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ebd058c8c9
esp-idf/examples/peripherals/usb
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Darian Leung ebd058c8c9 usb: Update USB Host Library 
This commit updates the USB Host Library as follows:

- usb_helpers.h
    - Removed dependency on USB Host Library API
    - Added function to print string descriptors
- usbh
    - Fixed bug where an interface/endpoint could be claimed/allocated multiple times
    - Removed redundant device ref_count change
- Added unit test for USB Host Library API usage
2022-02-18 15:51:05 +08:00
..
host usb: Update USB Host Library 2022-02-18 15:51:05 +08:00
tusb_console tiny_usb: rename Kconfig name 2021-07-22 10:43:10 +08:00
tusb_sample_descriptor docs: fix broken link in usb example readme 2021-07-28 12:44:40 +08:00
tusb_serial_device tiny_usb: rename Kconfig name 2021-07-22 10:43:10 +08:00
README.md tiny_usb: rename Kconfig name 2021-07-22 10:43:10 +08:00

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 an 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