To what voltage should the D+ line be pulled up when designing USB connection in STM32? +5V or +3.3V? All documentation and dev board scematics says it's 3.3V, but it didn't work.
Switching in USB Consumer Applications | Analog Devices
Discharge into a USB connector during a plug-in event. One of the... | Download Scientific Diagram
Isolating USB
USB Back Voltage
GPIO USB signal wedge - D+/D- interruptor from future gadget labs on Tindie
Isolating USB
Sharing USB 3.0 links in embedded applications - Embedded.com
ON Semiconductor Is Now
USB Type A Female Breakout Hookup Guide - learn.sparkfun.com
USB pinout, wiring and how it works!
Switching in USB Consumer Applications | Analog Devices
usb host - My USB D+ and D- signals have what looks like a clock signal embedded onto it. The chip is a ISP1362 - Electrical Engineering Stack Exchange
USB Dedicated Charging Port Controller and Power Switch. datasheet (Rev. A)
USB keyboard mouse protocols system timing auxiliary device signal definitions
What is the exact voltage of a standard USB data signal in either data wire? I'd assume they are the same. I know that the power wires are 5 volts. - Quora
APPLICATION NOTE
USB Made Simple - Part 2
Bootloader - a pin for the usb d+ disconnect - Spark Logic
Why I cannot receive data from USB to arduino when I connect direct from TX and RX arduino to TX and RX USB (D+ and D-) - Stack Overflow
Configuring a micro-controller for low-speed USB communication
