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4cf3acb594
esp-idf/examples/peripherals/usb
History
Tomas Rezucha 4cf3acb594 fix(usb/host): Do not abort on string descriptor overflow 
Some devices return full LANGID table, even if short LANGID table was requested.
No memory overflow occurs, because we have allocated enough memory for transfers to the
default pipe. So we can ignore the error and continue with string desc fetching.
2023-12-05 16:44:53 +01:00
..
device feature(examples/usb): Define maximum opend files in MSC device example 2023-10-24 15:19:58 +02:00
host fix(usb/host): Do not abort on string descriptor overflow 2023-12-05 16:44:53 +01:00
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