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History

Frantisek Hrbata 1c92945f59 change(examples): switch examples to use a minimal build

Currently, several example dependencies rely on the fact that all
registered components are added to the build, along with components
specified in common requirements. This results in longer build times
because even unused components must be built. Switch all examples to use
idf_minimal_build to compile only the components actually required by
the example.

Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>

2024-11-20 20:14:40 +01:00

device

change(examples): switch examples to use a minimal build

2024-11-20 20:14:40 +01:00

host

change(examples): switch examples to use a minimal build

2024-11-20 20:14:40 +01:00

README.md

docs(usb_host): Update usb_host example READMEs for P4

2024-10-31 09:00:59 +01:00

README.md

USB-OTG Examples

See the README.md file in the upper level examples directory for more information about examples.

Common Pin Assignments

Pin assignment is only needed for ESP chips that have a USB-OTG peripheral. 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.

ESP BOARD          USB CONNECTOR (type A)
                          --
                         | || VCC
[USBPHY_DM_NUM]  ------> | || D-
[USBPHY_DP_NUM]  ------> | || D+
                         | || GND
                          --

Refer to soc/usb_pins.h to find the real GPIO number of USBPHY_DP_NUM and USBPHY_DM_NUM.

	USB_DP	USB_DM
ESP32-S2/S3	GPIO20	GPIO19
ESP32-P4	pin 51	pin 50

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.