# MIDI

## Overview

This example project shows MIDI demo

- PC sees a MIDI device via Device Manager

## 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

## PC Synth Software
 - To test on PC, you need to install synth software.
    - Windows: MIDI-OX
    - Linux (Ubuntu): qsynth, qjackctl.
    - MacOS: SimpleSynth

## 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](doc/MIDI-OX_select_device.png)

    - Uart console show log as follows, please select working mode: 1-auto play, 2-manual play。
    ``` console
        ----------------------------------------------------------------------
        $$\   $$\ $$$$$$$\  $$\      $$\ $$\
        $$ |  $$ |$$  __$$\ $$$\    $$$ |\__|
        $$ |  $$ |$$ |  $$ |$$$$\  $$$$ |$$\  $$$$$$$\  $$$$$$\   $$$$$$\
        $$$$$$$$ |$$$$$$$  |$$\$$\$$ $$ |$$ |$$  _____|$$  __$$\ $$  __$$\
        $$  __$$ |$$  ____/ $$ \$$$  $$ |$$ |$$ /      $$ |  \__|$$ /  $$ |
        $$ |  $$ |$$ |      $$ |\$  /$$ |$$ |$$ |      $$ |      $$ |  $$ |
        $$ |  $$ |$$ |      $$ | \_/ $$ |$$ |\$$$$$$$\ $$ |      \$$$$$$  |
        \__|  \__|\__|      \__|     \__|\__| \_______|\__|       \______/
        ----------------------------------------------------------------------
        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.