiate a system reset request
- *
- * @return  None
- */
-RV_STATIC_INLINE void NVIC_SystemReset(void)
-{
-  NVIC->CFGR = NVIC_KEY3|(1<<7);
-}
-
-
-/* Core_Exported_Functions */
-extern uint32_t __get_FFLAGS(void);
-extern void __set_FFLAGS(uint32_t value);
-extern uint32_t __get_FRM(void);
-extern void __set_FRM(uint32_t value);
-extern uint32_t __get_FCSR(void);
-extern void __set_FCSR(uint32_t value);
-extern uint32_t __get_MSTATUS(void);
-extern void __set_MSTATUS(uint32_t value);
-extern uint32_t __get_MISA(void);
-extern void __set_MISA(uint32_t value);
-extern uint32_t __get_MIE(void);
-extern void __set_MIE(uint32_t value);
-extern uint32_t __get_MTVEC(void);
-extern void __set_MTVEC(uint32_t value);
-extern uint32_t __get_MSCRATCH(void);
-extern void __set_MSCRATCH(uint32_t value);
-extern uint32_t __get_MEPC(void);
-extern void __set_MEPC(uint32_t value);
-extern uint32_t __get_MCAUSE(void);
-extern void __set_MCAUSE(uint32_t value);
-extern uint32_t __get_MTVAL(void);
-extern void __set_MTVAL(uint32_t value);
-extern uint32_t __get_MIP(void);
-extern void __set_MIP(uint32_t value);
-extern uint32_t __get_MCYCLE(void);
-extern void __set_MCYCLE(uint32_t value);
-extern uint32_t __get_MCYCLEH(void);
-extern void __set_MCYCLEH(uint32_t value);
-extern uint32_t __get_MINSTRET(void);
-extern void __set_MINSTRET(uint32_t value);
-extern uint32_t __get_MINSTRETH(void);
-extern void __set_MINSTRETH(uint32_t value);
-extern uint32_t __get_MVENDORID(void);
-extern uint32_t __get_MARCHID(void);
-extern uint32_t __get_MIMPID(void);
-extern uint32_t __get_MHARTID(void);
-extern uint32_t __get_SP(void);
-
-
-#endif
--- a/hw/bsp/ch32v307/debug_uart.c
+++ b/hw/bsp/ch32v307/debug_uart.c
@ -25,8 +25,17 @@
 */

 #include "debug_uart.h"
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#endif
+
 #include <ch32v30x.h>

+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif

 #define UART_RINGBUFFER_SIZE_TX 128
 #define UART_RINGBUFFER_MASK_TX (UART_RINGBUFFER_SIZE_TX-1)
--- a/hw/bsp/ch32v307/family.c
+++ b/hw/bsp/ch32v307/family.c
@ -25,9 +25,22 @@
 */

 #include "stdio.h"
+
+// https://github.com/openwch/ch32v307/pull/90
+// https://github.com/openwch/ch32v20x/pull/12
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#endif
+
 #include "debug_uart.h"
 #include "ch32v30x.h"

+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
 #include "bsp/board_api.h"
 #include "board.h"

--- a/hw/bsp/ch32v307/family.cmake
+++ b/hw/bsp/ch32v307/family.cmake
@ -49,6 +49,7 @@ function(add_board_target BOARD_TARGET)
    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
    )
  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${SDK_SRC_DIR}/Core
    ${SDK_SRC_DIR}/Peripheral/inc
    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
    )
--- a/hw/bsp/ch32v307/family.mk
+++ b/hw/bsp/ch32v307/family.mk
@ -25,6 +25,9 @@ CFLAGS += \
 	-fsigned-char \
 	-DCFG_TUSB_MCU=OPT_MCU_CH32V307 \

+# https://github.com/openwch/ch32v307/pull/90
+CFLAGS += -Wno-error=strict-prototypes
+
 ifeq ($(SPEED),high)
  $(info "Using USBHS driver for HighSpeed mode")
  CFLAGS += -DCFG_TUD_WCH_USBIP_USBHS=1
@ -51,6 +54,7 @@ SRC_S += \

 INC += \
 	$(TOP)/$(BOARD_PATH) \
+	$(TOP)/$(SDK_SRC_DIR)/Core \
 	$(TOP)/$(SDK_SRC_DIR)/Peripheral/inc

