AN0046: USB Hardware Design Guidelines
Are these USB series resistors important?
USB dedicated charging port (DCP) controller BL2513M
A brief introduction to the USB protocol - AVR
USB Type A Female Breakout Hookup Guide - learn.sparkfun.com
USB Made Simple - Part 3
USB charging without fear
USB Back Voltage
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.
USB Made Simple - Part 6
The Basics of USB Battery Charging | Maxim Integrated
Modify a Cheap USB Charger to Feed an IPod, IPhone or Samsung Galaxy : 7 Steps (with Pictures) - Instructables
Wrong USB line termination in official LPC11U24 mbed schematic (TGT D+ D- lines) | Mbed
Apple and other USB charger secrets
charging - Floating D+ and D- on a USB Charger - Electrical Engineering Stack Exchange
Does the resistor value on D+ and D- line matter on Arduinos? - Electrical Engineering Stack Exchange
Missing external USB D+ pullup on STM32 powered PCB | Details | Hackaday.io
USB in a NutShell - Chapter 2 - Hardware
The Mystery of USB Chargers | Electronics Repair And Technology News
USB Charging using RECOM DC/DC converters | RECOM
microcontroller - USB resistor locations - Electrical Engineering Stack Exchange
ftdi - What is the purpose of capacitors and resistors in this USB bus? - Electrical Engineering Stack Exchange
The Mystery of USB Chargers | Electronics Repair And Technology News
USB charging without fear
