mirror of
https://github.com/espressif/esp-idf.git
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igor.masar
7492f9b9cd
- usb_device: add esp32h4 DP/DM defaults (GPIO22/21) and "only:: esp32h4";
add H4 PHY considerations; add H4 MSC write-speed table; generalize MSC SD
note to {IDF_TARGET_NAME}; exclude tusb_ncm on H4
- usb_host: include esp32h4 in feature gates; add H4 PHY considerations
- usb_host_notes_dwc_otg: enable H4 by extending "only::" selector
- examples/usb: add ESP32-H4 row to DP/DM pin map
- docs_not_updated: drop H4 entries for usb_device, usb_host, and related
usb_host notes now covered
- soc(esp32h4): set internal PHY mapping to DP=22, DM=21
30 lines
991 B
Markdown
30 lines
991 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 50 | pin 49 |
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| ESP32-P4 1.1 | GPIO27 | GPIO26 |
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| ESP32-H4 | GPIO22 | GPIO21 |
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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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