 # For freeRTOS port source
--- a/hw/bsp/da14695_dk_usb/da14695_dk_usb.c
+++ b/hw/bsp/da14695_dk_usb/da14695_dk_usb.c
@ -1,134 +0,0 @@
-/*
- * The MIT License (MIT)
- *
- * Copyright (c) 2020 Jerzy Kasenberg
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * This file is part of the TinyUSB stack.
- */
-
-#include "bsp/board_api.h"
-#include <hal/hal_gpio.h>
-#include <mcu/mcu.h>
-
-//--------------------------------------------------------------------+
-// Forward USB interrupt events to TinyUSB IRQ Handler
-//--------------------------------------------------------------------+
-void USB_IRQHandler(void)
-{
-  tud_int_handler(0);
-}
-
-//--------------------------------------------------------------------+
-// MACRO TYPEDEF CONSTANT ENUM
-//--------------------------------------------------------------------+
-
-#define LED_PIN         33 // P1.1
-#define LED_STATE_ON    1
-#define LED_STATE_OFF   (1-LED_STATE_ON)
-
-#define BUTTON_PIN      6
-
-void UnhandledIRQ(void)
-{
-  CRG_TOP->SYS_CTRL_REG = 0x80;
-  __BKPT(1);
-  while(1);
-}
-
-// DA146xx driver function that must be called whenever VBUS changes.
-extern void tusb_vbus_changed(bool present);
-
-void board_init(void)
-{
-  // LED
-  hal_gpio_init_out(LED_PIN, LED_STATE_ON);
-
-  hal_gpio_init_out(1, 0);
-  hal_gpio_init_out(2, 0);
-  hal_gpio_init_out(3, 0);
-  hal_gpio_init_out(4, 0);
-  hal_gpio_init_out(5, 0);
-
-  // Button
-  hal_gpio_init_in(BUTTON_PIN, HAL_GPIO_PULL_DOWN);
-
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-
-#if CFG_TUD_ENABLED
-  // This board is USB powered there is no need to monitor
-  // VBUS line.  Notify driver that VBUS is present.
-  tusb_vbus_changed(true);
-
-  /* Setup USB IRQ */
-  NVIC_SetPriority(USB_IRQn, 2);
-  NVIC_EnableIRQ(USB_IRQn);
-
-  /* Use PLL96 / 2 clock not HCLK */
-  CRG_TOP->CLK_CTRL_REG &= ~CRG_TOP_CLK_CTRL_REG_USB_CLK_SRC_Msk;
-
-  mcu_gpio_set_pin_function(14, MCU_GPIO_MODE_INPUT, MCU_GPIO_FUNC_USB);
-  mcu_gpio_set_pin_function(15, MCU_GPIO_MODE_INPUT, MCU_GPIO_FUNC_USB);
-#endif
-}
-
-//--------------------------------------------------------------------+
-// Board porting API
-//--------------------------------------------------------------------+
-
-void board_led_write(bool state)
-{
-  hal_gpio_write(LED_PIN, state ? LED_STATE_ON : LED_STATE_OFF);
-}
-
-uint32_t board_button_read(void)
-{
-  // button is active HIGH
-  return hal_gpio_read(BUTTON_PIN);
-}
-
-int board_uart_read(uint8_t* buf, int len)
-{
-  (void)buf;
-  (void)len;
-  return 0;
-}
-
-int board_uart_write(void const * buf, int len)
-{
-  (void)buf;
-  (void)len;
-
-  return 0;
-}
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-volatile uint32_t system_ticks = 0;
-void SysTick_Handler(void)
-{
-  system_ticks++;
-}
-
-uint32_t board_millis(void)
-{
-  return system_ticks;
-}
-#endif
--- a/hw/bsp/da1469x/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/hw/bsp/da1469x/FreeRTOSConfig/FreeRTOSConfig.h
@ -0,0 +1,150 @@
+/*
+ * FreeRTOS Kernel V10.0.0
+ * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * 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. If you wish to use our Amazon
+ * FreeRTOS name, please do so in a fair use way that does not cause confusion.
+ *
+ * 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.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 1 tab == 4 spaces!
+ */
+
+
+#ifndef FREERTOS_CONFIG_H
+#define FREERTOS_CONFIG_H
+
+/*-----------------------------------------------------------
+ * Application specific definitions.
+ *
+ * These definitions should be adjusted for your particular hardware and
+ * application requirements.
+ *
+ * THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
+ * FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
+ *
+ * See http://www.freertos.org/a00110.html.
+ *----------------------------------------------------------*/
+
+// skip if included from IAR assembler
+#ifndef __IASMARM__
+  #include "DA1469xAB.h"
+#endif
+
+/* Cortex M23/M33 port configuration. */
+#define configENABLE_MPU                        0
+#define configENABLE_FPU                        1
+#define configENABLE_TRUSTZONE                  0
+#define configMINIMAL_SECURE_STACK_SIZE         (1024)
+#define configRUN_FREERTOS_SECURE_ONLY          1
+
+#define configUSE_PREEMPTION                    1
+#define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
+#define configCPU_CLOCK_HZ                      SystemCoreClock
+#define configTICK_RATE_HZ                      ( 1000 )
+#define configMAX_PRIORITIES                    ( 5 )
+#define configMINIMAL_STACK_SIZE                ( 128 )
+#define configTOTAL_HEAP_SIZE                   ( configSUPPORT_DYNAMIC_ALLOCATION*4*1024 )
+#define configMAX_TASK_NAME_LEN                 16
+#define configUSE_16_BIT_TICKS                  0
+#define configIDLE_SHOULD_YIELD                 1
+#define configUSE_MUTEXES                       1
+#define configUSE_RECURSIVE_MUTEXES             1
+#define configUSE_COUNTING_SEMAPHORES           1
+#define configQUEUE_REGISTRY_SIZE               4
+#define configUSE_QUEUE_SETS                    0
+#define configUSE_TIME_SLICING                  0
+#define configUSE_NEWLIB_REENTRANT              0
+#define configENABLE_BACKWARD_COMPATIBILITY     1
+#define configSTACK_ALLOCATION_FROM_SEPARATE_HEAP   0
