31.5. UAC2 Speaker and Microphone

31.5.1. Overview

This example project shows USB hid generic transfers

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

31.5.2. 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

31.5.3. 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”

31.5.4. Running the example

When the project runs correctly

• Confirm the audio settings:

  (1) Set “TinyUSB headset” as the default play device

  

  (2) 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

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  (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)

  

  (3) Click “Stop” button after recording for a while

  

  (4) Click “Play” button

  

  (5) MCU Plays audio by speaker on DAO interface