43.6. UAC2 Speaker and Microphone

43.6.1. Overview

This example project shows USB hid generic transfers

  • PC transmits a HID report to MCU, and then MC send it back to PC

43.6.2. Board Setting

  • Connect a USB port on PC to the PWR DEBUG port on the development board with a USB Type-C cable

  • Connect a USB port on PC to one of USB port on the development board with a USB Type-C cable

  • Connect a speaker to the DAO interface on the development board

43.6.3. Project Configuration

  • File CMakeLists.txt：

    When BOARD_DEVICE_RHPORT_NUM is defined as 0, it means to use USB0.

    When BOARD_DEVICE_RHPORT_NUM is defined as 1, it means to use USB1.

  • The property of USB device can be configured by “tusb_config.h” or “CMakeListx.txt”

43.6.4. Running the example

When the project runs correctly

  • Confirm the audio settings:

    1. Set “TinyUSB headset” as the default play device

    1. Set “TinyUSB headset” as the default recording device

  • Play

    1. Start a music player on PC and choose a music song, and then click “Play” button

    2. MCU plays music by speaker as receiving audio data from PC.

  • Recording

    1. Stop the music player on PC

    2. Start a recording tool and click “Record” button, and at the same time play a music song by another player device(e.g. mobile phone)

    1. Click “Stop” button after recording for a while

    1. Click “Play” button

    1. MCU Plays audio by speaker on DAO interface