+
+#define configSUPPORT_STATIC_ALLOCATION         1
+#define configSUPPORT_DYNAMIC_ALLOCATION        0
+
+/* Hook function related definitions. */
+#define configUSE_IDLE_HOOK                    0
+#define configUSE_TICK_HOOK                    0
+#define configUSE_MALLOC_FAILED_HOOK           0 // cause nested extern warning
+#define configCHECK_FOR_STACK_OVERFLOW         2
+#define configCHECK_HANDLER_INSTALLATION       0
+
+/* Run time and task stats gathering related definitions. */
+#define configGENERATE_RUN_TIME_STATS          0
+#define configRECORD_STACK_HIGH_ADDRESS        1
+#define configUSE_TRACE_FACILITY               1 // legacy trace
+#define configUSE_STATS_FORMATTING_FUNCTIONS   0
+
+/* Co-routine definitions. */
+#define configUSE_CO_ROUTINES                  0
+#define configMAX_CO_ROUTINE_PRIORITIES        2
+
+/* Software timer related definitions. */
+#define configUSE_TIMERS                       1
+#define configTIMER_TASK_PRIORITY              (configMAX_PRIORITIES-2)
+#define configTIMER_QUEUE_LENGTH               32
+#define configTIMER_TASK_STACK_DEPTH           configMINIMAL_STACK_SIZE
+
+/* Optional functions - most linkers will remove unused functions anyway. */
+#define INCLUDE_vTaskPrioritySet               0
+#define INCLUDE_uxTaskPriorityGet              0
+#define INCLUDE_vTaskDelete                    0
+#define INCLUDE_vTaskSuspend                   1 // required for queue, semaphore, mutex to be blocked indefinitely with portMAX_DELAY
+#define INCLUDE_xResumeFromISR                 0
+#define INCLUDE_vTaskDelayUntil                1
+#define INCLUDE_vTaskDelay                     1
+#define INCLUDE_xTaskGetSchedulerState         0
+#define INCLUDE_xTaskGetCurrentTaskHandle      1
+#define INCLUDE_uxTaskGetStackHighWaterMark    0
+#define INCLUDE_xTaskGetIdleTaskHandle         0
+#define INCLUDE_xTimerGetTimerDaemonTaskHandle 0
+#define INCLUDE_pcTaskGetTaskName              0
+#define INCLUDE_eTaskGetState                  0
+#define INCLUDE_xEventGroupSetBitFromISR       0
+#define INCLUDE_xTimerPendFunctionCall         0
+
+/* FreeRTOS hooks to NVIC vectors */
+#define xPortPendSVHandler    PendSV_Handler
+#define xPortSysTickHandler   SysTick_Handler
+#define vPortSVCHandler       SVC_Handler
+
+//--------------------------------------------------------------------+
+// Interrupt nesting behavior configuration.
+//--------------------------------------------------------------------+
+
+// For Cortex-M specific: __NVIC_PRIO_BITS is defined in mcu header
+#define configPRIO_BITS       4
+
+/* The lowest interrupt priority that can be used in a call to a "set priority" function. */
+#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY			  ((1<<configPRIO_BITS) - 1)
+
+/* The highest interrupt priority that can be used by any interrupt service
+routine that makes calls to interrupt safe FreeRTOS API functions.  DO NOT CALL
+INTERRUPT SAFE FREERTOS API FUNCTIONS FROM ANY INTERRUPT THAT HAS A HIGHER
+PRIORITY THAN THIS! (higher priorities are lower numeric values. */
+#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY	2
+
+/* Interrupt priorities used by the kernel port layer itself.  These are generic
+to all Cortex-M ports, and do not rely on any particular library functions. */
+#define configKERNEL_INTERRUPT_PRIORITY 		          ( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
+
+/* !!!! configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to zero !!!!
+See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html. */
+#define configMAX_SYSCALL_INTERRUPT_PRIORITY 	        ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
+
+#endif
--- a/hw/bsp/da1469x/boards/da14695_dk_usb/board.cmake
+++ b/hw/bsp/da1469x/boards/da14695_dk_usb/board.cmake
@ -0,0 +1,4 @@
+set(JLINK_DEVICE DA14695)
+
+function(update_board TARGET)
+endfunction()
--- a/hw/bsp/da1469x/boards/da14695_dk_usb/board.h
+++ b/hw/bsp/da1469x/boards/da14695_dk_usb/board.h
@ -0,0 +1,10 @@
+#ifndef BOARD_H
+#define BOARD_H
+
+#define LED_PIN         33 // P1.1
+#define LED_STATE_ON    1
+
+#define BUTTON_PIN      6
+#define BUTTON_STATE_ACTIVE 1
+
+#endif
--- a/hw/bsp/da1469x/boards/da14695_dk_usb/board.mk
+++ b/hw/bsp/da1469x/boards/da14695_dk_usb/board.mk
@ -0,0 +1 @@
+JLINK_DEVICE = DA14695
--- a/hw/bsp/da1469x/boards/da14695_dk_usb/syscfg/syscfg.h
+++ b/hw/bsp/da1469x/boards/da14695_dk_usb/syscfg/syscfg.h
--- a/hw/bsp/da1469x/boards/da1469x_dk_pro/board.cmake
+++ b/hw/bsp/da1469x/boards/da1469x_dk_pro/board.cmake
@ -0,0 +1,4 @@
+set(JLINK_DEVICE DA14699)
+
+function(update_board TARGET)
+endfunction()
--- a/hw/bsp/da1469x/boards/da1469x_dk_pro/board.h
+++ b/hw/bsp/da1469x/boards/da1469x_dk_pro/board.h
@ -0,0 +1,12 @@
+#ifndef BOARD_H
+#define BOARD_H
+
+#define LED_PIN         33
+#define LED_STATE_ON    1
+
+#define BUTTON_PIN      6
+#define BUTTON_STATE_ACTIVE 0
+
+#define NEED_VBUS_MONITOR
+
+#endif
--- a/hw/bsp/da1469x/boards/da1469x_dk_pro/board.mk
+++ b/hw/bsp/da1469x/boards/da1469x_dk_pro/board.mk
@ -0,0 +1,2 @@
+# For flash-jlink target
+JLINK_DEVICE = DA14699
--- a/hw/bsp/da1469x/boards/da1469x_dk_pro/syscfg/syscfg.h
+++ b/hw/bsp/da1469x/boards/da1469x_dk_pro/syscfg/syscfg.h
--- a/hw/bsp/da1469x_dk_pro/da1469x-dk-pro.c
+++ b/hw/bsp/da1469x_dk_pro/da1469x-dk-pro.c
@ -25,24 +25,25 @@
 */

