mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
84 lines
3.5 KiB
Markdown
84 lines
3.5 KiB
Markdown
| Supported Targets | ESP32-S2 | ESP32-S3 |
|
|
| ----------------- | -------- | -------- |
|
|
|
|
# TinyUSB MIDI Device Example
|
|
|
|
(See the README.md file in the upper level 'examples' directory for more information about examples.)
|
|
|
|
This example shows how to set up ESP chip to work as a USB MIDI Device.
|
|
It outputs a MIDI note sequence via the native USB port.
|
|
|
|
As a USB stack, a TinyUSB component is used.
|
|
|
|
## How to use example
|
|
|
|
### Hardware Required
|
|
|
|
Any ESP board that have USB-OTG supported.
|
|
|
|
#### Pin Assignment
|
|
|
|
_Note:_ In case your board doesn't have micro-USB connector connected to USB-OTG peripheral, you may have to DIY a cable and connect **D+** and **D-** to the pins listed below.
|
|
|
|
See common pin assignments for USB Device examples from [upper level](../../README.md#common-pin-assignments).
|
|
|
|
### Build and Flash
|
|
|
|
Build the project and flash it to the board, then run monitor tool to view serial output:
|
|
|
|
```bash
|
|
idf.py -p PORT flash monitor
|
|
```
|
|
|
|
(Replace PORT with the name of the serial port to use.)
|
|
|
|
(To exit the serial monitor, type ``Ctrl-]``.)
|
|
|
|
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
|
|
|
|
## MIDI output
|
|
|
|
You can use several programs on your computer to listen to the ESP's MIDI output depending on your operating system, e.g.:
|
|
|
|
* Windows: `MIDI-OX`
|
|
* Linux: `qsynth` with `qjackctl`
|
|
* macOS: `SimpleSynth`
|
|
|
|
## Example Output
|
|
|
|
After the flashing you should see the output at idf monitor:
|
|
|
|
```
|
|
I (285) example: USB initialization
|
|
I (285) tusb_desc:
|
|
┌─────────────────────────────────┐
|
|
│ USB Device Descriptor Summary │
|
|
├───────────────────┬─────────────┤
|
|
│bDeviceClass │ 0 │
|
|
├───────────────────┼─────────────┤
|
|
│bDeviceSubClass │ 0 │
|
|
├───────────────────┼─────────────┤
|
|
│bDeviceProtocol │ 0 │
|
|
├───────────────────┼─────────────┤
|
|
│bMaxPacketSize0 │ 64 │
|
|
├───────────────────┼─────────────┤
|
|
│idVendor │ 0x303a │
|
|
├───────────────────┼─────────────┤
|
|
│idProduct │ 0x4008 │
|
|
├───────────────────┼─────────────┤
|
|
│bcdDevice │ 0x100 │
|
|
├───────────────────┼─────────────┤
|
|
│iManufacturer │ 0x1 │
|
|
├───────────────────┼─────────────┤
|
|
│iProduct │ 0x2 │
|
|
├───────────────────┼─────────────┤
|
|
│iSerialNumber │ 0x3 │
|
|
├───────────────────┼─────────────┤
|
|
│bNumConfigurations │ 0x1 │
|
|
└───────────────────┴─────────────┘
|
|
I (455) TinyUSB: TinyUSB Driver installed
|
|
I (465) example: USB initialization DONE
|
|
```
|
|
|
|
Disconnect UART-to-USB port and connect the native USB port to a computer then the device should show up as a USB MIDI Device while outputting notes.
|