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65c2cc095d
P4 had separate PHY implementation for initial bring-up, now we can merge it with the original PHY driver.
29 lines
956 B
Markdown
29 lines
956 B
Markdown
# 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 a 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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| || VBUS (5V)
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[USB_DM] ------> | || D-
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[USB_DP] ------> | || D+
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| || GND
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--
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```
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### USB PHY pin mapping
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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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| ESP32-P4 2.0 | pin 51 | pin 50 |
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| ESP32-P4 1.1 | GPIO27 | GPIO26 |
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> Note: On the ESP32-P4, the USB 2.0 PHY pins are dedicated to USB-OTG functionality and cannot be used as general-purpose GPIOs.
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