 #include "bsp/board_api.h"
+#include "board.h"
 #include <hal/hal_gpio.h>
 #include <mcu/mcu.h>

+#define LED_STATE_OFF   (1-LED_STATE_ON)
+
 //--------------------------------------------------------------------+
 // Forward USB interrupt events to TinyUSB IRQ Handler
 //--------------------------------------------------------------------+
-void USB_IRQHandler(void)
-{
+void USB_IRQHandler(void) {
  tud_int_handler(0);
 }

-#if CFG_TUD_ENABLED
-// DA146xx driver function that must be called whenever VBUS changes
+// DA146xx driver function that must be called whenever VBUS changes.
 extern void tusb_vbus_changed(bool present);

+#if defined(NEED_VBUS_MONITOR) && CFG_TUD_ENABLED
 // VBUS change interrupt handler
-void VBUS_IRQHandler(void)
-{
+void VBUS_IRQHandler(void) {
  bool present = (CRG_TOP->ANA_STATUS_REG & CRG_TOP_ANA_STATUS_REG_VBUS_AVAILABLE_Msk) != 0;
  // Clear VBUS interrupt
  CRG_TOP->VBUS_IRQ_CLEAR_REG = 1;
@ -54,22 +55,13 @@ void VBUS_IRQHandler(void)
 //--------------------------------------------------------------------+
 // MACRO TYPEDEF CONSTANT ENUM
 //--------------------------------------------------------------------+
-
-#define LED_PIN         33
-#define LED_STATE_ON    1
-#define LED_STATE_OFF   0
-
-#define BUTTON_PIN      6
-
-void UnhandledIRQ(void)
-{
+void UnhandledIRQ(void) {
  CRG_TOP->SYS_CTRL_REG = 0x80;
  __BKPT(1);
-  while(1);
+  while (1);
 }

-void board_init(void)
-{
+void board_init(void) {
  // LED
  hal_gpio_init_out(LED_PIN, LED_STATE_ON);

@ -80,12 +72,13 @@ void board_init(void)
  hal_gpio_init_out(5, 0);

  // Button
-  hal_gpio_init_in(BUTTON_PIN, HAL_GPIO_PULL_UP);
+  hal_gpio_init_in(BUTTON_PIN, BUTTON_STATE_ACTIVE ? HAL_GPIO_PULL_DOWN : HAL_GPIO_PULL_UP);

  // 1ms tick timer
  SysTick_Config(SystemCoreClock / 1000);

 #if CFG_TUD_ENABLED
+  #ifdef NEED_VBUS_MONITOR
  // Setup interrupt for both connect and disconnect
  CRG_TOP->VBUS_IRQ_MASK_REG = CRG_TOP_VBUS_IRQ_MASK_REG_VBUS_IRQ_EN_FALL_Msk |
                               CRG_TOP_VBUS_IRQ_MASK_REG_VBUS_IRQ_EN_RISE_Msk;
@ -94,6 +87,10 @@ void board_init(void)
  // otherwise it could go unnoticed.
  NVIC_SetPendingIRQ(VBUS_IRQn);
  NVIC_EnableIRQ(VBUS_IRQn);
+  #else
+  // This board is USB powered there is no need to monitor VBUS line.  Notify driver that VBUS is present.
+  tusb_vbus_changed(true);
+  #endif

  /* Setup USB IRQ */
  NVIC_SetPriority(USB_IRQn, 2);
@ -111,41 +108,35 @@ void board_init(void)
 // Board porting API
 //--------------------------------------------------------------------+

-void board_led_write(bool state)
-{
+void board_led_write(bool state) {
  hal_gpio_write(LED_PIN, state ? LED_STATE_ON : LED_STATE_OFF);
 }

