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88 lines
2.4 KiB
Markdown
88 lines
2.4 KiB
Markdown
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| Supported Targets | ESP32-S2 |
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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 ESP32-S2 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 board with the ESP32-S2 chip with USB connectors or with exposed USB's D+ and D- (DATA+/DATA-) pins.
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If the board has no USB connector, but has the pins connect pins directly to the host (e.g. with DIY cable from any USB connection cable)
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```
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ESP32-S2 BOARD USB CONNECTOR (type A)
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--
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| || VCC
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[GPIO 19] --------> | || D-
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[GPIO 20] --------> | || D+
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| || GND
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--
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```
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You can also use power from the USB connector.
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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 (340) example: USB initialization
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I (340) TinyUSB: Driver installation...
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I (340) TinyUSB - Descriptors Control: Setting of a descriptor:
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.bDeviceClass = 239
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.bDeviceSubClass = 2,
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.bDeviceProtocol = 1,
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.bMaxPacketSize0 = 64,
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.idVendor = 0x0000303a,
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.idProduct = 0x00004001,
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.bcdDevice = 0x00000100,
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.iManufacturer = 0x01,
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.iProduct = 0x02,
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.iSerialNumber = 0x03,
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.bNumConfigurations = 0x01
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I (373) TinyUSB: Driver installed
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I (373) example: USB initialization DONE
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I (383) 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 (5382) 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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```
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