USB OTG and ESP32-S2

Question

I have an ESP32-S2-DevKitM-1 which is supposed to able to act as USB HID device.

But whatever I try using either ESP-IDF or Arduino-IDE, I can't get any data from it.

I ran this esp-idf example.

I also ran the arduino example.

I connected GPIO20/19 to D+/D- of a USB cable.

When I plug in that cable, my host computer logs:

usb 1-6: new full-speed USB device number 93 using xhci_hcd
usb 1-6: device descriptor read/64, error -71
usb 1-6: device descriptor read/64, error -71
usb 1-6: new full-speed USB device number 94 using xhci_hcd
usb 1-6: device descriptor read/64, error -71
usb 1-6: device descriptor read/64, error -71
usb usb1-port6: attempt power cycle
usb 1-6: new full-speed USB device number 95 using xhci_hcd
usb 1-6: Device not responding to setup address.
usb 1-6: Device not responding to setup address.
usb 1-6: device not accepting address 95, error -71
usb 1-6: new full-speed USB device number 96 using xhci_hcd
usb 1-6: Device not responding to setup address.
usb 1-6: Device not responding to setup address.
usb 1-6: device not accepting address 96, error -71
usb usb1-port6: unable to enumerate USB device

The esp-idf example fails to send, because tud_mounted() is false, and the arduino-ide example fails on SendReport(): not ready.

How can I get the ESP32-S2 to talk USB with my host computer?

Answer 1

This problem went away when I replaced my DIY USB cable connection with an Adafruit USB-C breakout board.

I checked all the connections of my cable, but somehow it would not work, until I replaced it.