-uint32_t board_button_read(void)
-{
-  // button is active LOW
-  return hal_gpio_read(BUTTON_PIN) ^ 1;
+uint32_t board_button_read(void) {
+  return BUTTON_STATE_ACTIVE == hal_gpio_read(BUTTON_PIN);
 }

-int board_uart_read(uint8_t* buf, int len)
-{
-  (void)buf;
-  (void)len;
+int board_uart_read(uint8_t* buf, int len) {
+  (void) buf;
+  (void) len;
  return 0;
 }

-int board_uart_write(void const * buf, int len)
-{
-  (void)buf;
-  (void)len;
+int board_uart_write(void const* buf, int len) {
+  (void) buf;
+  (void) len;

  return 0;
 }

 #if CFG_TUSB_OS == OPT_OS_NONE
 volatile uint32_t system_ticks = 0;
-void SysTick_Handler(void)
-{
+
+void SysTick_Handler(void) {
  system_ticks++;
 }

-uint32_t board_millis(void)
-{
+uint32_t board_millis(void) {
  return system_ticks;
 }
 #endif
--- a/hw/bsp/da1469x/family.cmake
+++ b/hw/bsp/da1469x/family.cmake
@ -0,0 +1,141 @@
+include_guard()
+
+set(MCU_DIR ${TOP}/hw/mcu/dialog/da1469x)
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+set(CMAKE_SYSTEM_PROCESSOR cortex-m33-nodsp CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(FAMILY_MCUS DA1469X CACHE INTERNAL "")
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+function(add_board_target BOARD_TARGET)
+  if (TARGET ${BOARD_TARGET})
+    return()
+  endif ()
+
+  if (NOT DEFINED LD_FILE_GNU)
+    set(LD_FILE_GNU ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/linker/da1469x.ld)
+  endif ()
+
+  if (NOT DEFINED STARTUP_FILE_${CMAKE_C_COMPILER_ID})
+    set(STARTUP_FILE_GNU ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/gcc_startup_da1469x.S)
+    set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
+  endif ()
+
+  add_library(${BOARD_TARGET} STATIC
+    ${MCU_DIR}/src/system_da1469x.c
+    ${MCU_DIR}/src/da1469x_clock.c
+    ${MCU_DIR}/src/hal_gpio.c
+    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
+    )
+  target_compile_options(${BOARD_TARGET} PUBLIC -mthumb-interwork)
+  target_compile_definitions(${BOARD_TARGET} PUBLIC
+    CORE_M33
+    CFG_TUD_ENDPOINT0_SIZE=8
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    ${MCU_DIR}/include
+    ${MCU_DIR}/SDK_10.0.8.105/sdk/bsp/include
+    )
+
+  update_board(${BOARD_TARGET})
+
+  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -L${NRFX_DIR}/mdk
+      --specs=nosys.specs --specs=nano.specs
+      -nostartfiles
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -L${NRFX_DIR}/mdk
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_IAR}"
+      )
+  endif ()
+endfunction()
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+
+function(family_flash_jlink_dialog TARGET)
+  set(JLINKEXE JLinkExe)
+  set(JLINK_IF swd)
+
+  # mkimage from sdk
+  set(MKIMAGE $ENV{HOME}/code/tinyusb-mcu-driver/dialog/SDK_10.0.8.105/binaries/mkimage)
+
+  file(GENERATE OUTPUT $<TARGET_FILE_DIR:${TARGET}>/version.h
+    CONTENT "#define SW_VERSION \"v_1.0.0.1\"
+#define SW_VERSION_DATE \"2024-07-17 17:55\""
+    )
+
+  file(GENERATE OUTPUT $<TARGET_FILE_DIR:${TARGET}>/${TARGET}.jlink
+    CONTENT "r
+halt
+loadfile $<TARGET_FILE_DIR:${TARGET}>/${TARGET}-image.bin 0x16000000
+r
+go
+exit"
+  )
+
+  add_custom_target(${TARGET}-image
+    DEPENDS ${TARGET}
+    COMMAND ${MKIMAGE} da1469x $<TARGET_FILE_DIR:${TARGET}>/${TARGET}.bin $<TARGET_FILE_DIR:${TARGET}>/version.h $<TARGET_FILE_DIR:${TARGET}>/${TARGET}.bin.img
+    COMMAND cp ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/product_header.dump $<TARGET_FILE_DIR:${TARGET}>/${TARGET}-image.bin
+    COMMAND cat $<TARGET_FILE_DIR:${TARGET}>/${TARGET}.bin.img >> $<TARGET_FILE_DIR:${TARGET}>/${TARGET}-image.bin
+    )
+  add_custom_target(${TARGET}-jlink
+    DEPENDS ${TARGET}-image
+    COMMAND ${JLINKEXE} -device ${JLINK_DEVICE} -if ${JLINK_IF} -JTAGConf -1,-1 -speed auto -CommandFile $<TARGET_FILE_DIR:${TARGET}>/${TARGET}.jlink
+    )
+endfunction()
+
+
+function(family_configure_example TARGET RTOS)
+  family_configure_common(${TARGET} ${RTOS})
+
+  # Board target
+  add_board_target(board_${BOARD})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  # Add TinyUSB target and port source
+  family_add_tinyusb(${TARGET} OPT_MCU_DA1469X ${RTOS})
+  target_sources(${TARGET}-tinyusb PUBLIC
+    ${TOP}/src/portable/dialog/da146xx/dcd_da146xx.c
+    )
+  target_link_libraries(${TARGET}-tinyusb PUBLIC board_${BOARD})
+
+  # Link dependencies
+  target_link_libraries(${TARGET} PUBLIC board_${BOARD} ${TARGET}-tinyusb)
+
+  # Flashing
+  family_add_bin_hex(${TARGET})
+  family_flash_jlink_dialog(${TARGET})
+endfunction()
--- a/hw/bsp/da14695_dk_usb/board.mk
+++ b/hw/bsp/da14695_dk_usb/board.mk
@ -1,4 +1,6 @@
-MCU_FAMILY_DIR = hw/mcu/dialog/da1469x
+MCU_DIR = hw/mcu/dialog/da1469x
+
+include $(TOP)/$(BOARD_PATH)/board.mk

