5.21. MIDI

5.21.1. Overview

This example project shows MIDI demo

  • PC sees a MIDI device via Device Manager

5.21.2. 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

5.21.3. PC Synth Software

  • To test on PC, you need to install synth software.

    • Windows: MIDI-OX

    • Linux (Ubuntu): qsynth, qjackctl.

    • MacOS: SimpleSynth

5.21.4. Running the example

  • Taking Windows MIDI-OX as an example

    • Download the program and run. The computer can automatically recognize and enumerate a MIDI device.

    • Open MIDI-OX Software, click menu “options-MIDI devices…” , MIDI Inputs select “HPMicro MIDI DEMO”，MIDI Outputs select “Microsoft GS Wavetable Synth”.

    MIDI-OX_select_device.png

    • Uart console show log as follows, please select working mode: 1-auto play, 2-manual play。

       ----------------------------------------------------------------------
       $$\   $$\ $$$$$$$\  $$\      $$\ $$\
       $$ |  $$ |$$  __$$\ $$$\    $$$ |\__|
       $$ |  $$ |$$ |  $$ |$$$$\  $$$$ |$$\  $$$$$$$\  $$$$$$\   $$$$$$\
       $$$$$$$$ |$$$$$$$  |$$\$$\$$ $$ |$$ |$$  _____|$$  __$$\ $$  __$$\
       $$  __$$ |$$  ____/ $$ \$$$  $$ |$$ |$$ /      $$ |  \__|$$ /  $$ |
       $$ |  $$ |$$ |      $$ |\$  /$$ |$$ |$$ |      $$ |      $$ |  $$ |
       $$ |  $$ |$$ |      $$ | \_/ $$ |$$ |\$$$$$$$\ $$ |      \$$$$$$  |
       \__|  \__|\__|      \__|     \__|\__| \_______|\__|       \______/
       ----------------------------------------------------------------------
       CherryUSB midi device sample.

       ***********Select Work Mode**********
       1 - Auto Play
       2 - Manual Play

       Please Enter Play Number:



- When select 1, this MIDI example send sequence of note (on/off) repeatedly, that realize automatic playing of piano keys, and users can listen to them through computer audio.

- When select 2, this MIDI example send note (on/off) by pushing keybutton, that simulate pressing the piano keys, and users can listen to them through computer audio.