Add ch32v2 support

.github/workflows/githubci.yml

@@ -3,9 +3,12 @@ name: Build
 on: [pull_request, push, repository_dispatch]
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+env:
+  ARDUINO_LIBS: "\"Adafruit SPIFlash\" \"Adafruit seesaw Library\" \"Adafruit NeoPixel\" \"Adafruit Circuit Playground\" \"Adafruit InternalFlash\" \"SdFat - Adafruit Fork\" \"SD\" \"MIDI Library\" \"Pico PIO USB\""
+
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
@@ -34,6 +37,9 @@ jobs:
         PRETTYNAME : "Adafruit TinyUSB Library"
       run: bash ci/doxy_gen_and_deploy.sh
 
+  # ---------------------------------------
+  # Main
+  # ---------------------------------------
   build:
     runs-on: ubuntu-latest
     needs: pre-commit
@@ -53,7 +59,8 @@ jobs:
            # SAMD
            - 'metro_m0_tinyusb'
            - 'metro_m4_tinyusb'
-
+           # Ch32v2
+           - 'CH32V20x_EVT'
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
@@ -62,18 +69,22 @@ jobs:
       uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
-         ref: importable-build_platform
          path: ci
 
     - name: pre-install
       run: bash ci/actions_install.sh
 
-    - name: Install Libraries for building examples
-      run: arduino-cli lib install "Adafruit SPIFlash" "MIDI Library" "Adafruit seesaw Library" "Adafruit NeoPixel" "SdFat - Adafruit Fork" "SD" "Adafruit Circuit Playground" "Adafruit InternalFlash" "Pico PIO USB"
+    - name: Install Libraries
+      run: |
+        arduino-cli lib install ${{ env.ARDUINO_LIBS }}
+        arduino-cli lib list
 
     - name: test platforms
       run: python3 ci/build_platform.py ${{ matrix.arduino-platform }}
 
+  # ---------------------------------------
+  # Build ESP32 v2
+  # ---------------------------------------
   build-esp32-v2:
     if: false
     runs-on: ubuntu-latest
@@ -95,7 +106,6 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: adafruit/ci-arduino
-          ref: importable-build_platform
           path: ci
 
       - name: pre-install
@@ -106,7 +116,7 @@ jobs:
           BSP_URLS: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
         run: |
           arduino-cli core install esp32:esp32@${{ matrix.esp32-version }} --additional-urls $BSP_URLS
-          arduino-cli lib install "Adafruit SPIFlash" "MIDI Library" "Adafruit seesaw Library" "Adafruit NeoPixel" "SdFat - Adafruit Fork" "SD" "Adafruit Circuit Playground" "Adafruit InternalFlash" "Pico PIO USB"
+          arduino-cli lib install ${{ env.ARDUINO_LIBS }}
           arduino-cli core list
           arduino-cli lib list
 

examples/CDC/no_serial/no_serial.ino

@@ -23,6 +23,11 @@ int led = LED_BUILTIN;
 
 void setup()
 {
+  // Manual begin() is required on core without built-in support e.g. mbed rp2040
+  if (!TinyUSBDevice.isInitialized()) {
+    TinyUSBDevice.begin(0);
+  }
+
   // clear configuration will remove all USB interfaces including CDC (Serial)
   TinyUSBDevice.clearConfiguration();
 
@@ -31,8 +36,16 @@ void setup()
 
 void loop()
 {
-  digitalWrite(led, HIGH);
-  delay(1000);
-  digitalWrite(led, LOW);
-  delay(1000);
+  #ifdef TINYUSB_NEED_POLLING_TASK
+  // Manual call tud_task since it isn't called by Core's background
+  TinyUSBDevice.task();
+  #endif
+
+  // toggle LED
+  static uint32_t ms = 0;
+  static uint8_t led_state = 0;
+  if (millis() - ms > 1000) {
+    ms = millis();
+    digitalWrite(LED_BUILTIN, 1-led_state);
+  }
 }

examples/CDC/serial_echo/serial_echo.ino

@@ -0,0 +1,40 @@
+/*********************************************************************
+ Adafruit invests time and resources providing this open source code,
+ please support Adafruit and open-source hardware by purchasing
+ products from Adafruit!
+
+ MIT license, check LICENSE for more information
+ Copyright (c) 2019 Ha Thach for Adafruit Industries
+ All text above, and the splash screen below must be included in
+ any redistribution
+*********************************************************************/
+
+#include "Adafruit_TinyUSB.h"
+
+/* This sketch demonstrates USB CDC Serial echo (convert to upper case) using SerialTinyUSB which
+ * is available for both core with built-in USB support and without.
+ */
+
+void setup() {
+  // Manual begin() is required on core without built-in support e.g. mbed rp2040
+  if (!TinyUSBDevice.isInitialized()) {
+    TinyUSBDevice.begin(0);
+  }
+}
+
+void loop() {
+  #ifdef TINYUSB_NEED_POLLING_TASK
+  // Manual call tud_task since it isn't called by Core's background
+  TinyUSBDevice.task();
+  #endif
+
+  uint8_t buf[64];
+  uint32_t count = 0;
+  while (SerialTinyUSB.available()) {
+    buf[count++] = (uint8_t) toupper(SerialTinyUSB.read());
+  }
+
+  if (count) {
+    SerialTinyUSB.write(buf, count);
+  }
+}