 CFLAGS += \
  -flto \
@ -8,48 +10,52 @@ CFLAGS += \
  -mcpu=cortex-m33+nodsp \
  -mfloat-abi=hard \
  -mfpu=fpv5-sp-d16 \
-  -nostdlib \
  -DCORE_M33 \
  -DCFG_TUSB_MCU=OPT_MCU_DA1469X \
  -DCFG_TUD_ENDPOINT0_SIZE=8\

-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += \
+  -nostdlib \
+  --specs=nosys.specs --specs=nano.specs

 # All source paths should be relative to the top level.
-LD_FILE = hw/bsp/$(BOARD)/da1469x.ld
+LD_FILE = $(FAMILY_PATH)/linker/da1469x.ld

 # While this is for da1469x chip, there is chance that da1468x chip family will also work
 SRC_C += \
 	src/portable/dialog/da146xx/dcd_da146xx.c \
-	$(MCU_FAMILY_DIR)/src/system_da1469x.c \
-	$(MCU_FAMILY_DIR)/src/da1469x_clock.c \
-	$(MCU_FAMILY_DIR)/src/hal_gpio.c \
+	${MCU_DIR}/src/system_da1469x.c \
+	${MCU_DIR}/src/da1469x_clock.c \
+	${MCU_DIR}/src/hal_gpio.c \

-SRC_S += hw/bsp/$(BOARD)/gcc_startup_da1469x.S
+SRC_S += $(FAMILY_PATH)/gcc_startup_da1469x.S

 INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
-	$(TOP)/$(MCU_FAMILY_DIR)/include \
-	$(TOP)/$(MCU_FAMILY_DIR)/SDK_10.0.8.105/sdk/bsp/include
+	$(TOP)/$(BOARD_PATH) \
+	$(TOP)/${MCU_DIR}/include \
+	$(TOP)/${MCU_DIR}/SDK_10.0.8.105/sdk/bsp/include

 # For freeRTOS port source
 FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM33_NTZ/non_secure

-# For flash-jlink target
-JLINK_DEVICE = DA14695
-
 # flash using jlink but with some twists
 flash: flash-dialog

