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24 lines
860 B
Markdown
24 lines
860 B
Markdown
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# USB-OTG Examples
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See the [README.md](../README.md) file in the upper level [examples](../) directory for more information about examples.
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## Common Pin Assignments
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Pin assignment is only needed for ESP chips that have an USB-OTG peripheral.
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If your board doesn't have a USB connector connected to the USB-OTG dedicated GPIOs, you may have to DIY a cable and connect **D+** and **D-** to the pins listed below.
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```
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ESP BOARD USB CONNECTOR (type A)
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--
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| || VCC
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[USBPHY_DM_NUM] ------> | || D-
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[USBPHY_DP_NUM] ------> | || D+
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| || GND
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--
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```
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Refer to `soc/usb_pins.h` to find the real GPIO number of **USBPHY_DP_NUM** and **USBPHY_DM_NUM**.
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| | USB_DP | USB_DM |
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| ----------- | ------ | ------ |
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| ESP32-S2/S3 | GPIO20 | GPIO19 |
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