USB MIDI Device with Debugging via USB Serial

This project demonstrates how to build a USB MIDI device using the Raspberry Pi Pico, with an additional USB serial interface for debugging through printf and stdio. This allows the device to function as both a MIDI instrument and a serial port for debugging, perfect for embedded systems development ;)

Features

• MIDI Device: Sends MIDI note sequences through the USB interface to any compatible MIDI host.
• USB Debugging: Sends serial output (e.g., using printf) through a USB CDC interface, allowing for easy debugging.
• LED Blinking: Visual feedback with a blinking LED based on the device's USB connection state.

Getting Started

Prerequisites

• Raspberry Pi Pico or compatible RP2040 device.
• TinyUSB library for USB support.
• Pico SDK installed and configured.
• A toolchain for compiling C code (e.g., GCC for ARM).

Building the Project

1. Clone this repository:

   git clone https://github.com/erfanium/tusb-cdc-midi-example.git
   cd tusb-cdc-midi-example

2. Initialize and configure your Pico SDK environment:

   export PICO_SDK_PATH=/path/to/pico-sdk
   mkdir build
   cd build
   cmake ..
   make

3. Flash the compiled .uf2 file to your Raspberry Pi Pico:

   cp your_project.uf2 /media/youruser/RPI-RP2

Running the Program

• MIDI: Once flashed, the device will send a predefined melody through the USB MIDI interface.
• Serial Debugging: Connect to the Pico's serial interface with a terminal emulator (e.g., screen or minicom):

  screen /dev/ttyACM0 115200

  You should see serial output like Hello, Serial! for debugging purposes.