-flash-dialog: $(BUILD)/$(PROJECT).bin
+# SDK_BINARY_PATH is the path to the SDK binary files
+SDK_BINARY_PATH = $(HOME)/code/tinyusb-mcu-driver/dialog/SDK_10.0.8.105/binaries
+MKIMAGE = $(SDK_BINARY_PATH)/mkimage
+
+$(BUILD)/$(PROJECT)-image.bin: $(BUILD)/$(PROJECT).bin
 	@echo '#define SW_VERSION "v_1.0.0.1"' >$(BUILD)/version.h
-	@echo '#define SW_VERSION_DATE "'`date +"%Y-%m-%d %H:%M"`'"' >>$(BUILD)/version.h
-	mkimage da1469x $(BUILD)/$(PROJECT).bin $(BUILD)/version.h $^.img
-	cp $(TOP)/hw/bsp/$(BOARD)/product_header.dump $(BUILD)/$(BOARD)-image.bin
-	cat $^.img >> $(BUILD)/$(BOARD)-image.bin
+	@echo '#define SW_VERSION_DATE "'`date +"%Y-%m-%d %H:%M"`'"' >> $(BUILD)/version.h
+	$(MKIMAGE) da1469x $^ $(BUILD)/version.h $^.img
+	cp $(TOP)/$(FAMILY_PATH)/product_header.dump $(BUILD)/$(PROJECT)-image.bin
+	cat $^.img >> $(BUILD)/$(PROJECT)-image.bin
+
+flash-dialog: $(BUILD)/$(PROJECT)-image.bin
 	@echo r > $(BUILD)/$(BOARD).jlink
 	@echo halt >> $(BUILD)/$(BOARD).jlink
-	@echo loadfile $(BUILD)/$(BOARD)-image.bin 0x16000000 >> $(BUILD)/$(BOARD).jlink
+	@echo loadfile $^ 0x16000000 >> $(BUILD)/$(BOARD).jlink
 	@echo r >> $(BUILD)/$(BOARD).jlink
 	@echo go >> $(BUILD)/$(BOARD).jlink
 	@echo exit >> $(BUILD)/$(BOARD).jlink
--- a/hw/bsp/da14695_dk_usb/gcc_startup_da1469x.S
+++ b/hw/bsp/da14695_dk_usb/gcc_startup_da1469x.S
--- a/hw/bsp/da1469x/linker/da1469x.ld
+++ b/hw/bsp/da1469x/linker/da1469x.ld
--- a/hw/bsp/da14695_dk_usb/product_header.dump
+++ b/hw/bsp/da14695_dk_usb/product_header.dump
--- a/hw/bsp/da1469x_dk_pro/board.mk
+++ b/hw/bsp/da1469x_dk_pro/board.mk
@ -1,56 +0,0 @@
-MCU_FAMILY_DIR = hw/mcu/dialog/da1469x
-
-CFLAGS += \
-  -flto \
-  -mthumb \
-  -mthumb-interwork \
-  -mabi=aapcs \
-  -mcpu=cortex-m33+nodsp \
-  -mfloat-abi=hard \
-  -mfpu=fpv5-sp-d16 \
-  -nostdlib \
-  -DCORE_M33 \
-  -DCFG_TUSB_MCU=OPT_MCU_DA1469X \
-  -DCFG_TUD_ENDPOINT0_SIZE=8\
-
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
-
-# All source paths should be relative to the top level.
-LD_FILE = hw/bsp/$(BOARD)/da1469x.ld
-
-# While this is for da1469x chip, there is chance that da1468x chip family will also work
-SRC_C += \
-	src/portable/dialog/da146xx/dcd_da146xx.c \
-	$(MCU_FAMILY_DIR)/src/system_da1469x.c \
-	$(MCU_FAMILY_DIR)/src/da1469x_clock.c \
-	$(MCU_FAMILY_DIR)/src/hal_gpio.c \
-
-SRC_S += hw/bsp/$(BOARD)/gcc_startup_da1469x.S
-
-INC += \
-	$(TOP)/hw/bsp/$(BOARD) \
-	$(TOP)/$(MCU_FAMILY_DIR)/include \
-	$(TOP)/$(MCU_FAMILY_DIR)/SDK_10.0.8.105/sdk/bsp/include
-
-# For freeRTOS port source
-FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM33_NTZ/non_secure
-
-# For flash-jlink target
-JLINK_DEVICE = DA14699
-
-# flash using jlink but with some twists
-flash: flash-dialog
-
-flash-dialog: $(BUILD)/$(PROJECT).bin
-	@echo '#define SW_VERSION "v_1.0.0.1"' >$(BUILD)/version.h
-	@echo '#define SW_VERSION_DATE "'`date +"%Y-%m-%d %H:%M"`'"' >>$(BUILD)/version.h
-	mkimage da1469x $(BUILD)/$(PROJECT).bin $(BUILD)/version.h $^.img
-	cp $(TOP)/hw/bsp/$(BOARD)/product_header.dump $(BUILD)/$(BOARD)-image.bin
-	cat $^.img >> $(BUILD)/$(BOARD)-image.bin
-	@echo r > $(BUILD)/$(BOARD).jlink
-	@echo halt >> $(BUILD)/$(BOARD).jlink
-	@echo loadfile $(BUILD)/$(BOARD)-image.bin 0x16000000 >> $(BUILD)/$(BOARD).jlink
-	@echo r >> $(BUILD)/$(BOARD).jlink
-	@echo go >> $(BUILD)/$(BOARD).jlink
-	@echo exit >> $(BUILD)/$(BOARD).jlink
-	$(JLINKEXE) -device $(JLINK_DEVICE) -if $(JLINK_IF) -JTAGConf -1,-1 -speed auto -CommandFile $(BUILD)/$(BOARD).jlink
--- a/hw/bsp/da1469x_dk_pro/da1469x.ld
+++ b/hw/bsp/da1469x_dk_pro/da1469x.ld
@ -1,244 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-MEMORY
-{
-    /*
-     * Flash is remapped at 0x0 by 1st stage bootloader, but this is done with
-     * an offset derived from image header thus it is safer to use remapped
-     * address space at 0x0 instead of QSPI_M address space at 0x16000000.
-     * Bootloader partition is 32K, but 9K is currently reserved for product
-     * header (8K) and image header (1K).
-     * First 512 bytes of SYSRAM are remapped at 0x0 and used as ISR vector
-     * (there's no need to reallocate ISR vector) and thus cannot be used by
-     * application.
-     */
-
-    FLASH (r)  : ORIGIN = (0x00000000), LENGTH = (1024 * 1024)
-    RAM (rw)   : ORIGIN = (0x20000000), LENGTH = (512 * 1024)
-}
-
-OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
-
-/* Linker script to place sections and symbol values. Should be used together
- * with other linker script that defines memory regions FLASH and RAM.
- * It references following symbols, which must be defined in code:
