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89 lines
3.5 KiB
Markdown
89 lines
3.5 KiB
Markdown
| Supported Targets | ESP32-P4 | ESP32-S2 | ESP32-S3 |
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| ----------------- | -------- | -------- | -------- |
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# TinyUSB Sample Descriptor
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(See the README.md file in the upper level 'examples' directory for more information about examples.)
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This example shows how to set up ESP chip to get log output via Serial Device connection.
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As a USB stack, a TinyUSB component is used.
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## How to use example
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### Hardware Required
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Any ESP boards that have USB-OTG supported.
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#### Pin Assignment
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See common pin assignments for USB Device examples from [upper level](../../README.md#common-pin-assignments).
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### Build and Flash
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Build the project and flash it to the board, then run monitor tool to view serial output:
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```bash
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idf.py -p PORT flash monitor
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```
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(Replace PORT with the name of the serial port to use.)
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
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## Serial Connection
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After program's start and getting of the message of readiness (`Serial device is ready to connect`) you can connect to the board using any serial port terminal application (e.g. CoolTerm).
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Note: if you want to send data to the target see how to implement it via `tud_cdc_rx_cb` at the `tusb_serial_device` example.
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## Example Output
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After the flashing you should see the output at idf monitor:
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```
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I (288) example: USB initialization
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I (288) tusb_desc:
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┌─────────────────────────────────┐
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│ USB Device Descriptor Summary │
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├───────────────────┬─────────────┤
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│bDeviceClass │ 239 │
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├───────────────────┼─────────────┤
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│bDeviceSubClass │ 2 │
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├───────────────────┼─────────────┤
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│bDeviceProtocol │ 1 │
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├───────────────────┼─────────────┤
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│bMaxPacketSize0 │ 64 │
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├───────────────────┼─────────────┤
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│idVendor │ 0x303a │
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├───────────────────┼─────────────┤
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│idProduct │ 0x4001 │
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├───────────────────┼─────────────┤
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│bcdDevice │ 0x100 │
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├───────────────────┼─────────────┤
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│iManufacturer │ 0x1 │
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├───────────────────┼─────────────┤
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│iProduct │ 0x2 │
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├───────────────────┼─────────────┤
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│iSerialNumber │ 0x3 │
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├───────────────────┼─────────────┤
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│bNumConfigurations │ 0x1 │
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└───────────────────┴─────────────┘
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I (458) TinyUSB: TinyUSB Driver installed
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I (468) example: USB initialization DONE
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I (468) example: log -> UART
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example: print -> stdout
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example: print -> stderr
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...
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```
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Other log will be printed to USB:
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```
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I (3478) example: log -> USB
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example: print -> stdout
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example: print -> stderr
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```
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