- *   Reset_Handler : Entry of reset handler
- *
- * It defines following symbols, which code can use without definition:
- *   __exidx_start
- *   __exidx_end
- *   __etext
- *   __data_start__
- *   __preinit_array_start
- *   __preinit_array_end
- *   __init_array_start
- *   __init_array_end
- *   __fini_array_start
- *   __fini_array_end
- *   __data_end__
- *   __bss_start__
- *   __bss_end__
- *   __HeapBase
- *   __HeapLimit
- *   __StackLimit
- *   __StackTop
- *   __stack
- *   __bssnz_start__
- *   __bssnz_end__
- */
-ENTRY(Reset_Handler)
-
-SECTIONS
-{
-    __text = .;
-
-    .text :
-    {
-        __isr_vector_start = .;
-        KEEP(*(.isr_vector))
-        /* ISR vector shall have exactly 512 bytes */
-        . = __isr_vector_start + 0x200;
-        __isr_vector_end = .;
-
-        *(.text)
-        *(.text.*)
-
-        *(.libcmac.rom)
-
-        KEEP(*(.init))
-        KEEP(*(.fini))
-
-        /* .ctors */
-        *crtbegin.o(.ctors)
-        *crtbegin?.o(.ctors)
-        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
-        *(SORT(.ctors.*))
-        *(.ctors)
-
-        /* .dtors */
-        *crtbegin.o(.dtors)
-        *crtbegin?.o(.dtors)
-        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
-        *(SORT(.dtors.*))
-        *(.dtors)
-
-        *(.rodata*)
-
-        *(.eh_frame*)
-        . = ALIGN(4);
-    } > FLASH
-
-    .ARM.extab :
-    {
-        *(.ARM.extab* .gnu.linkonce.armextab.*)
-        . = ALIGN(4);
-    } > FLASH
-
-    __exidx_start = .;
-    .ARM :
-    {
-        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
-        . = ALIGN(4);
-    } > FLASH
-    __exidx_end = .;
-
-    .intvect :
-    {
-        . = ALIGN(4);
-        __intvect_start__ = .;
-        . = . + (__isr_vector_end - __isr_vector_start);
-        . = ALIGN(4);
-    } > RAM
-
-    .sleep_state (NOLOAD) :
-    {
-        . = ALIGN(4);
-        *(sleep_state)
-    } > RAM
-
-    /* This section will be zeroed by RTT package init */
-    .rtt (NOLOAD):
-    {
-        . = ALIGN(4);
-        *(.rtt)
-        . = ALIGN(4);
-    } > RAM
-
-    __text_ram_addr = LOADADDR(.text_ram);
-
-    .text_ram :
-    {
-        . = ALIGN(4);
-        __text_ram_start__ = .;
-        *(.text_ram*)
-        . = ALIGN(4);
-        __text_ram_end__ = .;
-    } > RAM AT > FLASH
-
-    __etext = LOADADDR(.data);
-
-    .data :
-    {
-        __data_start__ = .;
-        *(vtable)
-        *(.data*)
-
-        . = ALIGN(4);
-        /* preinit data */
-        PROVIDE_HIDDEN (__preinit_array_start = .);
-        *(.preinit_array)
-        PROVIDE_HIDDEN (__preinit_array_end = .);
-
-        . = ALIGN(4);
-        /* init data */
-        PROVIDE_HIDDEN (__init_array_start = .);
-        *(SORT(.init_array.*))
-        *(.init_array)
-        PROVIDE_HIDDEN (__init_array_end = .);
-
-
-        . = ALIGN(4);
-        /* finit data */
-        PROVIDE_HIDDEN (__fini_array_start = .);
-        *(SORT(.fini_array.*))
-        *(.fini_array)
-        PROVIDE_HIDDEN (__fini_array_end = .);
-
-        *(.jcr)
-        . = ALIGN(4);
-        /* All data end */
-        __data_end__ = .;
-    } > RAM AT > FLASH
-
-    .bssnz :
-    {
-        . = ALIGN(4);
-        __bssnz_start__ = .;
-        *(.bss.core.nz*)
-        . = ALIGN(4);
-        __bssnz_end__ = .;
-    } > RAM
-
-    .bss :
-    {
-        . = ALIGN(4);
-        __bss_start__ = .;
-        *(.bss*)
-        *(COMMON)
-        . = ALIGN(4);
-        __bss_end__ = .;
-    } > RAM
-
-    .cmac (NOLOAD) :
-    {
-        . = ALIGN(0x400);
-        *(.libcmac.ram)
-    } > RAM
-
-    /* Heap starts after BSS */
-    . = ALIGN(8);
-    __HeapBase = .;
-
-    /* .stack_dummy section doesn't contains any symbols. It is only
-     * used for linker to calculate size of stack sections, and assign
-     * values to stack symbols later */
-    .stack_dummy (COPY):
-    {
-        *(.stack*)
-    } > RAM
-
-    _ram_start = ORIGIN(RAM);
-
-    /* Set stack top to end of RAM, and stack limit move down by
-     * size of stack_dummy section */
-    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
-    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
-    PROVIDE(__stack = __StackTop);
-
-    /* Top of head is the bottom of the stack */
-    __HeapLimit = __StackLimit;
-    end = __HeapLimit;
-
-    /* Check if data + heap + stack exceeds RAM limit */
-    ASSERT(__HeapBase <= __HeapLimit, "region RAM overflowed with stack")
-
-    /* Check that intvect is at the beginning of RAM */
-    ASSERT(__intvect_start__ == ORIGIN(RAM), "intvect is not at beginning of RAM")
-}
--- a/Show More
+++ b/Show More